DataObject
class DataObject extends ViewableData implements DataObjectInterface, i18nEntityProvider, Resettable
A single database record & abstract class for the data-access-model.
Extensions
See {@link Extension} and {@link DataExtension}.
Permission Control
Object-level access control by {@link Permission}. Permission codes are arbitrary strings which can be selected on a group-by-group basis.
class Article extends DataObject implements PermissionProvider {
static $api_access = true;
function canView($member = false) {
return Permission::check('ARTICLE_VIEW');
}
function canEdit($member = false) {
return Permission::check('ARTICLE_EDIT');
}
function canDelete() {
return Permission::check('ARTICLE_DELETE');
}
function canCreate() {
return Permission::check('ARTICLE_CREATE');
}
function providePermissions() {
return array(
'ARTICLE_VIEW' => 'Read an article object',
'ARTICLE_EDIT' => 'Edit an article object',
'ARTICLE_DELETE' => 'Delete an article object',
'ARTICLE_CREATE' => 'Create an article object',
);
}
}
Object-level access control by {@link Group} membership:
class Article extends DataObject {
static $api_access = true;
function canView($member = false) {
if(!$member) $member = Security::getCurrentUser();
return $member->inGroup('Subscribers');
}
function canEdit($member = false) {
if(!$member) $member = Security::getCurrentUser();
return $member->inGroup('Editors');
}
// ...
}
If any public method on this class is prefixed with an underscore, the results are cached in memory through {@link cachedCall()}.
Traits
Constants
| CHANGE_NONE |
Represents a field that hasn't changed (before === after, thus before == after) |
| 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 |
Config options
| singular_name | string | Human-readable singular name. | |
| plural_name | string | Human-readable plural name | |
| api_access | Allow API access to this object? | ||
| default_classname | string | Allows specification of a default value for the ClassName field. | |
| validation_enabled | boolean | Should dataobjects be validated before they are written? | |
| fixed_fields | array | Base fields which are not defined in static $db | |
| cascade_deletes | array | List of relations that should be cascade deleted, similar to owns
Note: This will trigger delete on many_many objects, not only the mapping table. |
|
| db | array | Database field definitions. | |
| create_table_options | array | Specify custom options for a CREATE TABLE call. | |
| indexes | array | If a field is in this array, then create a database index on that field. This is a map from fieldname to index type. | |
| defaults | array | Inserts standard column-values when a DataObject is instantiated. Does not insert default records {see $default_records}. | |
| default_records | array | Multidimensional array which inserts default data into the database on a db/build-call as long as the database-table is empty. Please use this only for simple constructs, not for SiteTree-Objects etc. which need special behaviour such as publishing and ParentNodes. | |
| has_one | array | One-to-zero relationship defintion. This is a map of component name to data type. In order to turn this into a true one-to-one relationship you can add a {@link DataObject::$belongs_to} relationship on the child class. | |
| belongs_to | array | A meta-relationship that allows you to define the reverse side of a {@link DataObject::$has_one}. | |
| has_many | array | This defines a one-to-many relationship. It is a map of component name to the remote data class. | |
| many_many | array | many-many relationship definitions. | |
| many_many_extraFields | array | Extra fields to include on the connecting many-many table. | |
| belongs_many_many | array | The inverse side of a many-many relationship. | |
| 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. | |
| searchable_fields | array | Default list of fields that can be scaffolded by the ModelAdmin search interface. | |
| field_labels | array | User defined labels for searchable_fields, used to override default display in the search form. | |
| summary_fields | array | Provides a default list of fields to be used by a 'summary' view of this object. |
Properties
| bool | $destroyed | ||
| int | $ID | ID of the DataObject, 0 if the DataObject doesn't exist in database. | |
| int | $OldID | ID of object, if deleted | |
| string | $Title | ||
| string | $ClassName | Class name of the DataObject | |
| string | $LastEdited | Date and time of DataObject's last modification. | |
| string | $Created | Date and time of DataObject creation. | |
| string | $ObsoleteClassName | If ClassName no longer exists this will be set to the legacy value |
Methods
Attempts to locate and call a method dynamically added to a class at runtime if a default cannot be located
Return the names of all the methods available on 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 {@link 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 {@link $extension_instances}. Extension instances are initialized at constructor time, meaning if you use {@link add_extension()} afterwards, the added extension will just be added to new instances of the extended class. Use the static method {@link has_extension()} to check if a class (not an instance) has a specific extension.
Get all extension instances for this specific object instance.
An implementation of the factory method, allows you to create an instance of a class
Creates a class instance by the "singleton" design pattern.
Get a configuration accessor for this class. Short hand for Config::inst()->get($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{$property} exists, then check if a field is available using {@link ViewableData::getField()}, then fall back on a failover object.
Set a property/field on this object. This will check for the existence of a method called set{$property}, then use the {@link 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
Gets the value of a field.
Set the value of the field Called by {@link __set()} and any setFieldName() methods you might create.
Adds methods from the extensions.
Merge some arbitrary data in with this object. This method returns a {@link 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
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 {@link 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
Get schema object
Destroy all of this objects dependant objects and local caches.
Create a duplicate of this node. Can duplicate many_many relations
Return obsolete class name, if this is no longer a valid class
Gets name of this class
Set the ClassName attribute. {@link $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: $this->class.PLURALNAME Example: Page.PLURALNAME
Standard implementation of a title/label for a specific record. Tries to find properties 'Title' or 'Name', and falls back to the 'ID'. Useful to provide user-friendly identification of a record, e.g. in errormessages or UI-selections.
Returns the associated database record - in this case, the object itself.
Convert this object to a map.
Return all currently fetched database fields.
Update a number of fields on this object, given a map of the desired changes.
Pass changes as a map, and try to get automatic casting for these fields.
Merges data and relations from another object of same class, without conflict resolution. Allows to specify which dataset takes priority in case its not empty.
Forces the record to think that all its data has changed.
Validate the current object.
Public accessor for {see DataObject::validate()}
Find all objects that will be cascade deleted if this object is deleted
Load the default values in from the self::$defaults array.
Writes all changes to this object to the database.
Writes cached relation lists to the database, if possible
Write the cached components to the database. Cached components could refer to two different instances of the same record.
Delete this data object.
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.
Return information about a many-to-many component.
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.
Determine which properties on the DataObject are searchable, and map them to their default {@link FormField} representations. Used for scaffolding a searchform for {@link ModelAdmin}.
Scaffold a simple edit form for all properties on this dataobject, based on default {@link FormField} mapping in {@link DBField::scaffoldFormField()}.
Centerpiece of every data administration interface in Silverstripe, which returns a {@link 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.
Used for simple frontend forms without relation editing or {@link TabSet} behaviour. Uses {@link scaffoldFormFields()} by default. To customize, either overload this method in your subclass, or extend it by {@link DataExtension->updateFrontEndFields()}.
Return the fields that have changed since the last write.
Uses {@link 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:
Debugging used by Debug::show()
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.
Reset all global caches associated with DataObject.
Return the given element, searching by ID.
Get the name of the base table for this object
Get the base class for this object
No description
Get list of parameters that should be inherited to relations on this object
No description
No description
No description
Check the database schema and update it as necessary.
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().
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 {@link fieldLabels()} for more details.
Get the default summary fields for this object.
Defines a default list of filters for the search context.
No description
Temporarily disable subclass access in data object qeur
No description
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.
Details
in CustomMethods at line 50
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 {@link Extensions}, {@link Object::createMethod()} or {@link Object::addWrapperMethod()}
in CustomMethods at line 144
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
in CustomMethods at line 172
array
allMethodNames(bool $custom = false)
Return the names of all the methods available on this object
in Extensible at line 163
static bool
add_extension(string $classOrExtension, string $extension = null)
Add an extension to a specific class.
The preferred method for adding extensions is through YAML config, since it avoids autoloading the class, and is easier to override in more specific configurations.
As an alternative, extensions can be added to a specific class directly in the {@link Object::$extensions} array. See {@link 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 {@link singleton()}).
in Extensible at line 224
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 {@link Object} instances which are already created, but will have an effect on new extensions. Clears any previously created singletons through {@link singleton()} to avoid side-effects from stale extension information.
in Extensible at line 264
static array
get_extensions(string $class = null, bool $includeArgumentString = false)
in Extensible at line 298
static array|null
get_extra_config_sources(string $class = null)
Get extra config sources for this class
in Extensible at line 359
static bool
has_extension(string $classOrExtension, string $requiredExtension = null, boolean $strict = false)
Return TRUE if a class has a specified extension.
This supports backwards-compatible format (static Object::has_extension($requiredExtension)) and new format ($object->has_extension($class, $requiredExtension))
in Extensible at line 395
array
invokeWithExtensions(string $method, mixed $arguments)
Calls a method if available on both this object and all applied {@link Extensions}, and then attempts to merge all results into an array
in Extensible at line 424
array
extend(string $method, mixed $arguments)
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 {@link __construct()} in {@link defineMethods()}.
in Extensible at line 465
Extension|null
getExtensionInstance(string $extension)
Get an extension instance attached to this object by name.
in Extensible at line 494
bool
hasExtension(string $extension)
Returns TRUE if this object instance has a specific extension applied in {@link $extension_instances}. Extension instances are initialized at constructor time, meaning if you use {@link add_extension()} afterwards, the added extension will just be added to new instances of the extended class. Use the static method {@link has_extension()} to check if a class (not an instance) has a specific extension.
Caution: Don't use singleton(
in Extensible at line 508
Extension[]
getExtensionInstances()
Get all extension instances for this specific object instance.
See {@link 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.
in Injectable at line 26
static Injectable
create(array $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'); $list = SiteTree::get();
in Injectable at line 43
static Injectable
singleton(string $class = null)
Creates a class instance by the "singleton" design pattern.
It will always return the same instance for this class, which can be used for performance reasons and as a simple way to access instance methods which don't rely on instance data (e.g. the custom SilverStripe static handling).
in Configurable at line 20
static Config_ForClass
config()
Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .
....).
in Configurable at line 32
mixed
stat(string $name)
deprecated
deprecated 5.0 Use ->config()->get() instead
Get inherited config value
in Configurable at line 44
mixed
uninherited(string $name)
Gets the uninherited value for the given config option
in Configurable at line 57
$this
set_stat(string $name, mixed $value)
deprecated
deprecated 5.0 Use ->config()->set() instead
Update the config value for a given property
at line 327
__construct(array|null $record = null, boolean $isSingleton = false, array $queryParams = array())
Construct a new DataObject.
in ViewableData at line 106
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.
in ViewableData at line 129
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 {@link ViewableData::getField()}, then fall back on a failover object.
in ViewableData at line 152
__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 {@link ViewableData::setField()} method.
in ViewableData at line 167
setFailover(ViewableData $failover)
Set a failover object to attempt to get data from if it is not present on this object.
in ViewableData at line 183
ViewableData|null
getFailover()
Get the current failover object if set
at line 2827
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
at line 2470
mixed
getField(string $field)
Gets the value of a field.
Called by {@link __get()} and any getFieldName() methods you might create.
at line 2688
$this
setField(string $fieldName, mixed $val)
Set the value of the field Called by {@link __set()} and any setFieldName() methods you might create.
at line 717
defineMethods()
Adds methods from the extensions.
Called by Object::__construct() once per class.
in ViewableData at line 258
ViewableData_Customised
customise(array|ViewableData $data)
Merge some arbitrary data in with this object. This method returns a {@link 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.
at line 755
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.
in ViewableData at line 289
string
__toString()
in ViewableData at line 297
ViewableData
getCustomisedObj()
in ViewableData at line 305
setCustomisedObj(ViewableData $object)
at line 2798
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.
in ViewableData at line 352
string
castingClass(string $field)
Get the class name a field on this object will be casted to.
in ViewableData at line 365
string
escapeTypeForField(string $field)
Return the string-format type for the given field.
in ViewableData at line 389
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
in ViewableData at line 471
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.
in ViewableData at line 516
Object|DBField
cachedCall(string $field, array $arguments = [], string $identifier = null)
A simple wrapper around {@link ViewableData::obj()} that automatically caches the result so it can be used again without re-running the method.
at line 4091
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)
in ViewableData at line 545
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.
in ViewableData at line 558
array
getXMLValues(array $fields)
Get an array of XML-escaped values by field name
in ViewableData at line 579
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.
at line 2458
array
getViewerTemplates(string $suffix = '')
Find appropriate templates for SSViewer to use to render this object
in ViewableData at line 603
ViewableData
Me()
When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need access to itself.
in ViewableData at line 620
string
ThemeDir()
deprecated
deprecated 4.0.0:5.0.0 Use $resourcePath or $resourceURL template helpers instead
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.
in ViewableData at line 647
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".
in ViewableData at line 676
ViewableData_Debugger
Debug()
Return debug information about this object that can be rendered into a template
at line 312
static DataObjectSchema
getSchema()
Get schema object
at line 408
destroy()
Destroy all of this objects dependant objects and local caches.
You'll need to call this to get the memory of an object that has components or extensions freed.
at line 425
DataObject
duplicate(bool $doWrite = true, array|null|false $relations = null)
Create a duplicate of this node. Can duplicate many_many relations
at line 631
string
getObsoleteClassName()
Return obsolete class name, if this is no longer a valid class
at line 645
string
getClassName()
Gets name of this class
at line 664
$this
setClassName(string $className)
Set the ClassName attribute. {@link $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 {@link newClassInstance()} for this purpose, or destroy and reinstanciate the record.
at line 692
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 {@link 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.
at line 766
boolean
isEmpty()
Returns TRUE if all values (other than "ID") are considered empty (by weak boolean comparison).
at line 794
string
i18n_pluralise(string $count)
Pluralise this item given a specific count.
E.g. "0 Pages", "1 File", "3 Images"
at line 811
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.
at line 835
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
at line 847
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.
at line 870
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: $this->class.PLURALNAME Example: Page.PLURALNAME
at line 892
string
getTitle()
Standard implementation of a title/label for a specific record. Tries to find properties 'Title' or 'Name', and falls back to the 'ID'. Useful to provide user-friendly identification of a record, e.g. in errormessages or UI-selections.
Overload this method to have a more specialized implementation,
e.g. for an Address record this could be:
function getTitle() {
return "{$this->StreetNumber} {$this->StreetName} {$this->City}";
}
at line 911
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.
at line 921
array
toMap()
Convert this object to a map.
at line 935
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.
at line 955
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.
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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.
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Boolean
merge(DataObject $rightObj, string $priority = 'right', bool $includeRelations = true, bool $overwriteWithEmpty = false)
Merges data and relations from another object of same class, without conflict resolution. Allows to specify which dataset takes priority in case its not empty.
has_one-relations are just transferred with priority 'right'. has_many and many_many-relations are added regardless of priority.
Caution: has_many/many_many relations are moved rather than duplicated, meaning they are not connected to the merged object any longer. Caution: Just saves updated has_many/many_many relations to the database, doesn't write the updated object itself (just writes the object-properties). Caution: Does not delete the merged object. Caution: Does now overwrite Created date on the original object.
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$this
forceChange()
Forces the record to think that all its data has changed.
Doesn't write to the database. Force-change preseved until next write. Existing CHANGE_VALUE or CHANGE_STRICT values are preserved.
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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.
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ValidationResult
doValidate()
Public accessor for {see DataObject::validate()}
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ArrayList
findCascadeDeletes(bool $recursive = true, ArrayList $list = null)
Find all objects that will be cascade deleted if this object is deleted
Notes: - If this object is versioned, objects will only be searched in the same stage as the given record. - This will only be useful prior to deletion, as post-deletion this record will no longer exist.
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DataObject
populateDefaults()
Load the default values in from the self::$defaults array.
Will traverse the defaults of the current class and all its parent classes. Called by the constructor when creating new records.
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write(boolean $showDebug = false, boolean $forceInsert = false, boolean $forceWrite = false, boolean|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 ammend the database-write to ensure that a version is saved.
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writeRelations()
Writes cached relation lists to the database, if possible
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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.
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delete()
Delete this data object.
$this->onBeforeDelete() gets called. Note that in Versioned objects, both Stage and Live will be deleted.
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static
delete_by_id(string $className, int $id)
Delete the record with the given ID.
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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.
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DataObject
getComponent(string $componentName)
Return a unary component object from a one to one relationship, as a DataObject.
If no component is available, an 'empty component' will be returned for non-polymorphic relations, or for polymorphic relations with a class set.
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$this
setComponent(string $componentName, DataObject|null $item)
Assign an item to the given component
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HasManyList|UnsavedRelationList
getComponents(string $componentName, int|array $id = null)
Returns a one-to-many relation as a HasManyList
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string
getRelationClass(string $relationName)
Find the foreign class of a relation on this DataObject, regardless of the relation type.
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string
getRelationType(string $component)
Given a relation name, determine the relation type
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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.
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ManyManyList|UnsavedRelationList
getManyManyComponents(string $componentName, int|array $id = null)
Returns a many-to-many component, as a ManyManyList.
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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.
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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.
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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.
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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.
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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.
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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.
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SearchContext
getDefaultSearchContext()
Generates a SearchContext to be used for building and processing a generic search form for properties on this object.
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FieldList
scaffoldSearchFields(array $_params = null)
Determine which properties on the DataObject are searchable, and map them to their default {@link FormField} representations. Used for scaffolding a searchform for {@link ModelAdmin}.
Some additional logic is included for switching field labels, based on how generic or specific the field type is.
Used by {@link SearchContext}.
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FieldList
scaffoldFormFields(array $_params = null)
Scaffold a simple edit form for all properties on this dataobject, based on default {@link FormField} mapping in {@link DBField::scaffoldFormField()}.
Field labels/titles will be auto generated from {@link DataObject::fieldLabels()}.
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FieldList
getCMSFields()
Centerpiece of every data administration interface in Silverstripe, which returns a {@link FieldList} suitable for a {@link Form} object.
If not overloaded, we're using {@link scaffoldFormFields()} to automatically generate this set. To customize, overload this method in a subclass or extended onto it by using {@link 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;
}
}
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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.
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FieldList
getFrontEndFields(array $params = null)
Used for simple frontend forms without relation editing or {@link TabSet} behaviour. Uses {@link scaffoldFormFields()} by default. To customize, either overload this method in your subclass, or extend it by {@link DataExtension->updateFrontEndFields()}.
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array
getChangedFields(boolean|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)
)
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boolean
isChanged(string $fieldName = null, int $changeLevel = self::CHANGE_STRICT)
Uses {@link getChangedFields()} to determine if fields have been changed since loading them from the database.
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$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.
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boolean
hasDatabaseField(string $field)
Returns true if the given field exists as a database column
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boolean
can(string $perm, Member $member = null, array $context = array())
Returns true if the member is allowed to do the given action.
See {@link extendedCan()} for a more versatile tri-state permission control.
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boolean|null
extendedCan(string $methodName, Member|int $member, array $context = array())
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;
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boolean
canView(Member $member = null)
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boolean
canEdit(Member $member = null)
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boolean
canDelete(Member $member = null)
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boolean
canCreate(Member $member = null, array $context = array())
at line 2983
string
debug()
Debugging used by Debug::show()
at line 3006
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"
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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.
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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)
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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.
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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
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static DataObject|null
get_one(string|null $callerClass = null, string|array $filter = "", boolean $cache = true, string $orderBy = "")
Return the first item matching the given query.
All calls to get_one() are cached.
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' ]);
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DataObject
flushCache(boolean $persistent = true)
Flush the cached results for all relations (has_one, has_many, many_many) Also clears any cached aggregate data.
at line 3291
static
flush_and_destroy_cache()
Flush the get_one global cache and destroy associated objects.
at line 3310
static
reset()
Reset all global caches associated with DataObject.
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static DataObject
get_by_id(string|int $classOrID, int|bool $idOrCache = null, boolean $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)
at line 3354
string
baseTable()
Get the name of the base table for this object
at line 3364
string
baseClass()
Get the base class for this object
at line 3380
array
getSourceQueryParams()
at line 3390
array
getInheritableQueryParams()
Get list of parameters that should be inherited to relations on this object
at line 3401
setSourceQueryParams(array $array)
at line 3411
setSourceQueryParam(string $key, string $value)
at line 3421
string
getSourceQueryParam(string $key)
at line 3436
requireTable()
Check the database schema and update it as necessary.
at line 3539
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().
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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.
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array
fieldLabels(boolean $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 {@link self::field_labels} exists.
at line 3732
string
fieldLabel(string $name)
Get a human-readable label for a single field, see {@link fieldLabels()} for more details.
at line 3745
array
summaryFields()
Get the default summary fields for this object.
at line 3804
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 {@link DBField} is used.
at line 3825
boolean
isInDB()
at line 3838
static
disable_subclass_access()
Temporarily disable subclass access in data object qeur
at line 3843
static
enable_subclass_access()
at line 4065
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 {@link 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;
}
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DataObject
getJoin()
If selected through a many_many through relation, this is the instance of the joined record
at line 4119
$this
setJoin(DataObject $object, string $alias = null)
Set joining object