ChangeSetItem
class ChangeSetItem extends DataObject implements Thumbnail (View source)
A single line in a changeset
Traits
Allows an object to have extensions applied to it.
A class that can be instantiated or replaced via DI
Provides extensions to this object to integrate it with standard config API methods.
Allows an object to declare a set of custom methods
Constants
CHANGE_NONE |
Represents that an object has not yet been changed, but
should be included in this changeset as soon as any changes exist. Also used for unversioned objects that have no non-recursive publish. |
CHANGE_STRICT |
Represents a field that has changed type, although not the loosely defined value. (before !== after && before == after) E.g. change 1 to true or "true" to true, but not true to 0. Value changes are by nature also considered strict changes. |
CHANGE_VALUE |
Represents a field that has changed the loosely defined value
(before != after, thus, before !== after))
E.g. change false to true, but not false to 0 |
CREATE_OBJECT |
Value for 2nd argument to constructor, indicating that a new record is being created
Setters will be called on fields passed, and defaults will be populated |
CREATE_SINGLETON |
Value for 2nd argument to constructor, indicating that a record is a singleton representing the whole type,
e.g. to call requireTable() in dev/build
Defaults will not be populated and data passed will be ignored |
CREATE_HYDRATED |
Value for 2nd argument to constructor, indicating that a record is being hydrated from the database
Setter methods are not called, and population via private static $defaults will not occur. |
CREATE_MEMORY_HYDRATED |
Value for 2nd argument to constructor, indicating that a record is being hydrated from memory. This can be used
to initialised a record that doesn't yet have an ID. Setter methods are not called, and population via private
static $defaults will not occur. |
EXPLICITLY |
|
IMPLICITLY |
|
CHANGE_DELETED |
Represents an object deleted |
CHANGE_MODIFIED |
Represents an object which was modified |
CHANGE_CREATED |
Represents an object added |
Config options
extensions | array | An array of extension names and parameters to be applied to this object upon construction. |
from Extensible |
unextendable_classes | array | Classes that cannot be extended |
from Extensible |
casting | array | Use a casting object for a field. This is a map from field name to class name of the casting object. |
from DataObject |
default_cast | string | The default object to cast scalar fields to if casting information is not specified, and casting to an object is required. |
from ViewableData |
casting_cache | array | from ViewableData | |
singular_name | string | Human-readable singular name. |
from DataObject |
plural_name | string | Human-readable plural name |
from DataObject |
api_access | Allow API access to this object? |
from DataObject | |
default_classname | string | Allows specification of a default value for the ClassName field. |
from DataObject |
validation_enabled | bool | Should dataobjects be validated before they are written? |
from DataObject |
fixed_fields | array | Base fields which are not defined in static $db |
from DataObject |
table_name | |||
cascade_deletes | array | List of relations that should be cascade deleted, similar to |
from DataObject |
cascade_duplicates | array | List of relations that should be cascade duplicate. |
from DataObject |
subclass_access | from DataObject | ||
db | |||
create_table_options | array | Specify custom options for a CREATE TABLE call. |
from DataObject |
indexes | |||
defaults | array | Inserts standard column-values when a DataObject is instantiated. Does not insert default records {$default_records}. |
from DataObject |
default_records | array | Multidimensional array which inserts default data into the database on a db/build-call as long as the database-table is empty. Please use this only for simple constructs, not for SiteTree-Objects etc. which need special behaviour such as publishing and ParentNodes. |
from DataObject |
has_one | |||
belongs_to | array | A meta-relationship that allows you to define the reverse side of a DataObject::$has_one. |
from DataObject |
has_many | array | This defines a one-to-many relationship. It is a map of component name to the remote data class. |
from DataObject |
many_many | |||
many_many_extraFields | array | Extra fields to include on the connecting many-many table. |
from DataObject |
belongs_many_many | |||
default_sort | string | The default sort expression. This will be inserted in the ORDER BY clause of a SQL query if no other sort expression is provided. |
from DataObject |
searchable_fields | array | Default list of fields that can be scaffolded by the ModelAdmin search interface. |
from DataObject |
general_search_field_name | string | Name of the field which is used as a stand-in for searching across all searchable fields. |
from DataObject |
general_search_field_filter | string | The search filter to use when searching with the general search field. |
from DataObject |
general_search_split_terms | bool | If true, the search phrase is split into individual terms, and checks all searchable fields for each search term. |
from DataObject |
field_labels | array | User defined labels for searchable_fields, used to override default display in the search form. |
from DataObject |
summary_fields | array | Provides a default list of fields to be used by a 'summary' view of this object. |
from DataObject |
Properties
protected static | array | $extra_methods | Custom method sources |
from CustomMethods |
protected | array | $extra_method_registers | Name of methods to invoke by defineMethods for this instance |
from CustomMethods |
protected static | array | $built_in_methods | Non-custom methods |
from CustomMethods |
protected | Extension[] | $extension_instances | from Extensible | |
protected | callable[][] | $beforeExtendCallbacks | List of callbacks to call prior to extensions having extend called on them, each grouped by methodName. |
from Extensible |
protected | callable[][] | $afterExtendCallbacks | List of callbacks to call after extensions having extend called on them, each grouped by methodName. |
from Extensible |
protected | ViewableData | $failover | A failover object to attempt to get data from if it is not present on this object. |
from ViewableData |
protected | ViewableData | $customisedObject | from ViewableData | |
public deprecated | bool | $destroyed | from DataObject | |
protected | array | $record | Data stored in this objects database record. An array indexed by fieldname. |
from DataObject |
protected | DataObject | $joinRecord | If selected through a many_many through relation, this is the instance of the through record |
from DataObject |
protected | array | $original | The database record (in the same format as $record), before any changes. |
from DataObject |
protected | bool | $brokenOnDelete | Used by onBeforeDelete() to ensure child classes call parent::onBeforeDelete() |
from DataObject |
protected | bool | $brokenOnWrite | Used by onBeforeWrite() to ensure child classes call parent::onBeforeWrite() |
from DataObject |
protected static | array | $_cache_get_one | Static caches used by relevant functions. |
from DataObject |
protected static | array | $_cache_field_labels | Cache of field labels |
from DataObject |
protected | DataObject[] | $components | Non-static relationship cache, indexed by component name. |
from DataObject |
protected | UnsavedRelationList[] | $unsavedRelations | Non-static cache of has_many and many_many relations that can't be written until this object is saved. |
from DataObject |
protected | array | $sourceQueryParams | from DataObject | |
int | $ID | ID of the DataObject, 0 if the DataObject doesn't exist in database. |
from DataObject | |
int | $OldID | ID of object, if deleted |
from DataObject | |
string | $Title | from DataObject | ||
string | $ClassName | Class name of the DataObject |
from DataObject | |
string | $LastEdited | Date and time of DataObject's last modification. |
from DataObject | |
string | $Created | Date and time of DataObject creation. |
from DataObject | |
string | $ObsoleteClassName | If ClassName no longer exists this will be set to the legacy value |
from DataObject | |
string | $Added | |||
string | $ObjectClass | The base data class for the referenced DataObject |
||
int | $ObjectID | The numeric ID for the referenced object |
||
int | $ChangeSetID | ID of parent ChangeSet object |
||
int | $VersionBefore | |||
int | $VersionAfter |
Methods
Attempts to locate and call a method dynamically added to a class at runtime if a default cannot be located
Adds any methods from Extension instances attached to this object.
Register an callback to invoke that defines extra methods
Return TRUE if a method exists on this object
Get meta-data details on a named method
Return the names of all the methods available on this object
Add all the methods from an object property (which is an Extension) to this object.
Add all the methods from an object property (which is an Extension) to this object.
Add a wrapper method - a method which points to another method with a different name. For example, Thumbnail(x) can be wrapped to generateThumbnail(x)
Add callback as a method.
Allows user code to hook into Object::extend prior to control being delegated to extensions. Each callback will be reset once called.
Allows user code to hook into Object::extend after control being delegated to extensions. Each callback will be reset once called.
Adds any methods from Extension instances attached to this object.
Add an extension to a specific class.
No description
Get extra config sources for this class
Return TRUE if a class has a specified extension.
Calls a method if available on both this object and all applied Extensions, and then attempts to merge all results into an array
Run the given function on all of this object's extensions. Note that this method originally returned void, so if you wanted to return results, you're hosed
Get an extension instance attached to this object by name.
Returns TRUE if this object instance has a specific extension applied in $extension_instances. Extension instances are initialized at constructor time, meaning if you use add_extension() afterwards, the added extension will just be added to new instances of the extended class. Use the static method has_extension() to check if a class (not an instance) has a specific extension.
Get all extension instances for this specific object instance.
An implementation of the factory method, allows you to create an instance of a class
Creates a class instance by the "singleton" design pattern.
Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .....).
Gets the uninherited value for the given config option
Construct a new DataObject.
Check if a field exists on this object or its failover.
Get the value of a property/field on this object. This will check if a method called get{$property} exists, then check if a field is available using ViewableData::getField(), then fall back on a failover object.
Set a property/field on this object. This will check for the existence of a method called set{$property}, then use the ViewableData::setField() method.
Set a failover object to attempt to get data from if it is not present on this object.
Returns true if the given field exists in a database column on any of
the objects tables and optionally look up a dynamic getter with
get
Set the value of the field Called by __set() and any setFieldName() methods you might create.
Merge some arbitrary data in with this object. This method returns a ViewableData_Customised instance with references to both this and the new custom data.
Returns true if this object "exists", i.e., has a sensible value.
Return the "casting helper" (a piece of PHP code that when evaluated creates a casted value object) for a field on this object. This helper will be a subclass of DBField.
Get the class name a field on this object will be casted to.
Return the string-format type for the given field.
Render this object into the template, and get the result as a string. You can pass one of the following as the $template parameter:
- a template name (e.g. Page)
- an array of possible template names - the first valid one will be used
- an SSViewer instance
Generate the cache name for a field
Store a value in the field cache
Get the value of a field on this object, automatically inserting the value into any available casting objects that have been specified.
A simple wrapper around ViewableData::obj() that automatically caches the result so it can be used again without re-running the method.
Returns true if the given method/parameter has a value (Uses the DBField::hasValue if the parameter is a database field)
Get the string value of a field on this object that has been suitable escaped to be inserted directly into a template.
Get an array of XML-escaped values by field name
Return a single-item iterator so you can iterate over the fields of a single record.
Find appropriate templates for SSViewer to use to render this object
When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need access to itself.
Get part of the current classes ancestry to be used as a CSS class.
Return debug information about this object that can be rendered into a template
Create a duplicate of this node. Can duplicate many_many relations
Copies the given relations from this object to the destination
Copies the many_many and belongs_many_many relations from one object to another instance of the name of object.
Duplicates a single many_many relation from one object to another.
Duplicates a single many_many relation from one object to another.
Duplicates a single has_one relation from one object to another.
Duplicates a single belongs_to relation from one object to another.
Return obsolete class name, if this is no longer a valid class
Set the ClassName attribute. $class is also updated.
Create a new instance of a different class from this object's record.
Returns TRUE if all values (other than "ID") are considered empty (by weak boolean comparison).
Pluralise this item given a specific count.
Get the user friendly singular name of this DataObject.
Get the translated user friendly singular name of this DataObject same as singular_name() but runs it through the translating function
Get the user friendly plural name of this DataObject If the name is not defined (by renaming $plural_name in the subclass), this returns a pluralised version of the class name.
Get the translated user friendly plural name of this DataObject Same as plural_name but runs it through the translation function Translation string is in the form: $this->class.PLURALNAME Example: Page.PLURALNAME
Standard implementation of a title/label for a specific record. Tries to find properties 'Title' or 'Name', and falls back to the 'ID'. Useful to provide user-friendly identification of a record, e.g. in errormessages or UI-selections.
Returns the associated database record - in this case, the object itself.
Return all currently fetched database fields.
Update a number of fields on this object, given a map of the desired changes.
Pass changes as a map, and try to get automatic casting for these fields.
Merges data and relations from another object of same class, without conflict resolution. Allows to specify which dataset takes priority in case its not empty.
Forces the record to think that all its data has changed.
Find all objects that will be cascade deleted if this object is deleted
Load the default values in from the self::$defaults array.
Detects and updates all changes made to this object
Writes a subset of changes for a specific table to the given manipulation
Ensures that a blank base record exists with the basic fixed fields for this dataobject
Generate and write the database manipulation for all changed fields
Writes all changes to this object to the database.
Write the cached components to the database. Cached components could refer to two different instances of the same record.
Delete the record with the given ID.
Get the class ancestry, including the current class name.
Return a unary component object from a one to one relationship, as a DataObject.
Returns a one-to-many relation as a HasManyList
Find the foreign class of a relation on this DataObject, regardless of the relation type.
Given a relation name, determine the relation type
Given a relation declared on a remote class, generate a substitute component for the opposite side of the relation.
Returns a many-to-many component, as a ManyManyList.
Return the class of a one-to-one component. If $component is null, return all of the one-to-one components and their classes. If the selected has_one is a polymorphic field then 'DataObject' will be returned for the type.
Returns the class of a remote belongs_to relationship. If no component is specified a map of all components and their class name will be returned.
Gets the class of a one-to-many relationship. If no $component is specified then an array of all the one-to-many relationships and their classes will be returned.
Return the many-to-many extra fields specification.
This returns an array (if it exists) describing the database extensions that are required, or false if none
Generates a SearchContext to be used for building and processing a generic search form for properties on this object.
Name of the field which is used as a stand-in for searching across all searchable fields.
Determine which properties on the DataObject are searchable, and map them to their default FormField representations. Used for scaffolding a searchform for ModelAdmin.
Scaffold a simple edit form for all properties on this dataobject, based on default FormField} mapping in {@link DBField::scaffoldFormField().
Allows user code to hook into DataObject::getCMSFields prior to updateCMSFields being called on extensions
Allows user code to hook into DataObject::getCMSFields after updateCMSFields being called on extensions
Centerpiece of every data administration interface in Silverstripe, which returns a FieldList} suitable for a {@link Form object.
need to be overload by solid dataobject, so that the customised actions of that dataobject, including that dataobject's extensions customised actions could be added to the EditForm.
When extending this class and overriding this method, you will need to instantiate the CompositeValidator by calling parent::getCMSCompositeValidator(). This will ensure that the appropriate extension point is also invoked.
Used for simple frontend forms without relation editing or TabSet} behaviour. Uses {@link scaffoldFormFields() by default. To customize, either overload this method in your subclass, or extend it by DataExtension->updateFrontEndFields().
Loads all the stub fields that an initial lazy load didn't load fully.
Return the fields that have changed since the last write.
Uses getChangedFields() to determine if fields have been changed since loading them from the database.
Set the value of the field, using a casting object.
Returns true if the given field exists as a database column
Process tri-state responses from permission-alterting extensions. The extensions are expected to return one of three values:
Return the DBField object that represents the given field.
Traverses to a DBField referenced by relationships between data objects.
Traverses to a field referenced by relationships between data objects, returning the value The path to the related field is specified with dot separated syntax (eg: Parent.Child.Child.FieldName)
Temporary hack to return an association name, based on class, to get around the mangle of having to deal with reverse lookup of relationships to determine autogenerated foreign keys.
Return all objects matching the filter sub-classes are automatically selected and included
Return the first item matching the given query.
Flush the cached results for all relations (has_one, has_many, many_many) Also clears any cached aggregate data.
Flush the get_one global cache and destroy associated objects.
Return the given element, searching by ID.
Get list of parameters that should be inherited to relations on this object
Add default records to database. This function is called whenever the database is built, after the database tables have all been created. Overload this to add default records when the database is built, but make sure you call parent::requireDefaultRecords().
Invoked after every database build is complete (including after table creation and default record population).
Get the default searchable fields for this object, as defined in the $searchable_fields list. If searchable fields are not defined on the data object, uses a default selection of summary fields.
Get any user defined searchable fields labels that exist. Allows overriding of default field names in the form interface actually presented to the user.
Get a human-readable label for a single field, see fieldLabels() for more details.
Defines a default list of filters for the search context.
Temporarily disable subclass access in data object qeur
Returns the list of provided translations for this object.
If selected through a many_many through relation, this is the instance of the joined record
Find objects in the given relationships, merging them into the given list
Helper method to merge owned/owning items into a list.
Generate a unique key for data object the unique key uses the DataObject::getUniqueKeyComponents() extension point so unique key modifiers such as versioned or fluent are covered i.e. same data object in different stages or different locales will produce different unique key
Merge single object into a list, but ensures that existing objects are not re-added.
Find version of this object in the given stage.
Once this item (and all owned objects) are published, unlink all disowned objects
Get the ChangeSetItems that reference a passed DataObject
Details
mixed
__call(string $method, array $arguments)
Attempts to locate and call a method dynamically added to a class at runtime if a default cannot be located
You can add extra methods to a class using Extensions}, {@link Object::createMethod() or Object::addWrapperMethod()
protected
defineMethods()
Adds any methods from Extension instances attached to this object.
All these methods can then be called directly on the instance (transparently mapped through __call()}), or called explicitly through {@link extend().
protected
registerExtraMethodCallback(string $name, callable $callback)
Register an callback to invoke that defines extra methods
bool
hasMethod(string $method)
Return TRUE if a method exists on this object
This should be used rather than PHP's inbuild method_exists() as it takes into account methods added via extensions
protected array
getExtraMethodConfig(string $method)
Get meta-data details on a named method
array
allMethodNames(bool $custom = false)
Return the names of all the methods available on this object
protected array
findMethodsFromExtension(object $extension)
deprecated
deprecated
No description
protected
addMethodsFrom(string $property, string|int $index = null)
Add all the methods from an object property (which is an Extension) to this object.
protected
removeMethodsFrom(string $property, string|int $index = null)
Add all the methods from an object property (which is an Extension) to this object.
protected
addWrapperMethod(string $method, string $wrap)
Add a wrapper method - a method which points to another method with a different name. For example, Thumbnail(x) can be wrapped to generateThumbnail(x)
protected
addCallbackMethod(string $method, callable $callback)
Add callback as a method.
protected
beforeExtending(string $method, callable $callback)
Allows user code to hook into Object::extend prior to control being delegated to extensions. Each callback will be reset once called.
protected
afterExtending(string $method, callable $callback)
Allows user code to hook into Object::extend after control being delegated to extensions. Each callback will be reset once called.
protected
constructExtensions()
deprecated
deprecated
No description
protected
defineExtensionMethods()
Adds any methods from Extension instances attached to this object.
All these methods can then be called directly on the instance (transparently mapped through __call()}), or called explicitly through {@link extend().
static bool
add_extension(string $classOrExtension, string $extension = null)
Add an extension to a specific class.
The preferred method for adding extensions is through YAML config, since it avoids autoloading the class, and is easier to override in more specific configurations.
As an alternative, extensions can be added to a specific class directly in the Object::$extensions array. See SiteTree::$extensions for examples. Keep in mind that the extension will only be applied to new instances, not existing ones (including all instances created through singleton()).
static
remove_extension(string $extension)
Remove an extension from a class.
Note: This will not remove extensions from parent classes, and must be called directly on the class assigned the extension.
Keep in mind that this won't revert any datamodel additions of the extension at runtime, unless its used before the schema building kicks in (in your _config.php). Doesn't remove the extension from any Object instances which are already created, but will have an effect on new extensions. Clears any previously created singletons through singleton() to avoid side-effects from stale extension information.
static array
get_extensions(string $class = null, bool $includeArgumentString = false)
No description
static array|null
get_extra_config_sources(string $class = null)
Get extra config sources for this class
static bool
has_extension(string $classOrExtension, string $requiredExtension = null, bool $strict = false)
Return TRUE if a class has a specified extension.
This supports backwards-compatible format (static Object::has_extension($requiredExtension)) and new format ($object->has_extension($class, $requiredExtension))
array
invokeWithExtensions(string $method, mixed $a1 = null, mixed $a2 = null, mixed $a3 = null, mixed $a4 = null, mixed $a5 = null, mixed $a6 = null, mixed $a7 = null)
Calls a method if available on both this object and all applied Extensions, and then attempts to merge all results into an array
array
extend(string $method, mixed $a1 = null, mixed $a2 = null, mixed $a3 = null, mixed $a4 = null, mixed $a5 = null, mixed $a6 = null, mixed $a7 = null)
Run the given function on all of this object's extensions. Note that this method originally returned void, so if you wanted to return results, you're hosed
Currently returns an array, with an index resulting every time the function is called. Only adds returns if they're not NULL, to avoid bogus results from methods just defined on the parent extension. This is important for permission-checks through extend, as they use min() to determine if any of the returns is FALSE. As min() doesn't do type checking, an included NULL return would fail the permission checks.
The extension methods are defined during __construct()} in {@link defineMethods().
Extension|null
getExtensionInstance(string $extension)
Get an extension instance attached to this object by name.
bool
hasExtension(string $extension)
Returns TRUE if this object instance has a specific extension applied in $extension_instances. Extension instances are initialized at constructor time, meaning if you use add_extension() afterwards, the added extension will just be added to new instances of the extended class. Use the static method has_extension() to check if a class (not an instance) has a specific extension.
Caution: Don't use singleton(
Extension[]
getExtensionInstances()
Get all extension instances for this specific object instance.
See get_extensions() to get all applied extension classes for this class (not the instance).
This method also provides lazy-population of the extension_instances property.
static Injectable
create(mixed ...$args)
An implementation of the factory method, allows you to create an instance of a class
This method will defer class substitution to the Injector API, which can be customised via the Config API to declare substitution classes.
This can be called in one of two ways - either calling via the class directly, or calling on Object and passing the class name as the first parameter. The following are equivalent: $list = DataList::create(SiteTree::class); $list = SiteTree::get();
static Injectable
singleton(string $class = null)
Creates a class instance by the "singleton" design pattern.
It will always return the same instance for this class, which can be used for performance reasons and as a simple way to access instance methods which don't rely on instance data (e.g. the custom SilverStripe static handling).
static Config_ForClass
config()
Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .....).
mixed
stat(string $name)
deprecated
deprecated
Get inherited config value
mixed
uninherited(string $name)
Gets the uninherited value for the given config option
$this
set_stat(string $name, mixed $value)
deprecated
deprecated
Update the config value for a given property
__construct(array $record = [], int|bool $creationType = self::CREATE_OBJECT, array $queryParams = [])
Construct a new DataObject.
bool
__isset(string $property)
Check if a field exists on this object or its failover.
Note that, unlike the core isset() implementation, this will return true if the property is defined and set to null.
mixed
__get(string $property)
Get the value of a property/field on this object. This will check if a method called get{$property} exists, then check if a field is available using ViewableData::getField(), then fall back on a failover object.
__set(string $property, mixed $value)
Set a property/field on this object. This will check for the existence of a method called set{$property}, then use the ViewableData::setField() method.
setFailover(ViewableData $failover)
Set a failover object to attempt to get data from if it is not present on this object.
ViewableData|null
getFailover()
Get the current failover object if set
bool
hasField(string $field)
Returns true if the given field exists in a database column on any of
the objects tables and optionally look up a dynamic getter with
get
mixed
getField(string $field)
Gets the value of a field.
Called by __get() and any getFieldName() methods you might create.
$this
setField(string $fieldName, mixed $val)
Set the value of the field Called by __set() and any setFieldName() methods you might create.
ViewableData_Customised
customise(array|ViewableData $data)
Merge some arbitrary data in with this object. This method returns a ViewableData_Customised instance with references to both this and the new custom data.
Note that any fields you specify will take precedence over the fields on this object.
bool
exists()
Returns true if this object "exists", i.e., has a sensible value.
The default behaviour for a DataObject is to return true if the object exists in the database, you can override this in subclasses.
string
__toString()
No description
ViewableData
getCustomisedObj()
No description
setCustomisedObj(ViewableData $object)
No description
string
castingHelper(string $field)
Return the "casting helper" (a piece of PHP code that when evaluated creates a casted value object) for a field on this object. This helper will be a subclass of DBField.
string
castingClass(string $field)
Get the class name a field on this object will be casted to.
string
escapeTypeForField(string $field)
Return the string-format type for the given field.
DBHTMLText
renderWith(string|array|SSViewer $template, array $customFields = null)
Render this object into the template, and get the result as a string. You can pass one of the following as the $template parameter:
- a template name (e.g. Page)
- an array of possible template names - the first valid one will be used
- an SSViewer instance
protected string
objCacheName(string $fieldName, array $arguments)
Generate the cache name for a field
protected mixed
objCacheGet(string $key)
Get a cached value from the field cache
protected $this
objCacheSet(string $key, mixed $value)
Store a value in the field cache
protected $this
objCacheClear()
Clear object cache
object|DBField
obj(string $fieldName, array $arguments = [], bool $cache = false, string $cacheName = null)
Get the value of a field on this object, automatically inserting the value into any available casting objects that have been specified.
object|DBField
cachedCall(string $field, array $arguments = [], string $identifier = null)
A simple wrapper around ViewableData::obj() that automatically caches the result so it can be used again without re-running the method.
bool
hasValue(string $field, array $arguments = null, bool $cache = true)
Returns true if the given method/parameter has a value (Uses the DBField::hasValue if the parameter is a database field)
string
XML_val(string $field, array $arguments = [], bool $cache = false)
Get the string value of a field on this object that has been suitable escaped to be inserted directly into a template.
array
getXMLValues(array $fields)
Get an array of XML-escaped values by field name
ArrayIterator
getIterator()
Return a single-item iterator so you can iterate over the fields of a single record.
This is useful so you can use a single record inside a <% control %> block in a template - and then use to access individual fields on this object.
array
getViewerTemplates(string $suffix = '')
Find appropriate templates for SSViewer to use to render this object
ViewableData
Me()
When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need access to itself.
string
ThemeDir()
deprecated
deprecated
Return the directory if the current active theme (relative to the site root).
This method is useful for things such as accessing theme images from your template without hardcoding the theme page - e.g. .
This method should only be used when a theme is currently active. However, it will fall over to the current project directory.
string
CSSClasses(string $stopAtClass = self::class)
Get part of the current classes ancestry to be used as a CSS class.
This method returns an escaped string of CSS classes representing the current classes ancestry until it hits a stop point - e.g. "Page DataObject ViewableData".
ViewableData_Debugger
Debug()
Return debug information about this object that can be rendered into a template
static DataObjectSchema
getSchema()
Get schema object
destroy()
Destroy all of this objects dependent objects and local caches.
You'll need to call this to get the memory of an object that has components or extensions freed.
DataObject
duplicate(bool $doWrite = true, array|null|false $relations = null)
Create a duplicate of this node. Can duplicate many_many relations
protected
duplicateRelations(DataObject $sourceObject, DataObject $destinationObject, array $relations)
Copies the given relations from this object to the destination
protected
duplicateManyManyRelations(DataObject $sourceObject, DataObject $destinationObject, bool|string $filter)
deprecated
deprecated
Copies the many_many and belongs_many_many relations from one object to another instance of the name of object.
protected
duplicateManyManyRelation(DataObject $sourceObject, DataObject $destinationObject, string $relation)
Duplicates a single many_many relation from one object to another.
protected
duplicateHasManyRelation(DataObject $sourceObject, DataObject $destinationObject, string $relation)
Duplicates a single many_many relation from one object to another.
protected
duplicateHasOneRelation(DataObject $sourceObject, DataObject $destinationObject, string $relation)
Duplicates a single has_one relation from one object to another.
Note: Child object will be force written.
protected
duplicateBelongsToRelation(DataObject $sourceObject, DataObject $destinationObject, string $relation)
Duplicates a single belongs_to relation from one object to another.
Note: This will force a write on both parent / child objects.
string
getObsoleteClassName()
Return obsolete class name, if this is no longer a valid class
string
getClassName()
Gets name of this class
$this
setClassName(string $className)
Set the ClassName attribute. $class is also updated.
Warning: This will produce an inconsistent record, as the object instance will not automatically switch to the new subclass. Please use newClassInstance() for this purpose, or destroy and reinstanciate the record.
DataObject
newClassInstance(string $newClassName)
Create a new instance of a different class from this object's record.
This is useful when dynamically changing the type of an instance. Specifically, it ensures that the instance of the class is a match for the className of the record. Don't set the DataObject->class} or {@link DataObject->ClassName property manually before calling this method, as it will confuse change detection.
If the new class is different to the original class, defaults are populated again because this will only occur automatically on instantiation of a DataObject if there is no record, or the record has no ID. In this case, we do have an ID but we still need to repopulate the defaults.
bool
isEmpty()
Returns TRUE if all values (other than "ID") are considered empty (by weak boolean comparison).
string
i18n_pluralise(string $count)
Pluralise this item given a specific count.
E.g. "0 Pages", "1 File", "3 Images"
string
singular_name()
Get the user friendly singular name of this DataObject.
If the name is not defined (by redefining $singular_name in the subclass), this returns the class name.
string
i18n_singular_name()
Get the translated user friendly singular name of this DataObject same as singular_name() but runs it through the translating function
Translating string is in the form: $this->class.SINGULARNAME Example: Page.SINGULARNAME
string
plural_name()
Get the user friendly plural name of this DataObject If the name is not defined (by renaming $plural_name in the subclass), this returns a pluralised version of the class name.
string
i18n_plural_name()
Get the translated user friendly plural name of this DataObject Same as plural_name but runs it through the translation function Translation string is in the form: $this->class.PLURALNAME Example: Page.PLURALNAME
string
getTitle()
Standard implementation of a title/label for a specific record. Tries to find properties 'Title' or 'Name', and falls back to the 'ID'. Useful to provide user-friendly identification of a record, e.g. in errormessages or UI-selections.
Overload this method to have a more specialized implementation, e.g. for an Address record this could be:
function getTitle() {
return "{$this->StreetNumber} {$this->StreetName} {$this->City}";
}
DataObject
data()
Returns the associated database record - in this case, the object itself.
This is included so that you can call $dataOrController->data() and get a DataObject all the time.
array
toMap()
Convert this object to a map.
Note that it has the following quirks:
- custom getters, including those that adjust the result of database fields, won't be executed
- NULL values won't be returned.
array
getQueriedDatabaseFields()
Return all currently fetched database fields.
This function is similar to toMap() but doesn't trigger the lazy-loading of all unfetched fields. Obviously, this makes it a lot faster.
DataObject
update(array $data)
Update a number of fields on this object, given a map of the desired changes.
The field names can be simple names, or you can use a dot syntax to access $has_one relations. For example, array("Author.FirstName" => "Jim") will set $this->Author()->FirstName to "Jim".
Doesn't write the main object, but if you use the dot syntax, it will write() the related objects that it alters.
When using this method with user supplied data, it's very important to whitelist the allowed keys.
DataObject
castedUpdate(array $data)
Pass changes as a map, and try to get automatic casting for these fields.
Doesn't write to the database. To write the data, use the write() method.
bool
merge(DataObject $rightObj, string $priority = 'right', bool $includeRelations = true, bool $overwriteWithEmpty = false)
Merges data and relations from another object of same class, without conflict resolution. Allows to specify which dataset takes priority in case its not empty.
has_one-relations are just transferred with priority 'right'. has_many and many_many-relations are added regardless of priority.
Caution: has_many/many_many relations are moved rather than duplicated, meaning they are not connected to the merged object any longer. Caution: Just saves updated has_many/many_many relations to the database, doesn't write the updated object itself (just writes the object-properties). Caution: Does not delete the merged object. Caution: Does now overwrite Created date on the original object.
$this
forceChange()
Forces the record to think that all its data has changed.
Doesn't write to the database. Force-change preserved until next write. Existing CHANGE_VALUE or CHANGE_STRICT values are preserved.
ValidationResult
validate()
Validate the current object.
By default, there is no validation - objects are always valid! However, you can overload this method in your DataObject sub-classes to specify custom validation, or use the hook through DataExtension.
Invalid objects won't be able to be written - a warning will be thrown and no write will occur. onBeforeWrite() and onAfterWrite() won't get called either.
It is expected that you call validate() in your own application to test that an object is valid before attempting a write, and respond appropriately if it isn't.
ValidationResult
doValidate()
deprecated
deprecated
Public accessor for {DataObject::validate()}
onBeforeWrite()
Event handler called before writing to the database.
You can overload this to clean up or otherwise process data before writing it to the database. Don't forget to call parent::onBeforeWrite(), though!
This called after $this->validate(), so you can be sure that your data is valid.
protected
onAfterWrite()
Event handler called after writing to the database.
You can overload this to act upon changes made to the data after it is written. $this->changed will have a record database. Don't forget to call parent::onAfterWrite(), though!
ArrayList
findCascadeDeletes(bool $recursive = true, ArrayList $list = null)
Find all objects that will be cascade deleted if this object is deleted
Notes:
- If this object is versioned, objects will only be searched in the same stage as the given record.
- This will only be useful prior to deletion, as post-deletion this record will no longer exist.
protected
onBeforeDelete()
Event handler called before deleting from the database.
You can overload this to clean up or otherwise process data before delete this record. Don't forget to call parent::onBeforeDelete(), though!
protected
onAfterDelete()
No description
DataObject
populateDefaults()
Load the default values in from the self::$defaults array.
Will traverse the defaults of the current class and all its parent classes. Called by the constructor when creating new records.
protected ValidationException
validateWrite()
Determine validation of this object prior to write
protected
preWrite()
Prepare an object prior to write
protected bool
updateChanges(bool $forceChanges = false)
Detects and updates all changes made to this object
protected
prepareManipulationTable(string $baseTable, string $now, bool $isNewRecord, array $manipulation, string $class)
Writes a subset of changes for a specific table to the given manipulation
protected
writeBaseRecord(string $baseTable, string $now)
Ensures that a blank base record exists with the basic fixed fields for this dataobject
Does nothing if an ID is already assigned for this record
protected
writeManipulation(string $baseTable, string $now, bool $isNewRecord)
Generate and write the database manipulation for all changed fields
write(bool $showDebug = false, bool $forceInsert = false, bool $forceWrite = false, bool|array $writeComponents = false)
Writes all changes to this object to the database.
- It will insert a record whenever ID isn't set, otherwise update.
- All relevant tables will be updated.
- $this->onBeforeWrite() gets called beforehand.
- Extensions such as Versioned will amend the database-write to ensure that a version is saved.
writeRelations()
Writes cached relation lists to the database, if possible
DataObject
writeComponents(bool $recursive = false, array $skip = [])
Write the cached components to the database. Cached components could refer to two different instances of the same record.
delete()
Delete this data object.
$this->onBeforeDelete() gets called. Note that in Versioned objects, both Stage and Live will be deleted.
static
delete_by_id(string $className, int $id)
Delete the record with the given ID.
array
getClassAncestry()
Get the class ancestry, including the current class name.
The ancestry will be returned as an array of class names, where the 0th element will be the class that inherits directly from DataObject, and the last element will be the current class.
DataObject
getComponent(string $componentName)
Return a unary component object from a one to one relationship, as a DataObject.
If no component is available, an 'empty component' will be returned for non-polymorphic relations, or for polymorphic relations with a class set.
$this
setComponent(string $componentName, DataObject|null $item)
Assign an item to the given component
HasManyList|UnsavedRelationList
getComponents(string $componentName, int|array $id = null)
Returns a one-to-many relation as a HasManyList
string
getRelationClass(string $relationName)
Find the foreign class of a relation on this DataObject, regardless of the relation type.
string
getRelationType(string $component)
Given a relation name, determine the relation type
DataList|DataObject
inferReciprocalComponent(string $remoteClass, string $remoteRelation)
Given a relation declared on a remote class, generate a substitute component for the opposite side of the relation.
Notes on behaviour:
- This can still be used on components that are defined on both sides, but do not need to be.
- All has_ones on remote class will be treated as local has_many, even if they are belongs_to
- Polymorphic relationships do not have two natural endpoints (only on one side) and thus attempting to infer them will return nothing.
- Cannot be used on unsaved objects.
ManyManyList|UnsavedRelationList
getManyManyComponents(string $componentName, int|array $id = null)
Returns a many-to-many component, as a ManyManyList.
string|array
hasOne()
Return the class of a one-to-one component. If $component is null, return all of the one-to-one components and their classes. If the selected has_one is a polymorphic field then 'DataObject' will be returned for the type.
string|array
belongsTo(bool $classOnly = true)
Returns the class of a remote belongs_to relationship. If no component is specified a map of all components and their class name will be returned.
string|array|false
hasMany(bool $classOnly = true)
Gets the class of a one-to-many relationship. If no $component is specified then an array of all the one-to-many relationships and their classes will be returned.
array|null
manyManyExtraFields()
Return the many-to-many extra fields specification.
If you don't specify a component name, it returns all extra fields for all components available.
array|null
manyMany()
Return information about a many-to-many component.
The return value is an array of (parentclass, childclass). If $component is null, then all many-many components are returned.
array|false
database_extensions(string $class)
This returns an array (if it exists) describing the database extensions that are required, or false if none
This is experimental, and is currently only a Postgres-specific enhancement.
SearchContext
getDefaultSearchContext()
Generates a SearchContext to be used for building and processing a generic search form for properties on this object.
string
getGeneralSearchFieldName()
Name of the field which is used as a stand-in for searching across all searchable fields.
If this is a blank string, general search functionality is disabled and the general search field falls back to using the first field in the searchable fields array.
FieldList
scaffoldSearchFields(array $_params = null)
Determine which properties on the DataObject are searchable, and map them to their default FormField representations. Used for scaffolding a searchform for ModelAdmin.
Some additional logic is included for switching field labels, based on how generic or specific the field type is.
Used by SearchContext.
FieldList
scaffoldFormFields(array $_params = null)
Scaffold a simple edit form for all properties on this dataobject, based on default FormField} mapping in {@link DBField::scaffoldFormField().
Field labels/titles will be auto generated from DataObject::fieldLabels().
protected
beforeUpdateCMSFields(callable $callback)
Allows user code to hook into DataObject::getCMSFields prior to updateCMSFields being called on extensions
protected
afterUpdateCMSFields(callable $callback)
Allows user code to hook into DataObject::getCMSFields after updateCMSFields being called on extensions
FieldList
getCMSFields()
Centerpiece of every data administration interface in Silverstripe, which returns a FieldList} suitable for a {@link Form object.
If not overloaded, we're using scaffoldFormFields() to automatically generate this set. To customize, overload this method in a subclass or extended onto it by using DataExtension->updateCMSFields().
class MyCustomClass extends DataObject {
static $db = array('CustomProperty'=>'Boolean');
function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab('Root.Content',new CheckboxField('CustomProperty'));
return $fields;
}
}
FieldList
getCMSActions()
need to be overload by solid dataobject, so that the customised actions of that dataobject, including that dataobject's extensions customised actions could be added to the EditForm.
CompositeValidator
getCMSCompositeValidator()
When extending this class and overriding this method, you will need to instantiate the CompositeValidator by calling parent::getCMSCompositeValidator(). This will ensure that the appropriate extension point is also invoked.
You can also update the CompositeValidator by creating an Extension and implementing the updateCMSCompositeValidator(CompositeValidator $compositeValidator) method.
FieldList
getFrontEndFields(array $params = null)
Used for simple frontend forms without relation editing or TabSet} behaviour. Uses {@link scaffoldFormFields() by default. To customize, either overload this method in your subclass, or extend it by DataExtension->updateFrontEndFields().
protected bool
loadLazyFields(string $class = null)
Loads all the stub fields that an initial lazy load didn't load fully.
array
getChangedFields(bool|array $databaseFieldsOnly = false, int $changeLevel = self::CHANGE_STRICT)
Return the fields that have changed since the last write.
The change level affects what the functions defines as "changed":
- Level CHANGE_STRICT (integer 1) will return strict changes, even !== ones.
- Level CHANGE_VALUE (integer 2) is more lenient, it will only return real data changes, for example a change from 0 to null would not be included.
Example return:
array(
'Title' = array('before' => 'Home', 'after' => 'Home-Changed', 'level' => DataObject::CHANGE_VALUE)
)
bool
isChanged(string $fieldName = null, int $changeLevel = self::CHANGE_STRICT)
Uses getChangedFields() to determine if fields have been changed since loading them from the database.
$this
setCastedField(string $fieldName, mixed $value)
Set the value of the field, using a casting object.
This is useful when you aren't sure that a date is in SQL format, for example. setCastedField() can also be used, by forms, to set related data. For example, uploaded images can be saved into the Image table.
bool
hasDatabaseField(string $field)
Returns true if the given field exists as a database column
bool
can(string $perm, Member $member = null, array $context = [])
Default permissions for this ChangeSetItem
bool|null
extendedCan(string $methodName, Member|int $member, array $context = [])
Process tri-state responses from permission-alterting extensions. The extensions are expected to return one of three values:
- false: Disallow this permission, regardless of what other extensions say
- true: Allow this permission, as long as no other extensions return false
- NULL: Don't affect the outcome
This method itself returns a tri-state value, and is designed to be used like this:
$extended = $this->extendedCan('canDoSomething', $member);
if ($extended !== null) return $extended;
else return $normalValue;
bool
canView(Member $member = null)
No description
bool
canEdit(Member $member = null)
No description
bool
canDelete(Member $member = null)
No description
bool
canCreate(Member $member = null, array $context = [])
No description
string
debug()
Debugging used by Debug::show()
DBField
dbObject(string $fieldName)
Return the DBField object that represents the given field.
This works similarly to obj() with 2 key differences:
- it still returns an object even when the field has no value.
- it only matches fields and not methods
- it matches foreign keys generated by has_one relationships, eg, "ParentID"
mixed
relObject(string $fieldPath)
Traverses to a DBField referenced by relationships between data objects.
The path to the related field is specified with dot separated syntax (eg: Parent.Child.Child.FieldName).
If a relation is blank, this will return null instead. If a relation name is invalid (e.g. non-relation on a parent) this can throw a LogicException.
mixed
relField(string $fieldName)
Traverses to a field referenced by relationships between data objects, returning the value The path to the related field is specified with dot separated syntax (eg: Parent.Child.Child.FieldName)
string
getReverseAssociation(string $className)
Temporary hack to return an association name, based on class, to get around the mangle of having to deal with reverse lookup of relationships to determine autogenerated foreign keys.
static DataList
get(string $callerClass = null, string|array $filter = "", string|array $sort = "", string $join = "", string|array $limit = null, string $containerClass = DataList::class)
Return all objects matching the filter sub-classes are automatically selected and included
static DataObject|null
get_one(string $callerClass, string|array $filter = "", bool $cache = true, string $orderby = "")
Return the first item matching the given query.
The object returned is cached, unlike DataObject::get()->first() DataList::first() and DataObject::get()->last() DataList::last()
The filter argument supports parameterised queries (see SQLSelect::addWhere() for syntax examples). Because of that (and differently from e.g. DataList::filter()) you need to manually escape the field names:
$member = DataObject::get_one('Member', [ '"FirstName"' => 'John' ]);
DataObject
flushCache(bool $persistent = true)
Flush the cached results for all relations (has_one, has_many, many_many) Also clears any cached aggregate data.
static
flush_and_destroy_cache()
Flush the get_one global cache and destroy associated objects.
static
reset()
Reset all global caches associated with DataObject.
static DataObject|null
get_by_id(string|int $classOrID, int|bool $idOrCache = null, bool $cache = true)
Return the given element, searching by ID.
This can be called either via DataObject::get_by_id(MyClass::class, $id)
or MyClass::get_by_id($id)
The object returned is cached, unlike DataObject::get()->byID() DataList::byID()
string
baseTable()
Get the name of the base table for this object
string
baseClass()
Get the base class for this object
array
getSourceQueryParams()
No description
array
getInheritableQueryParams()
Get list of parameters that should be inherited to relations on this object
setSourceQueryParams(array $array)
No description
setSourceQueryParam(string $key, string $value)
No description
string
getSourceQueryParam(string $key)
No description
requireTable()
Check the database schema and update it as necessary.
requireDefaultRecords()
Add default records to database. This function is called whenever the database is built, after the database tables have all been created. Overload this to add default records when the database is built, but make sure you call parent::requireDefaultRecords().
onAfterBuild()
Invoked after every database build is complete (including after table creation and default record population).
See DatabaseAdmin::doBuild() for context.
array
searchableFields()
Get the default searchable fields for this object, as defined in the $searchable_fields list. If searchable fields are not defined on the data object, uses a default selection of summary fields.
array
fieldLabels(bool $includerelations = true)
Get any user defined searchable fields labels that exist. Allows overriding of default field names in the form interface actually presented to the user.
The reason for keeping this separate from searchable_fields, which would be a logical place for this functionality, is to avoid bloating and complicating the configuration array. Currently much of this system is based on sensible defaults, and this property would generally only be set in the case of more complex relationships between data object being required in the search interface.
Generates labels based on name of the field itself, if no static property self::field_labels exists.
string
fieldLabel(string $name)
Get a human-readable label for a single field, see fieldLabels() for more details.
array
summaryFields()
Get the default summary fields for this object.
array
defaultSearchFilters()
Defines a default list of filters for the search context.
If a filter class mapping is defined on the data object, it is constructed here. Otherwise, the default filter specified in DBField is used.
bool
isInDB()
No description
static
disable_subclass_access()
Temporarily disable subclass access in data object qeur
static
enable_subclass_access()
No description
array
provideI18nEntities()
Returns the list of provided translations for this object.
Note: Pluralised forms are always returned in array format.
Example usage:
class MyTestClass implements i18nEntityProvider
{
public function provideI18nEntities()
{
$entities = [];
foreach($this->config()->get('my_static_array') as $key => $value) {
$entities["MyTestClass.my_static_array_{$key}"] = $value;
}
$entities["MyTestClass.PLURALS"] = [
'one' => 'A test class',
'other' => '{count} test classes',
]
return $entities;
}
}
Example usage in DataObject->provideI18nEntities().
You can ask textcollector to add the provided entity to a different module. Simply wrap the returned value for any item in an array with the format: [ 'default' => $defaultValue, 'module' => $module ]
class MyTestClass implements i18nEntityProvider
{
public function provideI18nEntities()
{
$entities = [
'MyOtherModuleClass.MYENTITY' => [
'default' => $value,
'module' => 'myothermodule',
]
];
}
return $entities;
}
DataObject
getJoin()
If selected through a many_many through relation, this is the instance of the joined record
$this
setJoin(DataObject $object, string $alias = null)
Set joining object
ArrayList
findRelatedObjects(string $source, bool $recursive = true, ArrayList $list = null)
Find objects in the given relationships, merging them into the given list
ArrayList
mergeRelatedObjects(ArrayList $list, mixed $items)
Helper method to merge owned/owning items into a list.
Items already present in the list will be skipped.
string
getUniqueKey()
Generate a unique key for data object the unique key uses the DataObject::getUniqueKeyComponents() extension point so unique key modifiers such as versioned or fluent are covered i.e. same data object in different stages or different locales will produce different unique key
recommended use:
- when you need unique key for caching purposes
- when you need unique id on the front end (for example JavaScript needs to target specific element)
protected
mergeRelatedObject(ArrayList $list, ArrayList $added, DataObject $item)
Merge single object into a list, but ensures that existing objects are not re-added.
string
ThumbnailURL(int $width, int $height)
Get a thumbnail for this object
string
getChangeType()
Get the type of change: none, created, deleted, modified, manymany
protected DataObject|Versioned|RecursivePublishable
getObjectInStage(string $stage)
Find version of this object in the given stage.
If the object isn't versioned it will return the normal record.
protected DataObject|Versioned
getObjectLatestVersion()
Find latest version of this object
SS_List
findReferenced()
Get all implicit objects for this change
publish()
Publish this item, then close it.
Note: Unlike Versioned::doPublish() and Versioned::doUnpublish, this action is not recursive.
unlinkDisownedObjects()
Once this item (and all owned objects) are published, unlink all disowned objects
revert()
Reverts this item, then close it. *
bool
canRevert(Member $member)
Check if the BeforeVersion of this changeset can be restored to draft
bool
canPublish(Member $member = null)
Check if this ChangeSetItem can be published
bool
hasChange()
Determine if this item has changes
static DataList
get_for_object(DataObject $object)
Get the ChangeSetItems that reference a passed DataObject
static DataList
get_for_object_by_id(int $objectID, string $objectClass)
Get the ChangeSetItems that reference a passed DataObject
array
getPreviewLinks()
Gets the list of modes this record can be previewed in.
https://tools.ietf.org/html/draft-kelly-json-hal-07#section-5
string
CMSEditLink()
Get edit link for this item
bool
isVersioned()
Check if the object attached to this changesetitem is versionable
ManyManyList
ReferencedBy()
List of explicit items that require this change
ManyManyList
References()
List of implicit items required by this change
ChangeSet
ChangeSet()
Parent changeset
DataObject
Object()
The object attached to this item