Class RulesChecker
Contains logic for storing and checking rules on entities
RulesCheckers are used by Table classes to ensure that the current entity state satisfies the application logic and business rules.
RulesCheckers afford different rules to be applied in the create and update scenario.
Adding rules
Rules must be callable objects that return true/false depending on whether or not the rule has been satisfied. You can use RulesChecker::add(), RulesChecker::addCreate(), RulesChecker::addUpdate() and RulesChecker::addDelete to add rules to a checker.
Running checks
Generally a Table object will invoke the rules objects, but you can manually invoke the checks by calling RulesChecker::checkCreate(), RulesChecker::checkUpdate() or RulesChecker::checkDelete().
Direct Subclasses
Properties summary
-
$_createRulesprotectedcallable[]The list of rules to check during create operations -
$_deleteRulesprotectedcallable[]The list of rules to check during delete operations -
$_optionsprotectedarrayList of options to pass to every callable rule -
$_rulesprotectedcallable[]The list of rules to be checked on both create and update operations -
$_updateRulesprotectedcallable[]The list of rules to check during update operations -
$_useI18nprotectedbooleanWhether or not to use I18n functions for translating default error messages
Method Summary
-
__construct() public
Constructor. Takes the options to be passed to all rules. -
_addError() protected
Utility method for decorating any callable so that if it returns false, the correct property in the entity is marked as invalid.
-
_checkRules() protected
Used by top level functions checkDelete, checkCreate and checkUpdate, this function iterates an array containing the rules to be checked and checks them all.
-
add() public
Adds a rule that will be applied to the entity both on create and update operations.
-
addCreate() public
Adds a rule that will be applied to the entity on create operations. -
addDelete() public
Adds a rule that will be applied to the entity on delete operations. -
addUpdate() public
Adds a rule that will be applied to the entity on update operations. -
check() public
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules to be applied are depended on the $mode parameter which can only be RulesChecker::CREATE, RulesChecker::UPDATE or RulesChecker::DELETE
-
checkCreate() public
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'create'
-
checkDelete() public
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'delete'
-
checkUpdate() public
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'update'
Method Detail
__construct() public ¶
__construct( array $options [] )
Constructor. Takes the options to be passed to all rules.
Parameters
- array $options optional []
- The options to pass to every rule
_addError() protected ¶
_addError( callable $rule , string $name , array $options )
Utility method for decorating any callable so that if it returns false, the correct property in the entity is marked as invalid.
Parameters
- callable $rule
- The rule to decorate
- string $name
- The alias for a rule.
- array $options
- The options containing the error message and field.
Returns
_checkRules() protected ¶
_checkRules( Cake\Datasource\EntityInterface $entity , array $options [] , array $rules [] )
Used by top level functions checkDelete, checkCreate and checkUpdate, this function iterates an array containing the rules to be checked and checks them all.
Parameters
-
Cake\Datasource\EntityInterface$entity - The entity to check for validity.
- array $options optional []
- Extra options to pass to checker functions.
- array $rules optional []
- The list of rules that must be checked.
Returns
add() public ¶
add( callable $rule , string|null $name null , array $options [] )
Adds a rule that will be applied to the entity both on create and update operations.
Options
The options array accept the following special keys:
errorField: The name of the entity field that will be marked as invalid if the rule does not pass.message: The error message to set toerrorFieldif the rule does not pass.
Parameters
- callable $rule
A callable function or object that will return whether the entity is valid or not.
- string|null $name optional null
- The alias for a rule.
- array $options optional []
List of extra options to pass to the rule callable as second argument.
Returns
$this
addCreate() public ¶
addCreate( callable $rule , string|null $name null , array $options [] )
Adds a rule that will be applied to the entity on create operations.
Options
The options array accept the following special keys:
errorField: The name of the entity field that will be marked as invalid if the rule does not pass.message: The error message to set toerrorFieldif the rule does not pass.
Parameters
- callable $rule
A callable function or object that will return whether the entity is valid or not.
- string|null $name optional null
- The alias for a rule.
- array $options optional []
List of extra options to pass to the rule callable as second argument.
Returns
$this
addDelete() public ¶
addDelete( callable $rule , string|null $name null , array $options [] )
Adds a rule that will be applied to the entity on delete operations.
Options
The options array accept the following special keys:
errorField: The name of the entity field that will be marked as invalid if the rule does not pass.message: The error message to set toerrorFieldif the rule does not pass.
Parameters
- callable $rule
A callable function or object that will return whether the entity is valid or not.
- string|null $name optional null
- The alias for a rule.
- array $options optional []
List of extra options to pass to the rule callable as second argument.
Returns
$this
addUpdate() public ¶
addUpdate( callable $rule , string|null $name null , array $options [] )
Adds a rule that will be applied to the entity on update operations.
Options
The options array accept the following special keys:
errorField: The name of the entity field that will be marked as invalid if the rule does not pass.message: The error message to set toerrorFieldif the rule does not pass.
Parameters
- callable $rule
A callable function or object that will return whether the entity is valid or not.
- string|null $name optional null
- The alias for a rule.
- array $options optional []
List of extra options to pass to the rule callable as second argument.
Returns
$this
check() public ¶
check( Cake\Datasource\EntityInterface $entity , string $mode , array $options [] )
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules to be applied are depended on the $mode parameter which can only be RulesChecker::CREATE, RulesChecker::UPDATE or RulesChecker::DELETE
Parameters
-
Cake\Datasource\EntityInterface$entity - The entity to check for validity.
- string $mode
- Either 'create, 'update' or 'delete'.
- array $options optional []
- Extra options to pass to checker functions.
Returns
Throws
if an invalid mode is passed.
checkCreate() public ¶
checkCreate( Cake\Datasource\EntityInterface $entity , array $options [] )
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'create'
Parameters
-
Cake\Datasource\EntityInterface$entity - The entity to check for validity.
- array $options optional []
- Extra options to pass to checker functions.
Returns
checkDelete() public ¶
checkDelete( Cake\Datasource\EntityInterface $entity , array $options [] )
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'delete'
Parameters
-
Cake\Datasource\EntityInterface$entity - The entity to check for validity.
- array $options optional []
- Extra options to pass to checker functions.
Returns
checkUpdate() public ¶
checkUpdate( Cake\Datasource\EntityInterface $entity , array $options [] )
Runs each of the rules by passing the provided entity and returns true if all of them pass. The rules selected will be only those specified to be run on 'update'
Parameters
-
Cake\Datasource\EntityInterface$entity - The entity to check for validity.
- array $options optional []
- Extra options to pass to checker functions.