Question

我对Drupal（7）和PHP相对较新，所以这可能是一个基本问题，因为我还没有找到到目前为止我在问题中需要的东西，因此是帖子。

我有一个drupal站点，它将连接到一个简单的CRUD REST Web服务（.net 4）来检索和发布数据。

我发现很难确定如何将从网站获得的数据加载到一个简单的drupal表单中。数据将通过JSON格式传输，但我不确定如何从响应数组中检索数据并填充表格的字段与从网站获得的数据。假设返回的JSON字段与表单字段名称匹配。

在我的例子中，我在提交函数中有http_request，实际上它应该在页面加载函数中。

所以问题是：如何从已检索的数据中填充表单的字段？从json_array中获取数据的语法是什么？页面加载时需要检索数据，实现这一目标的最佳方法是什么？

这是示例代码，我一直在提交中玩。我已经重建了，这是最好的方法将数据保留在屏幕上？我试图将'Surname'字段重置为新值但没有欢乐..

<?php

/**
* @file
* Test activation form
*/

/**
* Implements hook_menu()
*/
function activation_menu() {
  $items['activation'] = array(
  'title' => 'Registration form',
  'page callback' => 'drupal_get_form',
  'page arguments' => array('activation_nameform'),
  'access callback' => TRUE,
 // 'access_callback' => TRUE,
  'type' => MENU_NORMAL_ITEM
  );
  return $items;
  }

/**
* Define the form
*/
function activation_nameform() {
$form['Firstname'] = array(
'#Firstname' => t('Firstname'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your First name.'),
);

$form['Surname'] = array(
'#Surname' => t('Surname'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your Surname.'),
);

$form['Username'] = array(
'#Username' => t('Username'),
'#type' => 'textfield',
'#maxlength'=> 100,
'#description' => t('Please enter your Username.'),
);
$form['Password'] = array(
'#Password' => t('Password'),
'#type' => 'textfield',
'#maxlength'=> 8,
'#description' => t('Please enter your Surname.'),
);

$form['Organisation'] = array(
'#Organisation' => t('Organisation'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your Organisation.'),
);

$form['Address1'] = array(
'#Address1' => t('Address1'),
'#type' => 'textfield',
'#maxlength'=> 150,
'#description' => t('Please enter your first full line of Address.'),
);

$form['Address2'] = array(
'#Address2' => t('Address'),
'#type' => 'textfield',
'#maxlength'=> 150,
'#description' => t('Please enter your second full line of Address.'),
);

$form['Town_city'] = array(
'#Town_city' => t('Town_city'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your Town or City.'),
);

$form['Region'] = array(
'#Region' => t('Region'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your Region.'),
);

$form['PostCode'] = array(
'#PostCode' => t('PostCode'),
'#type' => 'textfield',
'#maxlength'=> 10,
'#description' => t('Please enter your PostCode.'),
);



$form['Postcode'] = array(
'#Postcode' => t('Postcode'),
'#type' => 'textfield',
'#maxlength'=> 15,
'#description' => t('Please enter your Postcode or ZIP code.'),
);

$form['Country_options'] = array(
'#type' => 'value',
'#value'=> array(t('UK'),t('Europe'),t('USA')),
);

$form['Country']['favourite_country'] = array(
'#title' => t('Favourite Country'),
'#type' => 'select',
'#value'=> array(t('UK'),t('Europe'),t('USA')),
'#description' => t('Please enter your Country'),
'#options' => $form['Country_options']['#value']
);

$form['Status'] = array(
'#Status' => t('Status'),
'#type' => 'textfield',
'#maxlength'=> 150,
'#description' => t('Please enter your first full line of Address.'),
);

$form['Add_credits'] = array(
'#Add_credits' => t('Add_credits'),
'#type' => 'textfield',
'#maxlength'=> 15,
'#description' => t('Please enter additional credits'),
);


$form['TandC'] = array(
'#TandC' => t('TandC'),
'#type' => 'textfield',
'#maxlength'=> 5,
'#description' => t('TandC'),
'#value'=> 30
);

$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Submit')
);
return $form;
}


/**
* Handle post - validation form submission
*/
function activation_nameform_submit($form,&$form_state) {
$name = $form_state['values']['Firstname'];
drupal_set_message(t('Thanks ,%name',
array('%name' => $name)));
$request = drupal_http_request('http://somewebsite.com/Customers/?ID=10');
$jsonarray =drupal_json_decode($request->data);

$form_state['rebuild']=TRUE;
$form['Surname']['#value']='Hello mother';

}

继续回答使用

echo '<pre>';var_dump($request); echo '</pre>'

我现在可以看到请求信息：

["data"]=>
  string(346) "?{"CustomerID":10,"FirstName":"Howard Philip","LastName":"Lovecraft","Organisation":"superglue","AddressID":null,"Status":0,"Credits":0,"Type":0,"ExpiryDate":"0001-01-01T00:00:00","UserName":"xxx@hotmail.com","Password":"","CustomerIconURL":"","CountryCode":"","LastUpdated":null,"DateCreated":"2013-04-18T07:43:10.123","ApplicationID":null}"
  ["protocol"]=>
  string(8) "HTTP/1.1"
  ["status_message"]=>
  string(2) "OK"
  ["headers"]=>
  array(6) {
    ["content-length"]=>
    string(3) "346"
    ["content-type"]=>
    string(31) "application/json; charset=utf-8"
    ["server"]=>
    string(17) "Microsoft-IIS/7.5"
    ["x-powered-by"]=>
    string(7) "ASP.NET"
    ["date"]=>
    string(29) "Fri, 14 Jun 2013 12:00:35 GMT"
    ["connection"]=>
    string(5) "close"
  }
  ["code"]=>
  string(3) "200"
}

现在将实施以下建议......

Answer 1

..问题的完整答案是，用于填充下面显示的字段的代码/ **

* Define the form
*/
function activation_nameform() {
$request = drupal_http_request('http://somewebsite.com/ML5/MLSvrSvc.svc/Customers/?ID=10');
$jsonarray = $request->data; 
//$jsonarray =json_decode('{"CustomerID":10,"FirstName":"Howard Philip","LastName":"Lovecraft","Organisation":"superglue","AddressID":null,"Status":0,"Credits":0,"Type":0,"ExpiryDate":"0001-01-01T00:00:00","UserName":"xxx@hotmail.com","Password":"","CustomerIconURL":"","CountryCode":"","LastUpdated":null,"DateCreated":"2013-04-18T07:43:10.123","ApplicationID":null}',TRUE);
echo '<pre2>';var_dump($jsonarray); echo '</pre2>';

$form['Firstname'] = array(
'#Firstname' => t('FirstName'),
'#type' => 'textfield',
'#maxlength'=> 50,
'#description' => t('Please enter your First name.'),
'#default_value' => $jsonarray['FirstName'],
);
.
.
.etc

然而，来自windows 7 /.net 64位系统的json存在一个解析问题，因此测试json字符串...已尝试过大多数utf8编码函数和preg_replace示例，但今天依然没有进展......也许是另一个问题，我们会看到。

Answer 2

在我的例子中，我在提交函数中有http_request，实际上它应该在页面加载函数中。

我会这样做

1）在定义表单时获取值，即activation_nameform（） 2）使用键默认值进行分配。

'#default_value' => // your variable here

3）执行一个printr函数xdebug会话以确保转换json对象。我之前我曾经遇到过一些问题。

如果上述方法不起作用，那么我会研究一下hook_form_alter函数。

4）返回类型是一个数组，因此您可以访问$ var [1]

$request = drupal_http_request('https://api.twitter.com/1/users/show.json? screen_name=TwitterAPI&include_entities=true');

$var= drupal_json_decode($request->data);
print $var[1]; // this should contain your value and then you can place for the default value.

参考 - http://webwash.net/articles/getting-started-json-drupal-7 https://api.drupal.org/api/drupal/includes!common.inc/function/drupal_json_decode/7 http://in3.php.net/json_decode

如何使用来自外部Web服务的数据加载drupal表单

2 个答案: