CRUDlex\AbstractData

class AbstractData

The abstract class for reading and writing data.

constant DELETION_SUCCESS

Return value on successful deletion.

constant DELETION_FAILED_STILL_REFERENCED

Return value on failed deletion due to existing references.

constant DELETION_FAILED_EVENT

Return value on failed deletion due to a failed before delete event.

property definition

protected

Holds the {@see EntityDefinition} entity definition.

property fileProcessor

protected

Holds the {@see FileProcessorInterface} file processor.

property events

protected

Holds the events.

doDelete(Entity $entity, $deleteCascade)

Performs the actual deletion.

Parameters:
  • $entity (Entity) – the id of the entry to delete
  • $deleteCascade (boolean) – whether to delete children and subchildren
Returns:

integer true on successful deletion
hydrate($row)

Creates an {@see Entity} from the raw data array with the field name as keys and field values as values.

Parameters:
  • $row (array) – the array with the raw data
Returns:

Entity the entity containing the array data then
shouldExecuteEvents(Entity $entity, $moment, $action)

Executes the event chain of an entity.

Parameters:
  • $entity (Entity) – the entity having the event chain to execute
  • $moment (string) – the “moment” of the event, can be either “before” or “after”
  • $action (string) – the “action” of the event, can be either “create”, “update” or “delete”
Returns:

boolean true on successful execution of the full chain or false if it broke at any point (and stopped the execution)
performOnFiles(Entity $entity, $entityName, $function)

Executes a function for each file field of this entity.

Parameters:
  • $entity (Entity) – the just created entity
  • $entityName (string) – the name of the entity as this class here is not aware of it
  • $function (Closure) – the function to perform, takes $entity, $entityName and $field as parameter
pushEvent($moment, $action, $function)

Adds an event to fire for the given parameters. The event function must have this signature: function (Entity $entity) and has to return true or false. The events are executed one after another in the added order as long as they return “true”. The first event returning “false” will stop the process.

Parameters:
  • $moment (string) – the “moment” of the event, can be either “before” or “after”
  • $action (string) – the “action” of the event, can be either “create”, “update” or “delete”
  • $function (anonymous) – $function the event function to be called if set
popEvent($moment, $action)

Removes and returns the latest event for the given parameters.

Parameters:
  • $moment (string) – the “moment” of the event, can be either “before” or “after”
  • $action (string) – the “action” of the event, can be either “create”, “update” or “delete”
Returns:

anonymous function the popped event or null if no event was available.
get($id)

Gets the entity with the given id.

Parameters:
  • $id (string) – the id
Returns:

Entity the entity belonging to the id or null if not existant
listEntries($filter = array(), $filterOperators = array(), $skip = null, $amount = null, $sortField = null, $sortAscending = null)

Gets a list of entities fullfilling the given filter or all if no selection was given.

Parameters:
  • $filter (array) – the filter all resulting entities must fulfill, the keys as field names
  • $filterOperators (array) – the operators of the filter like “=” defining the full condition of the field
  • $skip (integer|null) – if given and not null, it specifies the amount of rows to skip
  • $amount (integer|null) – if given and not null, it specifies the maximum amount of rows to retrieve
  • $sortField (string|null) – if given and not null, it specifies the field to sort the entries
  • $sortAscending (boolean|null) – if given and not null, it specifies that the sort order is ascending, descending else
Returns:

Entity[] the entities fulfilling the filter or all if no filter was given
create(Entity $entity)

Persists the given entity as new entry in the datasource.

Parameters:
  • $entity (Entity) – the entity to persist
Returns:

boolean true on successful creation
update(Entity $entity)

Updates an existing entry in the datasource having the same id.

Parameters:
  • $entity (Entity) – the entity with the new data
Returns:

void
delete($entity)

Deletes an entry from the datasource.

Parameters:
  • $entity (Entity) – the entity to delete
Returns:

integer returns one of: - AbstractData::DELETION_SUCCESS -> successful deletion - AbstractData::DELETION_FAILED_STILL_REFERENCED -> failed deletion due to existing references - AbstractData::DELETION_FAILED_EVENT -> failed deletion due to a failed before delete event
getReferences($table, $nameField)

Gets ids and names of a table. Used for building up the dropdown box of reference type fields.

Parameters:
  • $table (string) – the table
  • $nameField (string) – the field defining the name of the rows
Returns:

array an array with the ids as key and the names as values
countBy($table, $params, $paramsOperators, $excludeDeleted)

Retrieves the amount of entities in the datasource fulfilling the given parameters.

Parameters:
  • $table (string) – the table to count in
  • $params (array) – an array with the field names as keys and field values as values
  • $paramsOperators (array) – the operators of the parameters like “=” defining the full condition of the field
  • $excludeDeleted (boolean) – false, if soft deleted entries in the datasource should be counted, too
Returns:

integer the count fulfilling the given parameters
fetchReferences($entities = null)

Adds the id and name of referenced entities to the given entities. Each reference field is before the raw id of the referenced entity and after the fetch, it’s an array with the keys id and name.

Parameters:
  • $entities –
Returns:

void
getDefinition()

Gets the {@see EntityDefinition} instance.

Returns:EntityDefinition the definition instance
createEmpty()

Creates a new, empty entity instance having all fields prefilled with null or the defined value in case of fixed fields.

Returns:Entity the newly created entity
createFiles(Request $request, Entity $entity, $entityName)

Creates the uploaded files of a newly created entity.

Parameters:
  • $request (Request) – the HTTP request containing the file data
  • $entity (Entity) – the just created entity
  • $entityName (string) – the name of the entity as this class here is not aware of it
updateFiles(Request $request, Entity $entity, $entityName)

Updates the uploaded files of an updated entity.

Parameters:
  • $request (Request) – the HTTP request containing the file data
  • $entity (Entity) – the updated entity
  • $entityName (string) – the name of the entity as this class here is not aware of it
Returns:

boolean true on successful update
deleteFile(Entity $entity, $entityName, $field)

Deletes a specific file from an existing entity.

Parameters:
  • $entity (Entity) – the entity to delete the file from
  • $entityName (string) – the name of the entity as this class here is not aware of it
  • $field (string) – the field of the entity containing the file to be deleted
Returns:

boolean true on successful deletion
deleteFiles(Entity $entity, $entityName)

Deletes all files of an existing entity.

Parameters:
  • $entity (Entity) – the entity to delete the files from
  • $entityName (string) – the name of the entity as this class here is not aware of it
Returns:

boolean true on successful deletion
renderFile(Entity $entity, $entityName, $field)

Renders (outputs) a file of an entity. This includes setting headers like the file size, mimetype and name, too.

Parameters:
  • $entity (Entity) – the entity to render the file from
  • $entityName (string) – the name of the entity as this class here is not aware of it
  • $field (string) – the field of the entity containing the file to be rendered
Returns:

Response the HTTP response, likely to be a streamed one