需要一些关于Drupal $ form值的提示 [英] need some tips on Drupal $form value

问题描述

我有dpm（$ form）工作。太好了！这是更好的方式来查看数据。我仍然在努力弄清楚哪些地方来自哪里，例如：位置经度&纬度。 经度一词在20个不同的地方引用。我认为这是一个可能的地方隔离输入字段的文本框。 DPM（$形式[＃field_info] [ field_store_latitude] [ location_settings’] [形式] [字段]）;

有关如何追踪个人输入元素的任何提示？

---

**这不是答案，而是我第一个问题的补充**

hi googletorp -

我正在尝试使用hook_form_alter修改现有的表单。

经过几个小时的戳，我现在可以关闭一个窗体的位置（经度/纬度）部分，如这个：

unset（$ form ['field_store_latitude']）;

然而，只关闭纬度这样，不起作用：

unset（$ form ['field_store_latitude'] ['0'] ['＃location_settings'] ['form'] ['fields'] ['locpick']） ;

我找不到一个简单的方法来链接html源代码和名称与Krumo生成的数组。
在这种情况下，id被称为edit-field-store-latitude-0-locpick-user-latitude。

我需要一个食谱或指南以Drupal形式识别表单元素。

---

我想我确定了一个解决方案

 <？php 
 
 //允许您更改位置字段，这是难以访问的。 
 //这将需要在这里描述的位置模块中的补丁：
 // http://drupal.org/node/381458#comment-1287362 
 
 / ** 
 *实现自定义_element_alert（）钩子。 
 * / 
 
函数form_overrides_location_element_alter（& $ element）{
 
 //更改某些位置描述
 $ element ['locpick'] [' user_latitude'] ['＃description'] ='& nbsp;'。 t（'使用十进制符号'）; 
 $ element ['locpick'] ['user_longitude'] ['＃description'] ='& nbsp;'。 t（'参见< a href =！url target = _blank>我们的帮助页面< / a>获取更多信息'，array（'！url'=> url（'latlon_help'）））; 
 
 //或让它们完全消失
 unset（$ element ['locpick'] ['user_longitude']）; 
 unset（$ element ['locpick'] ['user_latitude']）; 
} 
 
 
 / ** 
 *执行form_alter钩子。 
 * / 
 
函数form_overrides_form_alter（& $ form，$ form_state，$ form_id）{
 switch（$ form_id）{
 
 case'user_profile_form '：
 //更改用户个人资料表单中的标题
 $ form ['account'] ['name'] ['＃title'] = t（'Login Name'）; 
 $ form ['account'] ['mail'] ['＃title'] = t（'Email'）; 
 break; 
 
 case'retailer_node_form'：
 //让我们检查应该是在这里... 
 print'< pre>'; 
 // print_r（$ form）; 
 dsm（$ form）; 
 print'< / pre>'; 
 
 //这可以删除城市
 unset（$ form ['field_myvar_latitude'] ['0'] ['＃location_settings'] ['form'] ['fields'] ['市']）; 
 
 //让我们试试#after_build属性
 $ form ['＃after_build'] [] ='mymodule_after_build_mynode'; 
 
 break; 
} 
} 
 
函数mymodule_after_build_mynode（$ form，$ form_values）{
 
 //这不适用于位置字段
 
 return $ form; 
}`在这里输入代码
  

解决方案

有改变位置字段的鬼祟方式，您需要做的是使用 #after_built 回调：

  / ** 
 *实现hook_form_alter（）。 
 * / 
函数mymodule_form_alter（& $ form，$ form_state，$ form_id）{
 if（$ form_id =='x_node_form'）{
 //更改位置字段
 if（isset（$ form ['locations']））{
 $ form ['locations'] ['＃after_build'] [] ='mymodule_alter_location_field'; 
} 
} 
} 
 
 / ** 
 *从位置元素中删除删除复选框。 
 * / 
函数mymodule_alter_location_field（$ form_element，& $ form_state）{
 $ location = $ form_element [0]; //你可以改变的位置字段
 return $ form_element; 
} 
  

I got dpm($form) working. Nice! This is much better way to view data. I am still trying to figure out where stuff is coming from eg: location longitude & latitude. The word 'longitude' is referenced in 20 different places. I thought this was a likely place to isolate text box for this input field. dpm($form['#field_info']['field_store_latitude']['location_settings']['form']['fields']);

Any tips on how to track down individual input elements?

---

** this is not an answer, but a supplement to my first question **

hi googletorp -

I am trying to modify existing forms using hook_form_alter.

After several hours of poking around, I can now turn off location (longitude/latitude) section of a form like this:

unset($form['field_store_latitude']);

However, turning off just the latitude like this, does not work:
unset($form['field_store_latitude']['0']['#location_settings']['form']['fields']['locpick']);

I cannot find a easy way to link id and names in html source with arrays produced by Krumo. In this case id is called "edit-field-store-latitude-0-locpick-user-latitude".

I need a recipe or guidelines for identifying form elemets in Drupal form.

---

I think I nailed down a solution

<?php

    // allows you to alter locations fields, which are tricky to access.
    // this will require a patch in location module described here:
    // http://drupal.org/node/381458#comment-1287362

    /**
    * Implementation of custom _element_alert() hook.   
    */

    function form_overrides_location_element_alter(&$element){

        // change some location descriptions
         $element['locpick']['user_latitude']['#description'] = '&nbsp;' . t('Use decimal notation.');
         $element['locpick']['user_longitude']['#description'] = '&nbsp;' . t('See <a href=!url target=_blank>our help page</a> for more information.', array('!url' => url('latlon_help')));

        // or make them disappear entirely
        unset($element['locpick']['user_longitude']);
        unset($element['locpick']['user_latitude']);
    }


    /**
    * Implementation of form_alter hook.    
    */

    function form_overrides_form_alter(&$form, $form_state, $form_id) {
    switch ($form_id) {

        case 'user_profile_form':
            // change titles in user profile form
             $form['account']['name']['#title'] = t('Login Name');         
             $form['account']['mail']['#title'] = t('Email');          
        break;

        case 'retailer_node_form':      
        // let's check what is supposed to be here...
            print '<pre>';
            //print_r($form);
            dsm($form);
            print '</pre>';     

            // this works to remove the city
            unset($form['field_myvar_latitude']['0']['#location_settings']['form']['fields']['city']);

            // let's try #after_build property
            $form['#after_build'][]='mymodule_after_build_mynode';

        break;
    }
  }

function mymodule_after_build_mynode($form, $form_values) {

    // This will not work for locations fields

    return $form;
}`enter code here`

解决方案

So there is sneaky way to alter the location field, what you need to do is to use the #after_built callback:

/**
 * Implements hook_form_alter().                                     
 */
function mymodule_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'x_node_form') {
    // alter the location field
    if (isset($form['locations'])) {
      $form['locations']['#after_build'][] = 'mymodule_alter_location_field';
    }
  }
}

/**
 * Remove the delete checkbox from location element.
 */
function mymodule_alter_location_field($form_element, &$form_state) {
  $location = $form_element[0]; // The location field which you can alter
  return $form_element;
}

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