0

我对 saveAssociated 和存在条目有一点问题:(

楷模：

成分.php

<?php

class Ingredient extends AppModel {

    public $name = 'Ingredient';
    public $hasMany = array('IngredientsRecipes');

    public $hasAndBelongsToMany = array(
        'Recipe' =>
            array(
                'className'              => 'Recipe',
                'joinTable'              => 'ingredients_recipes',
                'foreignKey'             => 'ingredient_id',
                'associationForeignKey'  => 'recipe_id',
                'unique'                 => 'keepExisting',
                'conditions'             => '',
                'fields'                 => '',
                'order'                  => '',
                'limit'                  => '',
                'offset'                 => '',
                'finderQuery'            => '',
                'deleteQuery'            => '',
                'insertQuery'            => ''
            )
    );
 }

食谱.php

<?php
class Recipe extends AppModel {
    public $name = 'Recipe';
    public $hasMany = array('IngredientsRecipes');
    public $hasAndBelongsToMany = array(
        'Ingredient' =>
            array(
                'className'              => 'Ingredient',
                'joinTable'              => 'ingredients_recipes',
                'foreignKey'             => 'recipe_id',
                'associationForeignKey'  => 'ingredient_id',
                'unique'                 => 'keepExisting',
                'conditions'             => '',
                'fields'                 => '',
                'order'                  => '',
                'limit'                  => '',
                'offset'                 => '',
                'finderQuery'            => '',
                'deleteQuery'            => '',
                'insertQuery'            => ''
            )
    );
}

成分配方.php

<?php
class IngredientRecipe extends AppModel {
    public $name = 'IngredientsRecipes';
    public $belongsTo = array('Ingredient', 'Recipe');
}

意见：

查看/IngredientsRecipes/add.ctp

<?php echo $this->Form->create('IngredientRecipe'); ?>
    <?php echo $this->Form->input('Ingredient.ingredient', array('type' => 'text', 'label' => 'Ingredient')); ?>
    <?php echo $this->Form->input('Recipe.recipe', array('type' => 'text', 'label' => 'Recipe')); ?>
    <button type="submit">Save</button>
<?php echo $this->Form->end(); ?>

控制器：

成分配方控制器.php

<?php
class IngredientRecipeController extends AppController {

public function add() {
    if ($this->request->is('post')) {
     if(!empty($this->request->data)) {
       $ingredients_comma_separated = explode(',', $this->request->data['Ingredient']['ingredient']);
       $recipes_comma_separated = explode(',', $this->request->data['Recipe']['recipe']);
       $recipes = array();
         foreach($ingredients_comma_separated as $ingredient){
         $recipes['Ingredient']['ingredient'] = trim($ingredient);
         foreach($recipes_comma_separated as $recipe){
         $recipes['Recipe']['recipe'] = trim($recipe);
        if ($this->IngredientRecipe->saveAssociated($recipes, array('deep' => true, 'validate' => 'first'))) {
            $this->Session->setFlash('Saved.');
            }
          }
        }
      } 
    }
  }
}

MySQL 表：

CREATE TABLE IF NOT EXISTS `ingredients` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `ingredient` varchar(250) NOT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `ingredient` (`ingredient`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

CREATE TABLE IF NOT EXISTS `ingredients_recipes` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `ingredient_id` int(11) NOT NULL,
  `recipe_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

CREATE TABLE IF NOT EXISTS `recipes` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `recipe` varchar(250) NOT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `recipe` (`recipe`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

我的问题：

我如何在食谱和成分字段中保留现有数据并继续在成分食谱字段中保存相关数据？

4

3 回答 3

3

'unique' => 'keepExisting', 不是为了这个。它的作用是将附加行的现有信息保留在连接表中，但它的作用仍然与'unique' => true.

见： http ://book.cakephp.org/2.0/en/models/associations-linking-models-together.html#ref-habtm-arrays

您需要做的就是将其设置为 false。

于 2012-05-08T19:01:45.563 回答
1

由于配方和成分记录已经存在，您应该能够获得他们的 id。然后在保存数据时，您只需提供 id 来保存新关系，例如

dataArray = array(
    'recipe'=>array('id'=>$recipeId),
    'ingredient'=>array('id'=>$ingredientId)
);

这样recipe，ingredient表中的记录就不会被修改或复制。

如果您的表单输入是文本而不是下拉列表等选择，您可能需要在保存关系之前手动查找 id。

于 2012-09-10T23:03:38.070 回答
0

在配方和成分模型中以及从配方控制器中使 unique=false

$this->Recipe->saveAll($this->request->data)

我认为这会奏效

于 2015-08-03T04:03:10.327 回答