问题（也许这篇文章可以帮助：嵌入表单在symfony 1.4中不能保存得很好）

您的nm关系定义不够明确。您的实体应该如下所示：

  FlipbookSkill：
 tableName：flipbook_skill 
列：
标题：{type：string（255）} 
关系：
 Flipbooks：
 class：Flipbook 
 refClass：FlipbookSkillRelation 
 local：skill_id 
 foreign：flipbook_id 
 / *不定义外国人和行为定义的行为* / 

 Flipbook：
 tableName：flipbook 
继承：
 extends：SvaGeneric 
 type：concrete 
列：
标题：{type：string（255）} 
 career_associations：{type：clob} 
技能：{type：string（255）}＃ ?? 
 skills_associations：{type：clob}＃为什么这样??? 
程序：{type：string（255）} 
 program_associations：{type：clob} 
 draft_id：{type：integer（10）} 
关系：
技能：
 class：FlipbookSkill 
 refClass：FlipbookSkillRelation 
 local：flipbook_id 
 foreign：skill_id 

 FlipbookSkillRelation：
 tableName：flipbook_skill_relation 
 actAs：
 SoftDelete：〜
选项：
列：
 flipbook_id：{type：integer（10），notnull：false} 
 skill_id：{type：integer 10），notnull：false} 
关系：
 Flipbook：
 foreignAlias：FlipbookSkills 
 local：flipbook_id 
 foreign：id 
 onDelete：CASCADE 
 FlipbookSkill：
 foreignAlias：FlipbookSkills 
 local：skill_id 
 foreign：id 
 onDelete：CASCADE 
 

然后，你允许的方法/ join是：

$ flipbookObject-> getSkills（）;因为flipbook实体n-m关系名称技能，所以返回一个FlipbookSkill DoctrineCollection。或者在查询（'f.innerJoin技能's）中

$ flipbookObject-> getFlipbookSkills（）;因为flipbookSkillRelation 1-n foreignAlias的名字，但可能你永远不会使用这个（因为你不关心关系本身，而是关心相关技能）。
...等

如果您有一个明确定义的schema.yml，那么您的表单应该正常工作。

Plus：
为什么要使用id文本输入小部件（flipbook_id）？
如果您正在使用教义实体，您为什么要使用sfWidgetFormSelectCheckbox？你应该使用像BaseEntity定义的sfWidgetFormDoctrineChoice。

我希望这可以帮助你。

I have setup 3 tables in symfony:

A flipbook table, A Skills table, and a relations table, to connect each skill id with each flipbook id.

WHen I built the model, symfony constructed everything correctly, and by default gave a drop-down menu for the skills, which had all skills from the skills table as options. You can select an option and it creates the appropriate relationships.

This is working (sort of). When you submit the form, it does not add the skill_id to the record. It just adds the auto-increment id to the skills relations table and neither the flipbook_id or skill_id. Aaaaaand, if you click more than one checkbox, you get this nice message:

invalid parameter number number of bound variables does not match number of tokens

Whaaaat does that mean? This has got to be a schema issue eh?

How about some code? yes.please.

Schema:

Flipbook:
  tableName: flipbook
  inheritance:
    extends: SvaGeneric
    type: concrete
  columns:
    title: { type: string(255) }
    career_associations: { type: clob }
    skills: { type: string(255) }
    skills_associations: { type: clob }
    program: { type: string(255) }
    program_associations: { type: clob }
    draft_id: { type: integer(10) }

FlipbookSkills:
  tableName: flipbook_skills
  columns:
    title: { type: string(255) }
  relations:
    Flipbook:
      foreignAlias: flipbook_skills
      alias: skills
      local: title
      onDelete: SET NULL   

FlipbookSkillRelations:
  tableName: flipbook_skill_relations
  actAs:
    SoftDelete: ~
  options:
  columns:
    flipbook_id: { type: integer(10), notnull: false }
    skill_id: { type: integer(10), notnull: false }
  relations:
    Flipbook:
      foreignAlias: flipbook_skills_flipbook
      alias: flipbook
      local: flipbook_id
      onDelete: CASCADE
    FlipbookSkills:
      foreignAlias: flipbook_skills_skills
      alias: flipbookskills
      local: skill_id
      onDelete: CASCADE

FlipbookSkillsRelationsForm.class.php:

$this->widgetSchema['flipbook_id'] = new sfWidgetFormInputText(array(), array('class' => 'text size-500'));

$this->widgetSchema['skill_id'] = new sfWidgetFormSelectCheckbox(array('choices' => "**WHAT GOES HERE??**"), array('class' => 'text size-500'));


$useFields = array(
  'flipbook_id',
  'skill_id',
);

$this->useFields($useFields);

Let me know if I should provide further code or explanation.

Here is the FlipbookSkillsTable.class generated in the model:

<?php

/**
 * FlipbookSkillsTable
 * 
 * This class has been auto-generated by the Doctrine ORM Framework
 */
class FlipbookSkillsTable extends Doctrine_Table
{
    /**
     * Returns an instance of this class.
     *
     * @return object FlipbookSkillsTable
     */
    public static function getInstance()
    {
        return Doctrine_Core::getTable('FlipbookSkills');
    }

    public function retrieveForFilter()
    {
      $res = $this->createQuery('s')
        ->select('s.id, s.name')
        ->orderBy('s.name ASC')
        ->execute(array(), Doctrine_Core::HYDRATE_NONE);

      // if you want an empty line
      $rets = array('' => '');
      foreach ($res as $ret)
      {
        $rets[$ret[0]] = $ret[1];
      }

      return $rets;
    }

    public function getAllFlipbookSkills() {
        $allSkills = Doctrine_Query::create()
            ->from('FlipbookSkills')
            ->orderBy('title ASC')
            ->execute();
    return $allSkills;
    }
}

UPDATE

I believe the issue is it is trying to bind the multiple values in the same record. It should make a new record for each skill chosen, like this:

id    flipbook_id    skill_id
1          2            1
2          2            2
3          2            3

SO I still don't have the schema nailed down correctly, otherwise Doctrine would know how to handle the data correct? Should I explicitly put one to many relationship?

Also, when submitted, it is only adding the flipbook_id value to the record. The skill_id record is 0

FLipbookRelationsForm:

class FlipbookSkillRelationsForm extends BaseFlipbookSkillRelationsForm
{
  public function configure()
  {

    $this->widgetSchema['skill_id'] = 
       new sfWidgetFormDoctrineChoice(array('model' => 
           $this->getRelatedModelName('flipbookskills'), 
            'expanded' => true, 'multiple' => true, 'add_empty' => false));

    $useFields = array(
            'flipbook_id',
            'skill_id',
        );

    $this->useFields($useFields);
  }
}

Multiple issues (maybe this post can help: Embedded forms in symfony 1.4 not saving propperly)

Your n-m relations doesn't look well defined. Your entities should looks like:

FlipbookSkill:
  tableName: flipbook_skill
  columns:
    title: { type: string(255) }
  relations:
    Flipbooks:
      class: Flipbook
      refClass: FlipbookSkillRelation
      local: skill_id
      foreign: flipbook_id
/* Not foreignAlias and onDelete behaviour defined */

Flipbook:
  tableName: flipbook
  inheritance:
    extends: SvaGeneric
    type: concrete
  columns:
    title: { type: string(255) }
    career_associations: { type: clob }
    skills: { type: string(255) } # why this????
    skills_associations: { type: clob }  # why this????
    program: { type: string(255) }
    program_associations: { type: clob }
    draft_id: { type: integer(10) }
  relations:
    Skills:
      class: FlipbookSkill
      refClass: FlipbookSkillRelation
      local: flipbook_id
      foreign: skill_id

FlipbookSkillRelation:
  tableName: flipbook_skill_relation
  actAs:
    SoftDelete: ~
  options:
  columns:
    flipbook_id: { type: integer(10), notnull: false }
    skill_id: { type: integer(10), notnull: false }
  relations:
    Flipbook:
      foreignAlias: FlipbookSkills
      local: flipbook_id
      foreign: id
      onDelete: CASCADE
    FlipbookSkill:
      foreignAlias: FlipbookSkills
      local: skill_id
      foreign: id
      onDelete: CASCADE

Then, you methods/join allowed are:

$flipbookObject->getSkills(); Because flipbook entity n-m relation name "Skills", wich returns a FlipbookSkill DoctrineCollection. Or in query ('f.innerJoin Skills s')

$flipbookObject->getFlipbookSkills(); Because flipbookSkillRelation 1-n foreignAlias name, but probably you will never use this (because you don't really care about relations inself, instead you care about related skills). ... etc

If you have a well defined schema.yml, then your forms should work properly.

Plus: why are you using and text input widget for an id field (flipbook_id) ???? And why are you using a sfWidgetFormSelectCheckbox if you are working with doctrine entities? You should use sfWidgetFormDoctrineChoice like the BaseEntity defines.

I hope this can help you.