class UnsavedRelationList extends ArrayList (View source)

An ArrayList that represents an unsaved relation.

has_many and many_many relations cannot be saved until after the DataObject they're on has been written. This List pretends to be a RelationList and stores the related objects in memory.

It can store both saved objects (as IDs) or unsaved objects (as instances of $dataClass). Unsaved objects are then written when the list is saved into an instance of RelationList.

Properties

public string $class from  SS_Object
protected array $extension_instances from  SS_Object
protected $beforeExtendCallbacks

List of callbacks to call prior to extensions having extend called on them, each grouped by methodName.

from  SS_Object
protected $afterExtendCallbacks

List of callbacks to call after extensions having extend called on them, each grouped by methodName.

from  SS_Object
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
protected array $items

Holds the items in the list

from  ArrayList
protected string $baseClass

The DataObject class name that this relation is on

protected string $relationName

The name of the relation

protected string $dataClass

The DataObject class name that this relation is querying

protected array $extraFields

The extra fields associated with the relation

Methods

public static 
config()

Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .....).

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.

public static 
create()

An implementation of the factory method, allows you to create an instance of a class

public static 
singleton()

Creates a class instance by the "singleton" design pattern.

public static 
create_from_string($classSpec, $firstArg = null)

Create an object from a string representation. It treats it as a PHP constructor without the 'new' keyword. It also manages to construct the object without the use of eval().

public static 
parse_class_spec($classSpec)

Parses a class-spec, such as "Versioned('Stage','Live')", as passed to create_from_string().

public static 
strong_create()

Similar to Object::create(), except that classes are only overloaded if you set the $strong parameter to TRUE when using Object::useCustomClass()

public static 
useCustomClass(string $oldClass, string $newClass, bool $strong = false)

This class allows you to overload classes with other classes when they are constructed using the factory method Object::create()

public static 
string
getCustomClass(string $class)

If a class has been overloaded, get the class name it has been overloaded with - otherwise return the class name

public static 
any
static_lookup($class, $name, null $default = null)

Get the value of a static property of a class, even in that property is declared protected (but not private), without any inheritance, merging or parent lookup if it doesn't exist on the given class.

public static 
get_static($class, $name, $uncached = false) deprecated

No description

public static 
set_static($class, $name, $value) deprecated

No description

public static 
uninherited_static($class, $name, $uncached = false) deprecated

No description

public static 
combined_static($class, $name, $ceiling = false) deprecated

No description

public static 
addStaticVars($class, $properties, $replace = false) deprecated

No description

public static 
add_static_var($class, $name, $value, $replace = false) deprecated

No description

public static 
has_extension(string $classOrExtension, string $requiredExtension = null, bool $strict = false)

Return TRUE if a class has a specified extension.

public static 
add_extension(string $classOrExtension, string $extension = null)

Add an extension to a specific class.

public static 
remove_extension(string $extension)

Remove an extension from a class.

public static 
array
get_extensions(string $class, bool $includeArgumentString = false)

No description

public static 
get_extra_config_sources($class = null)

No description

public
__construct(array $baseClass, string $relationName, string $dataClass)

Create a new UnsavedRelationList

public
mixed
__call(string $method, array $arguments)

Attemps to locate and call a method dynamically added to a class at runtime if a default cannot be located

public
bool
hasMethod(string $method)

Return TRUE if a method exists on this object

public
array
allMethodNames(bool $custom = false)

Return the names of all the methods available on this object

public
defineMethods()

Add methods from the ViewableData::$failover object, as well as wrapping any methods prefixed with an underscore into a ViewableData::cachedCall().

protected
array
findMethodsFromExtension(object $extension)

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
createMethod(string $method, string $code)

Add an extra method using raw PHP code passed as a string

public
stat($name, $uncached = false)

No description

public
set_stat($name, $value)

No description

public
uninherited($name)

No description

public
bool
exists()

Returns true if this list has items

public
string
parentClass()

No description

public
bool
is_a(string $class)

Check if this class is an instance of a specific class, or has that class as one of its parents

public
string
__toString()

No description

public
mixed
invokeWithExtensions(string $method, mixed $argument = null)

Calls a method if available on both this object and all applied Extensions, and then attempts to merge all results into an array

public
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

public
getExtensionInstance(string $extension)

Get an extension instance attached to this object by name.

public
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.

public
array
getExtensionInstances()

Get all extension instances for this specific object instance.

public
mixed
cacheToFile(string $method, int $lifetime = 3600, string $ID = false, array $arguments = array())

Cache the results of an instance method in this object to a file, or if it is already cache return the cached results

public
clearCache($method, $ID = false, $arguments = array())

Clears the cache for the given cacheToFile call

protected
mixed
loadCache(string $cache, int $lifetime = 3600)

Loads a cache from the filesystem if a valid on is present and within the specified lifetime

protected
saveCache(string $cache, mixed $data)

Save a piece of cached data to the file system

protected
string
sanitiseCachename(string $name)

Strip a file name of special characters so it is suitable for use as a cache file name

public static 
string
castingObjectCreator(string $fieldSchema)

Converts a field spec into an object creator. For example: "Int" becomes "new Int($fieldName);" and "Varchar(50)" becomes "new Varchar($fieldName, 50);".

public static 
array
castingObjectCreatorPair(string $fieldSchema)

Convert a field schema (e.g. "Varchar(50)") into a casting object creator array that contains both a className and castingHelper constructor code. See castingObjectCreator for more information about the constructor.

public
bool
__isset(string $property)

Check if a field exists on this object or its failover.

public
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.

public
__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.

public
setFailover(ViewableData $failover)

Set a failover object to attempt to get data from if it is not present on this object.

public
getFailover()

Get the current failover object if set

public
bool
hasField(string $field)

Check if a field exists on this object. This should be overloaded in child classes.

public
mixed
getField(string $field)

Get the value of a field on this object. This should be overloaded in child classes.

public
setField(string $field, mixed $value)

Set a field on this object. This should be overloaded in child classes.

public
unknown
deprecatedCachedCall($method, $args = null, string $identifier = null)

Method to facilitate deprecation of underscore-prefixed methods automatically being cached.

public
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.

public
getCustomisedObj()

No description

public
setCustomisedObj(ViewableData $object)

No description

public
array
castingHelperPair(string $field)

Get the class a field on this object would be casted to, as well as the casting helper for casting a field to an object (see ViewableData::castingHelper() for information on casting helpers).

public
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.

public
string
castingClass(string $field)

Get the class name a field on this object will be casted to

public
string
escapeTypeForField(string $field)

Return the string-format type for the given field.

public
buildCastingCache(reference $cache)

Save the casting cache for this object (including data from any failovers) into a variable

public
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
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
objCacheSet(string $key, mixed $value)

Store a value in the field cache

public
obj(string $fieldName, array $arguments = null, bool $forceReturnedObject = true, 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.

public
cachedCall(string $field, array $arguments = null, 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.

public
bool
hasValue(string $field, array $arguments = null, bool $cache = true)

Checks if a given method/field has a valid value. If the result is an object, this will return the result of the exists method, otherwise will check if the result is not just an empty paragraph tag.

public
XML_val($field, $arguments = null, $cache = false)

Get the string value of a field on this object that has been suitable escaped to be inserted directly into a template.

public
RAW_val($field, $arguments = null, $cache = true)

Return the value of the field without any escaping being applied.

public
SQL_val($field, $arguments = null, $cache = true)

Return the value of a field in an SQL-safe format.

public
JS_val($field, $arguments = null, $cache = true)

Return the value of a field in a JavaScript-save format.

public
ATT_val($field, $arguments = null, $cache = true)

Return the value of a field escaped suitable to be inserted into an XML node attribute.

public
array
getXMLValues($fields)

Get an array of XML-escaped values by field name

public
getIterator()

Returns an Iterator for this relation.

public
Me()

When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need access to itself.

public
string
ThemeDir(string $subtheme = false)

Return the directory if the current active theme (relative to the site root).

public
string
CSSClasses(string $stopAtClass = 'ViewableData')

Get part of the current classes ancestry to be used as a CSS class.

public
Debug()

Return debug information about this object that can be rendered into a template

public
dataClass()

Get the dataClass name for this relation, ie the DataObject ClassName

public
int
count()

Return the number of items in this list

public
array
toArray()

Return an array of the actual items that this relation contains at this stage.

public
mixed
each(callable $callback)

Walks the list using the specified callback

public
debug()

No description

public
array
toNestedArray()

Return this list as an array and every object it as an sub array as well

public
limit(int $length, $offset = 0)

Get a sub-range of this dataobjectset as an array

public
add(mixed $item, array $extraFields = null)

Add an item to this relationship

public
remove(mixed $item)

Remove this item from this list

public
replace(array|object $item, array|object $with)

Replaces an item in this list with another item.

public
merge(array|object $with)

Merges with another array or list by pushing all the items in it onto the end of this list.

public
removeDuplicates(string $field = 'ID')

Removes items from this list which are equal.

public
push(array|object $item, array $extraFields = null)

Pushes an item onto the end of this list.

public
array|object
pop()

Pops the last element off the end of the list and returns it.

public
unshift(array|object $item)

Add an item onto the beginning of the list.

public
array|object
shift()

Shifts the item off the beginning of the list and returns it.

public
mixed
first()

Returns the first item in the list

public
mixed
last()

Returns the last item in the list

public
array
map(string $keyfield = 'ID', string $titlefield = 'Title')

Returns a map of this list

public
mixed
find(string $key, mixed $value)

Find the first item of this list where the given key = value

public
array
column(string $colName = 'ID')

Returns an array of a single field value for all items in the list.

public
bool
canSortBy(string $by)

Returns true if the given column can be used to sort the records.

public
reverse()

Reverses an ArrayList

protected
array
parseSortColumn(string $column, string $direction = null)

Parses a specified column into a sort field and direction

public
sort()

Sorts this list by one or more fields. You can either pass in a single field name and direction, or a map of field names to sort directions.

public
bool
canFilterBy(string $by)

Returns true if the given column can be used to filter the records.

public
filter()

Filter the list to include items with these charactaristics

public
filterAny()

Return a copy of this list which contains items matching any of these charactaristics.

protected
array
normaliseFilterArgs($column, $value = null)

Take the "standard" arguments that the filter/exclude functions take and return a single array with 'colum' => 'value'

public
byIDs(array $ids)

Filter this list to only contain the given Primary IDs

public
byID($id)

No description

public
filterByCallback($callback)

No description

public
exclude()

Exclude the list to not contain items with these charactaristics

protected
shouldExclude($item, $args)

No description

public
bool
offsetExists($offset)

Returns whether an item with $key exists

public
offsetGet($offset)

Returns item stored in list with index $key

public
offsetSet($offset, mixed $value)

Set an item with the key in $key

public
offsetUnset($offset)

Unset an item with the key in $key

protected
mixed
extractValue(array|object $item, string $key)

Extracts a value from an item in the list, where the item is either an object or array.

public
changeToList(RelationList $list)

Save all the items in this list into the RelationList

public
addMany(array $items)

Add a number of items to the relation.

public
removeAll()

Remove all items from this relation.

public
$this
removeMany(array $items)

Remove the items from this list with the given IDs

public
setByIDList(array $idList)

Sets the Relation to be the given ID list.

public
array
getIDList()

Returns an array with both the keys and values set to the IDs of the records in this list.

public
forForeignID(int|array $id)

Returns a copy of this list with the relationship linked to the given foreign ID.

public
dbObject(string $fieldName)

Return the DBField object that represents the given field on the related class.

Details

static Config_ForClass|null config()

Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .....).

Return Value

Config_ForClass|null

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.

Parameters

string $method

The name of the method to hook into

callable $callback

The callback to execute

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.

Parameters

string $method

The name of the method to hook into

callable $callback

The callback to execute

static SS_Object create()

An implementation of the factory method, allows you to create an instance of a class

This method first for strong class overloads (singletons & DB interaction), then custom class overloads. If an overload is found, an instance of this is returned rather than the original class. To overload a class, use Object::useCustomClass()

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'); $list = SiteTree::get();

Return Value

SS_Object

static SS_Object singleton()

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).

Return Value

SS_Object

The singleton instance

static create_from_string($classSpec, $firstArg = null)

Create an object from a string representation. It treats it as a PHP constructor without the 'new' keyword. It also manages to construct the object without the use of eval().

Construction itself is done with Object::create(), so that Object::useCustomClass() calls are respected.

Object::create_from_string("Versioned('Stage','Live')") will return the result of Versioned::create('Stage', 'Live);

It is designed for simple, clonable objects. The first time this method is called for a given string it is cached, and clones of that object are returned.

If you pass the $firstArg argument, this will be prepended to the constructor arguments. It's impossible to pass null as the firstArg argument.

Object::create_from_string("Varchar(50)", "MyField") will return the result of Vachar::create('MyField', '50');

Arguments are always strings, although this is a quirk of the current implementation rather than something that can be relied upon.

Parameters

$classSpec
$firstArg

static parse_class_spec($classSpec)

Parses a class-spec, such as "Versioned('Stage','Live')", as passed to create_from_string().

Returns a 2-elemnent array, with classname and arguments

Parameters

$classSpec

static SS_Object strong_create()

Similar to Object::create(), except that classes are only overloaded if you set the $strong parameter to TRUE when using Object::useCustomClass()

Return Value

SS_Object

static useCustomClass(string $oldClass, string $newClass, bool $strong = false)

This class allows you to overload classes with other classes when they are constructed using the factory method Object::create()

Parameters

string $oldClass

the class to replace

string $newClass

the class to replace it with

bool $strong

allows you to enforce a certain class replacement under all circumstances. This is used in singletons and DB interaction classes

static string getCustomClass(string $class)

If a class has been overloaded, get the class name it has been overloaded with - otherwise return the class name

Parameters

string $class

the class to check

Return Value

string

the class that would be created if you called Object::create() with the class

static any static_lookup($class, $name, null $default = null)

Get the value of a static property of a class, even in that property is declared protected (but not private), without any inheritance, merging or parent lookup if it doesn't exist on the given class.

Parameters

$class
  • The class to get the static from
$name
  • The property to get from the class
null $default
  • The value to return if property doesn't exist on class

Return Value

any
  • The value of the static property $name on class $class, or $default if that property is not defined

static get_static($class, $name, $uncached = false) deprecated

deprecated

No description

Parameters

$class
$name
$uncached

static set_static($class, $name, $value) deprecated

deprecated

No description

Parameters

$class
$name
$value

static uninherited_static($class, $name, $uncached = false) deprecated

deprecated

No description

Parameters

$class
$name
$uncached

static combined_static($class, $name, $ceiling = false) deprecated

deprecated

No description

Parameters

$class
$name
$ceiling

static addStaticVars($class, $properties, $replace = false) deprecated

deprecated

No description

Parameters

$class
$properties
$replace

static add_static_var($class, $name, $value, $replace = false) deprecated

deprecated

No description

Parameters

$class
$name
$value
$replace

static 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))

Parameters

string $classOrExtension

if 1 argument supplied, the class name of the extension to check for; if 2 supplied, the class name to test

string $requiredExtension

used only if 2 arguments supplied

bool $strict

if the extension has to match the required extension and not be a subclass

static 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()).

Parameters

string $classOrExtension

Class that should be extended - has to be a subclass of Object

string $extension

Subclass of Extension with optional parameters as a string, e.g. "Versioned" or "Translatable('Param')"

See also

http://doc.silverstripe.org/framework/en/trunk/reference/dataextension

static remove_extension(string $extension)

Remove an extension from a class.

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.

Add support for removing extensions with parameters

Parameters

string $extension

Classname of an Extension subclass, without parameters

static array get_extensions(string $class, bool $includeArgumentString = false)

No description

Parameters

string $class
bool $includeArgumentString

Include the argument string in the return array, FALSE would return array("Versioned"), TRUE returns array("Versioned('Stage','Live')").

Return Value

array

Numeric array of either DataExtension classnames, or eval'ed classname strings with constructor arguments.

static get_extra_config_sources($class = null)

No description

Parameters

$class

__construct(array $baseClass, string $relationName, string $dataClass)

Create a new UnsavedRelationList

Parameters

array $baseClass
string $relationName
string $dataClass

The DataObject class used in the relation

mixed __call(string $method, array $arguments)

Attemps 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()

Parameters

string $method
array $arguments

Return Value

mixed

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

Parameters

string $method

Return Value

bool

array allMethodNames(bool $custom = false)

Return the names of all the methods available on this object

Parameters

bool $custom

include methods added dynamically at runtime

Return Value

array

defineMethods()

Add methods from the ViewableData::$failover object, as well as wrapping any methods prefixed with an underscore into a ViewableData::cachedCall().

protected array findMethodsFromExtension(object $extension)

No description

Parameters

object $extension

Return Value

array

protected addMethodsFrom(string $property, string|int $index = null)

Add all the methods from an object property (which is an Extension) to this object.

Parameters

string $property

the property name

string|int $index

an index to use if the property is an array

protected removeMethodsFrom(string $property, string|int $index = null)

Add all the methods from an object property (which is an Extension) to this object.

Parameters

string $property

the property name

string|int $index

an index to use if the property is an array

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)

Parameters

string $method

the method name to wrap

string $wrap

the method name to wrap to

protected createMethod(string $method, string $code)

Add an extra method using raw PHP code passed as a string

Parameters

string $method

the method name

string $code

the PHP code - arguments will be in an array called $args, while you can access this object by using $obj. Note that you cannot call protected methods, as the method is actually an external function

stat($name, $uncached = false)

No description

Parameters

$name
$uncached

See also

SS_Object::get_static

set_stat($name, $value)

No description

Parameters

$name
$value

See also

SS_Object::set_static

uninherited($name)

No description

Parameters

$name

See also

SS_Object::uninherited_static

bool exists()

Returns true if this list has items

Return Value

bool

string parentClass()

No description

Return Value

string

this classes parent class

bool is_a(string $class)

Check if this class is an instance of a specific class, or has that class as one of its parents

Parameters

string $class

Return Value

bool

string __toString()

No description

Return Value

string

the class name

mixed invokeWithExtensions(string $method, mixed $argument = null)

Calls a method if available on both this object and all applied Extensions, and then attempts to merge all results into an array

integrate inheritance rules

Parameters

string $method

the method name to call

mixed $argument

a single argument to pass

Return Value

mixed

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().

Parameters

string $method

the name of the method to call on each extension

mixed $a1
mixed $a2
mixed $a3
mixed $a4
mixed $a5
mixed $a6
mixed $a7

Return Value

array

Extension getExtensionInstance(string $extension)

Get an extension instance attached to this object by name.

Parameters

string $extension

Return Value

Extension

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()->hasExtension() as it will give you inconsistent results based on when the singleton was first accessed.

Parameters

string $extension

Classname of an Extension subclass without parameters

Return Value

bool

array 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).

Return Value

array

Map of DataExtension instances, keyed by classname.

mixed cacheToFile(string $method, int $lifetime = 3600, string $ID = false, array $arguments = array())

Cache the results of an instance method in this object to a file, or if it is already cache return the cached results

Parameters

string $method

the method name to cache

int $lifetime

the cache lifetime in seconds

string $ID

custom cache ID to use

array $arguments

an optional array of arguments

Return Value

mixed

the cached data

clearCache($method, $ID = false, $arguments = array())

Clears the cache for the given cacheToFile call

Parameters

$method
$ID
$arguments

protected mixed loadCache(string $cache, int $lifetime = 3600)

Loads a cache from the filesystem if a valid on is present and within the specified lifetime

Parameters

string $cache

the cache name

int $lifetime

the lifetime (in seconds) of the cache before it is invalid

Return Value

mixed

protected saveCache(string $cache, mixed $data)

Save a piece of cached data to the file system

Parameters

string $cache

the cache name

mixed $data

data to save (must be serializable)

protected string sanitiseCachename(string $name)

Strip a file name of special characters so it is suitable for use as a cache file name

Parameters

string $name

Return Value

string

the name with all special cahracters replaced with underscores

static string castingObjectCreator(string $fieldSchema)

Converts a field spec into an object creator. For example: "Int" becomes "new Int($fieldName);" and "Varchar(50)" becomes "new Varchar($fieldName, 50);".

Parameters

string $fieldSchema

The field spec

Return Value

string

static array castingObjectCreatorPair(string $fieldSchema)

Convert a field schema (e.g. "Varchar(50)") into a casting object creator array that contains both a className and castingHelper constructor code. See castingObjectCreator for more information about the constructor.

Parameters

string $fieldSchema

Return Value

array

bool __isset(string $property)

Check if a field exists on this object or its failover.

Parameters

string $property

Return Value

bool

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.

Parameters

string $property

Return Value

mixed

__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.

Parameters

string $property
mixed $value

setFailover(ViewableData $failover)

Set a failover object to attempt to get data from if it is not present on this object.

Parameters

ViewableData $failover

ViewableData|null getFailover()

Get the current failover object if set

Return Value

ViewableData|null

bool hasField(string $field)

Check if a field exists on this object. This should be overloaded in child classes.

Parameters

string $field

Return Value

bool

mixed getField(string $field)

Get the value of a field on this object. This should be overloaded in child classes.

Parameters

string $field

Return Value

mixed

setField(string $field, mixed $value)

Set a field on this object. This should be overloaded in child classes.

Parameters

string $field
mixed $value

unknown deprecatedCachedCall($method, $args = null, string $identifier = null)

Method to facilitate deprecation of underscore-prefixed methods automatically being cached.

Parameters

$method
$args
string $identifier

an optional custom cache identifier

Return Value

unknown

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.

Parameters

array|ViewableData $data

Return Value

ViewableData_Customised

ViewableData getCustomisedObj()

No description

Return Value

ViewableData

setCustomisedObj(ViewableData $object)

No description

Parameters

ViewableData $object

array castingHelperPair(string $field)

Get the class a field on this object would be casted to, as well as the casting helper for casting a field to an object (see ViewableData::castingHelper() for information on casting helpers).

The returned array contains two keys:

  • className: the class the field would be casted to (e.g. "Varchar")
  • castingHelper: the casting helper for casting the field (e.g. "return new Varchar($fieldName)")

Parameters

string $field

Return Value

array

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.

Parameters

string $field

Return Value

string

string castingClass(string $field)

Get the class name a field on this object will be casted to

Parameters

string $field

Return Value

string

string escapeTypeForField(string $field)

Return the string-format type for the given field.

Parameters

string $field

Return Value

string 'xml'|'raw'

buildCastingCache(reference $cache)

Save the casting cache for this object (including data from any failovers) into a variable

Parameters

reference $cache

HTMLText 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

Parameters

string|array|SSViewer $template

the template to render into

array $customFields

fields to customise() the object with before rendering

Return Value

HTMLText

protected objCacheName(string $fieldName, array $arguments)

Generate the cache name for a field

Parameters

string $fieldName

Name of field

array $arguments

List of optional arguments given

protected mixed objCacheGet(string $key)

Get a cached value from the field cache

Parameters

string $key

Cache key

Return Value

mixed

protected objCacheSet(string $key, mixed $value)

Store a value in the field cache

Parameters

string $key

Cache key

mixed $value

obj(string $fieldName, array $arguments = null, bool $forceReturnedObject = true, 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.

Parameters

string $fieldName
array $arguments
bool $forceReturnedObject

if TRUE, the value will ALWAYS be casted to an object before being returned, even if there is no explicit casting information

bool $cache

Cache this object

string $cacheName

a custom cache name

cachedCall(string $field, array $arguments = null, 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.

Parameters

string $field
array $arguments
string $identifier

an optional custom cache identifier

bool hasValue(string $field, array $arguments = null, bool $cache = true)

Checks if a given method/field has a valid value. If the result is an object, this will return the result of the exists method, otherwise will check if the result is not just an empty paragraph tag.

Parameters

string $field
array $arguments
bool $cache

Return Value

bool

XML_val($field, $arguments = null, $cache = false)

Get the string value of a field on this object that has been suitable escaped to be inserted directly into a template.

Parameters

$field
$arguments
$cache

RAW_val($field, $arguments = null, $cache = true)

Return the value of the field without any escaping being applied.

Parameters

$field
$arguments
$cache

SQL_val($field, $arguments = null, $cache = true)

Return the value of a field in an SQL-safe format.

Parameters

$field
$arguments
$cache

JS_val($field, $arguments = null, $cache = true)

Return the value of a field in a JavaScript-save format.

Parameters

$field
$arguments
$cache

ATT_val($field, $arguments = null, $cache = true)

Return the value of a field escaped suitable to be inserted into an XML node attribute.

Parameters

$field
$arguments
$cache

array getXMLValues($fields)

Get an array of XML-escaped values by field name

Parameters

$fields

Return Value

array

ArrayIterator getIterator()

Returns an Iterator for this relation.

Return Value

ArrayIterator

ViewableData Me()

When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need access to itself.

Return Value

ViewableData

string ThemeDir(string $subtheme = false)

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.

Parameters

string $subtheme

the subtheme path to get

Return Value

string

string CSSClasses(string $stopAtClass = 'ViewableData')

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".

Parameters

string $stopAtClass

the class to stop at (default: ViewableData)

Return Value

string

ViewableData_Debugger Debug()

Return debug information about this object that can be rendered into a template

Return Value

ViewableData_Debugger

dataClass()

Get the dataClass name for this relation, ie the DataObject ClassName

int count()

Return the number of items in this list

Return Value

int

array toArray()

Return an array of the actual items that this relation contains at this stage.

This is when the query is actually executed.

Return Value

array

mixed each(callable $callback)

Walks the list using the specified callback

Parameters

callable $callback

Return Value

mixed

debug()

No description

array toNestedArray()

Return this list as an array and every object it as an sub array as well

Return Value

array

SS_Limitable limit(int $length, $offset = 0)

Get a sub-range of this dataobjectset as an array

Parameters

int $length
$offset

Return Value

SS_Limitable

add(mixed $item, array $extraFields = null)

Add an item to this relationship

Parameters

mixed $item
array $extraFields

A map of additional columns to insert into the joinTable in the case of a many_many relation

remove(mixed $item)

Remove this item from this list

Parameters

mixed $item

replace(array|object $item, array|object $with)

Replaces an item in this list with another item.

Parameters

array|object $item
array|object $with

merge(array|object $with)

Merges with another array or list by pushing all the items in it onto the end of this list.

Parameters

array|object $with

removeDuplicates(string $field = 'ID')

Removes items from this list which are equal.

Parameters

string $field

push(array|object $item, array $extraFields = null)

Pushes an item onto the end of this list.

Parameters

array|object $item
array $extraFields

array|object pop()

Pops the last element off the end of the list and returns it.

Return Value

array|object

unshift(array|object $item)

Add an item onto the beginning of the list.

Parameters

array|object $item

array|object shift()

Shifts the item off the beginning of the list and returns it.

Return Value

array|object

mixed first()

Returns the first item in the list

Return Value

mixed

mixed last()

Returns the last item in the list

Return Value

mixed

array map(string $keyfield = 'ID', string $titlefield = 'Title')

Returns a map of this list

Parameters

string $keyfield
string $titlefield

Return Value

array

mixed find(string $key, mixed $value)

Find the first item of this list where the given key = value

Parameters

string $key
mixed $value

Return Value

mixed

array column(string $colName = 'ID')

Returns an array of a single field value for all items in the list.

Parameters

string $colName

Return Value

array

bool canSortBy(string $by)

Returns true if the given column can be used to sort the records.

Parameters

string $by

Return Value

bool

SS_Sortable reverse()

Reverses an ArrayList

Return Value

SS_Sortable

protected array parseSortColumn(string $column, string $direction = null)

Parses a specified column into a sort field and direction

Parameters

string $column

String to parse containing the column name

string $direction

Optional Additional argument which may contain the direction

Return Value

array

Sort specification in the form array("Column", SORT_ASC).

SS_Sortable sort()

Sorts this list by one or more fields. You can either pass in a single field name and direction, or a map of field names to sort directions.

Note that columns may be double quoted as per ANSI sql standard

Return Value

SS_Sortable

See also

\SS_List::sort()

Examples

$list->sort('Name'); // default ASC sorting
$list->sort('Name DESC'); // DESC sorting
$list->sort('Name', 'ASC');
$list->sort(array('Name'=>'ASC,'Age'=>'DESC'));

bool canFilterBy(string $by)

Returns true if the given column can be used to filter the records.

Parameters

string $by

Return Value

bool

SS_Filterable filter()

Filter the list to include items with these charactaristics

Return Value

SS_Filterable

See also

\SS_List::filter()

Examples

$list->filter('Name', 'bob'); // only bob in the list
$list->filter('Name', array('aziz', 'bob'); // aziz and bob in list
$list->filter(array('Name'=>'bob, 'Age'=>21)); // bob with the Age 21 in list
$list->filter(array('Name'=>'bob, 'Age'=>array(21, 43))); // bob with the Age 21 or 43
$list->filter(array('Name'=>array('aziz','bob'), 'Age'=>array(21, 43)));
// aziz with the age 21 or 43 and bob with the Age 21 or 43

DataList filterAny()

Return a copy of this list which contains items matching any of these charactaristics.

Return Value

DataList

Examples

// only bob in the list
$list = $list->filterAny('Name', 'bob');
// azis or bob in the list
$list = $list->filterAny('Name', array('aziz', 'bob');
// bob or anyone aged 21 in the list
$list = $list->filterAny(array('Name'=>'bob, 'Age'=>21));
// bob or anyone aged 21 or 43 in the list
$list = $list->filterAny(array('Name'=>'bob, 'Age'=>array(21, 43)));
// all bobs, phils or anyone aged 21 or 43 in the list
$list = $list->filterAny(array('Name'=>array('bob','phil'), 'Age'=>array(21, 43)));

protected array normaliseFilterArgs($column, $value = null)

Take the "standard" arguments that the filter/exclude functions take and return a single array with 'colum' => 'value'

Parameters

$column

array|string The column name to filter OR an assosicative array of column => value

$value

array|string|null The values to filter the $column against

Return Value

array

The normalised keyed array

ArrayList byIDs(array $ids)

Filter this list to only contain the given Primary IDs

Parameters

array $ids

Array of integers, will be automatically cast/escaped.

Return Value

ArrayList

byID($id)

No description

Parameters

$id

SS_Filterable filterByCallback($callback)

No description

Parameters

$callback

Return Value

SS_Filterable

See also

SS_Filterable::filterByCallback

Examples

$list = $list->filterByCallback(function($item, $list) { return $item->Age == 9; })

SS_Filterable exclude()

Exclude the list to not contain items with these charactaristics

Return Value

SS_Filterable

See also

\SS_List::exclude()

Examples

$list->exclude('Name', 'bob'); // exclude bob from list
$list->exclude('Name', array('aziz', 'bob'); // exclude aziz and bob from list
$list->exclude(array('Name'=>'bob, 'Age'=>21)); // exclude bob that has Age 21
$list->exclude(array('Name'=>'bob, 'Age'=>array(21, 43))); // exclude bob with Age 21 or 43
$list->exclude(array('Name'=>array('bob','phil'), 'Age'=>array(21, 43)));
// bob age 21 or 43, phil age 21 or 43 would be excluded

protected shouldExclude($item, $args)

No description

Parameters

$item
$args

bool offsetExists($offset)

Returns whether an item with $key exists

Parameters

$offset

Return Value

bool

DataObject offsetGet($offset)

Returns item stored in list with index $key

Parameters

$offset

Return Value

DataObject

offsetSet($offset, mixed $value)

Set an item with the key in $key

Parameters

$offset
mixed $value

offsetUnset($offset)

Unset an item with the key in $key

Parameters

$offset

protected mixed extractValue(array|object $item, string $key)

Extracts a value from an item in the list, where the item is either an object or array.

Parameters

array|object $item
string $key

Return Value

mixed

changeToList(RelationList $list)

Save all the items in this list into the RelationList

Parameters

RelationList $list

DataList addMany(array $items)

Add a number of items to the relation.

Parameters

array $items

Items to add, as either DataObjects or IDs.

Return Value

DataList

removeAll()

Remove all items from this relation.

$this removeMany(array $items)

Remove the items from this list with the given IDs

Parameters

array $items

Return Value

$this

setByIDList(array $idList)

Sets the Relation to be the given ID list.

Records will be added and deleted as appropriate.

Parameters

array $idList

List of IDs.

array getIDList()

Returns an array with both the keys and values set to the IDs of the records in this list.

Does not respect sort order. Use ->column("ID") to get an ID list with the current sort. Does not return the IDs for unsaved DataObjects.

Return Value

array

forForeignID(int|array $id)

Returns a copy of this list with the relationship linked to the given foreign ID.

Parameters

int|array $id

An ID or an array of IDs.

DBField dbObject(string $fieldName)

Return the DBField object that represents the given field on the related class.

Parameters

string $fieldName

Name of the field

Return Value

DBField

The field as a DBField object