Yii Framework form model and validation usage _php instance

This example describes the YII framework form model and validation usage. Share to everyone for your reference, specific as follows:

The form model Cformmodel most of the inherited Cmodelcmodel, because the table model data does not need to be persisted, so it is primarily on the validation operation. The following is an example of a form model that takes a Web site login generated by a frame scaffold.

Validation rules in the model public
function rules (.)
{return Array (
    ' username, password ', ' required '),
    Array (' RememberMe ', ' Boolean '),
    Array (' Password ', ' Authenticate '),
  );
}

$model =new loginform;//Create a login form model
$model->attributes=$_post[' loginform '];//incoming logon data
cmodel-> SetAttributes ($values, $safeOnly =true)//Call Cmodel Setter method
//Return the security data defined in model Relues, get a validator collection through the following call process
//Validator by Cvalidator::createvalidator ($rule [1], $this, $rule [0],array_slice ($rule, 2))
Cmodel->getvalidators ()->createvalidators ()->rules () cmodel->validate ()
;// Traverse Validator to perform validation

Validator Internal implementation

The core parts of the form model are validated, and the implementation is discussed below.

The validation in the YII framework exists as a collection of independent components, and Cvalidator is the base class for all validators. Or, for example, login validation. The Rules method contains the required, Boolean, authenticate three validators

public static function Createvalidator ($name, $object, $attributes, $params =array ()) {if (is_string ($attributes)) $att
  Ributes=preg_split ('/[\s,]+/', $attributes, -1,preg_split_no_empty);
    if (Isset ($params [' on '])) {if (Is_array ($params [' in ']) $on = $params [' on '];
  else $on =preg_split ('/[\s,]+/', $params [' on '],-1,preg_split_no_empty);
  else $on =array ();
    if (Method_exists ($object, $name)) {$validator =new cinlinevalidator;
    $validator->attributes= $attributes;
    $validator->method= $name;
      if (Isset ($params [' clientvalidate ']) {$validator->clientvalidate= $params [' clientvalidate '];
    unset ($params [' clientvalidate ']);
    } $validator->params= $params;
  if (Isset ($params [' Skiponerror ']) $validator->skiponerror= $params [' Skiponerror '];
    else {$params [' attributes ']= $attributes;
    if (Isset (self:: $builtInValidators [$name]) $className =yii::import (self:: $builtInValidators [$name],true); Else
      $className =yii::import ($name, true);
    $validator =new $className;
  foreach ($params as $name => $value) $validator-> $name = $value; $validator->on=empty ($on)?
  Array (): Array_combine ($on, $on);
return $validator;

 }

Create Validator Process

1. Get Properties (array $attributes) and use Scene (array $on)
2, to determine whether the validator exists in model, if there is a create an inline validator cinlinevalidator, if it does not exist, perform step 3rd
3, if the validator is a frame with the import of its own validator, otherwise import the external validator, and then instantiate and assign a value.

When the validate () is triggered, the possible errors are stored in model, which can be extracted by calling Cmodel::geterrors () and Cmodel::geterror ()

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I hope this article will help you with the PHP program design based on the YII framework.