我创建了仅附加两个字段的自定义节点表单。每个字段都有自己的“保存”AJAX 按钮。单击“保存”按钮后,一切都会像默认节点表单提交一样进行。这是完整的代码:
/**
* Form;
*/
function mymodule_custom_form($form, &$form_state) {
$node = node_load(123);
$node->langcode = entity_language('node', $node);
// Store node object in form state
if (!isset($form_state['node'])) {
if (!isset($node->title)) {
$node->title = NULL;
}
node_object_prepare($node);
$form_state['node'] = $node;
}
else {
$node = $form_state['node'];
}
// Basic node information.
// These elements are just values so they are not even sent to the client.
$properties = array('nid', 'vid', 'uid', 'created', 'type', 'language');
foreach ($properties as $key) {
$form[$key] = array(
'#type' => 'value',
'#value' => isset($node->$key) ? $node->$key : NULL,
);
}
// Changed must be sent to the client, for later overwrite error checking.
$form['changed'] = array(
'#type' => 'hidden',
'#default_value' => isset($node->changed) ? $node->changed : NULL,
);
// TEST 1 field
field_attach_form('node', $node, $form, $form_state, $node->langcode, array(
'field_name' => 'field_test_1'
));
// Set the form prefix and suffix to support AJAX
$form['field_test_1']['#prefix'] = '<div id="wrapper-field-test-1">';
$form['field_test_1']['#suffix'] = '</div>';
// the submit button
$form['field_test_1']['save'] = array(
'#type' => 'submit',
'#value' => t('Save'),
'#name' => 'button-field-test-1',
'#ajax' => array(
'callback' => 'mymodule_custom_form_ajax_submit',
'wrapper' => 'wrapper-field-test-1',
'method' => 'replace',
'effect' => 'fade',
)
);
// TEST 2 field
field_attach_form('node', $node, $form, $form_state, $node->langcode, array(
'field_name' => 'field_test_2'
));
// Set the form prefix and suffix to support AJAX
$form['field_test_2']['#prefix'] = '<div id="wrapper-field-test-2">';
$form['field_test_2']['#suffix'] = '</div>';
// the submit button
$form['field_test_2']['save'] = array(
'#type' => 'submit',
'#value' => t('Save'),
'#name' => 'button-field-test-2',
'#ajax' => array(
'callback' => 'mymodule_custom_form_ajax_submit',
'wrapper' => 'wrapper-field-test-2',
'method' => 'replace',
'effect' => 'fade',
)
);
return $form;
}
/**
* Form validate;
*/
function mymodule_custom_form_validate($form, &$form_state) {
$field_name = reset($form_state['triggering_element']['#parents']);
// Validate only the stuff we need
$fields = array(
'field_test_1',
'field_test_2'
);
foreach ($fields as $field => $bundle) {
if ($field_name != $field) {
unset($form_state['values'][$field], $form_state['input'][$field]);
}
}
// $form_state['node'] contains the actual entity being edited, but we must
// not update it with form values that have not yet been validated, so we
// create a pseudo-entity to use during validation.
$node = (object) $form_state['values'];
node_validate($node, $form, $form_state);
entity_form_field_validate('node', $form, $form_state);
}
/**
* Form submit;
*/
function mymodule_custom_form_submit($form, &$form_state) {
// Execute all submit functions
$node = $form_state['node'];
entity_form_submit_build_entity('node', $node, $form, $form_state);
node_submit($node);
foreach (module_implements('node_submit') as $module) {
$function = $module . '_node_submit';
$function($node, $form, $form_state);
}
// Save the node
node_save($node);
$form_state['values']['nid'] = $node->nid;
$form_state['nid'] = $node->nid;
}
/**
* Form ajax submit;
*/
function mymodule_custom_form_ajax_submit($form, &$form_state) {
$field_name = reset($form_state['triggering_element']['#parents']);
// validate the form
drupal_validate_form('mymodule_custom_form', $form, $form_state);
// if there are errors, return the form to display the error messages
if (form_get_errors()) {
$form_state['rebuild'] = TRUE;
return $form[$field_name];
}
// process the form
mymodule_custom_form_submit($form, $form_state);
// Show the processing box
$form[$field_name] = array('#markup' => 'Thanks!');
$form[$field_name]['#prefix'] = '<div id="wrapper-' . str_replace('_', '-', $field_name) . '">';
$form[$field_name]['#suffix'] = '</div>';
// return the confirmation message
return $form[$field_name];
}
代码运行完美,只是
node_save($node)
导致 The content on this page has either been modified by another user, or you have already submitted modifications using this form. As a result, your changes cannot be saved.
错误。
如果我删除它,就没有错误。但我需要保存节点并触发所有钩子。
我认为此行引起的问题:
// process the form
mymodule_custom_form_submit($form, $form_state);
在你的ajax函数中,尝试在你的ajax函数中使用node_save。 mymodule_custom_form_submit 是通常使用的常规钩子。似乎是同时进行多个保存过程。
不知道你解决了没,我也遇到过类似的情况。
我避免了错误:此页面上的内容已被修改...,修改$form_state
中的
changed值。在您的提交功能中:
mymodule_custom_form_submit
,在node_save($node)
之后,添加此行:
$form_state['input']['changed'] = $node->changed;
Drupal 7 完整的 Save & Stay 回调函数,请添加表单包装:
function <MODULE_NAME>_node_ajax_save_callback($form, &$form_state){
// If error, return form.
if (form_get_errors()) {
return $form;
}
node_form_submit($form, $form_state);
$form['changed']['#value'] = $form_state['node']->changed;
return $form;
}