Class RulesChecker
ORM flavoured rules checker.
Adds ORM related features to the RulesChecker class.
- Cake\Datasource\RulesChecker
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Cake\ORM\RulesChecker
Inherited Properties
Method Summary
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existsIn() public
Returns a callable that can be used as a rule for checking that the values extracted from the entity to check exist as the primary key in another table.
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isUnique() public
Returns a callable that can be used as a rule for checking the uniqueness of a value in the table.
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validCount() public
Validates the count of associated records.
Method Detail
existsIn() public ¶
existsIn( string|array $field , object|string $table , string|array|null $message null )
Returns a callable that can be used as a rule for checking that the values extracted from the entity to check exist as the primary key in another table.
This is useful for enforcing foreign key integrity checks.
Example:
$rules->add($rules->existsIn('author_id', 'Authors', 'Invalid Author')); $rules->add($rules->existsIn('site_id', new SitesTable(), 'Invalid Site'));
Available $options are error 'message' and 'allowNullableNulls' flag. 'message' sets a custom error message. Set 'allowNullableNulls' to true to accept composite foreign keys where one or more nullable columns are null.
Parameters
- string|array $field
The field or list of fields to check for existence by primary key lookup in the other table.
- object|string $table
- The table name where the fields existence will be checked.
- string|array|null $message optional null
The error message to show in case the rule does not pass. Can also be an array of options. When an array, the 'message' key can be used to provide a message.
Returns
isUnique() public ¶
isUnique( array $fields , string|array|null $message null )
Returns a callable that can be used as a rule for checking the uniqueness of a value in the table.
Example:
$rules->add($rules->isUnique(['email'], 'The email should be unique'));
Parameters
- array $fields
- The list of fields to check for uniqueness.
- string|array|null $message optional null
The error message to show in case the rule does not pass. Can also be an array of options. When an array, the 'message' key can be used to provide a message.
Returns
validCount() public ¶
validCount( string $field , integer $count 0 , string $operator '>' , string|null $message null )
Validates the count of associated records.
Parameters
- string $field
- The field to check the count on.
- integer $count optional 0
- The expected count.
- string $operator optional '>'
- The operator for the count comparison.
- string|null $message optional null
- The error message to show in case the rule does not pass.
Returns
Methods inherited from Cake\Datasource\RulesChecker
__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 $rules [] )
Used by top level functions checkDelete, checkCreate and checkUpdate, this function iterates an array containing the rules to be checked and checks them all.
Parameters
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Cake\Datasource\EntityInterface$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.