Provides a basic array based context provider for FormHelper.
This adapter is useful in testing or when you have forms backed by simple array data structures.
Important keys:
defaults The default values for fields. These values will be used when there is no request data set. Data should be nested following the dot separated paths you access your fields with.required A nested array of fields, relationships and boolean flags to indicate a field is required.schema An array of data that emulate the column structures that Cake\Database\Schema\Schema uses. This array allows you to control the inferred type for fields and allows auto generation of attributes like maxlength, step and other HTML attributes. If you want primary key/id detection to work. Make sure you have provided a _constraints array that contains primary. See below for an example.errors An array of validation errors. Errors should be nested following the dot separated paths you access your fields with.
$data = [ 'schema' => [ 'id' => ['type' => 'integer'], 'title' => ['type' => 'string', 'length' => 255], '_constraints' => [ 'primary' => ['type' => 'primary', 'columns' => ['id']] ] ], 'defaults' => [ 'id' => 1, 'title' => 'First post!', ] ];
__construct( Cake\Http\ServerRequest $request , array $context )
Constructor.
Cake\Http\ServerRequest $request $context attributes( string $field )
Get an associative array of other attributes for a field name.
$field Cake\View\Form\ContextInterface::attributes() error( string $field )
Get the errors for a given field
$field An array of errors, an empty array will be returned when the context has no errors.
Cake\View\Form\ContextInterface::error() fieldNames( )
Get the fieldnames of the top level object in this context.
Cake\View\Form\ContextInterface::fieldNames() hasError( string $field )
Check whether or not a field has an error attached to it
$field Cake\View\Form\ContextInterface::hasError() isCreate( )
Returns whether or not this form is for a create operation.
For this method to return true, both the primary key constraint must be defined in the 'schema' data, and the 'defaults' data must contain a value for all fields in the key.
Cake\View\Form\ContextInterface::isCreate() isPrimaryKey( string $field )
Returns true if the passed field name is part of the primary key for this context
$field A dot separated path to the field a value is needed for.
Cake\View\Form\ContextInterface::isPrimaryKey() isRequired( string $field )
Check if a given field is 'required'.
In this context class, this is simply defined by the 'required' array.
$field Cake\View\Form\ContextInterface::isRequired() primaryKey( )
Get the fields used in the context as a primary key.
Cake\View\Form\ContextInterface::primaryKey() type( string $field )
Get the abstract field type for a given field name.
$field Cake\Database\TypeCake\View\Form\ContextInterface::type() val( string $field , array $options [] )
Get the current value for a given field.
This method will coalesce the current request data and the 'defaults' array.
$field A dot separated path to the field a value is needed for.
$options optional [] Options: - default: Default value to return if no value found in request data or context record. - schemaDefault: Boolean indicating whether default value from context's schema should be used if it's not explicitly provided.
Cake\View\Form\ContextInterface::val()
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https://api.cakephp.org/3.4/class-Cake.View.Form.ArrayContext.html