field['field_name'];
// Get the FK column that links to the base table.
$table_name = $this->instance['settings']['chado_table'];
$base_table = $this->instance['settings']['base_table'];
$schema = chado_get_schema($table_name);
$pkey = $schema['primary key'][0];
$fkeys = array_values($schema['foreign keys'][$base_table]['columns']);
$fkey = $fkeys[0];
// Get the field defaults.
$record_id = '';
$fkey_value = $element['#entity']->chado_record_id;
$pub_id = '';
$uname = '';
// If the field already has a value then it will come through the $items
// array. This happens when editing an existing record.
if (count($items) > 0 and array_key_exists($delta, $items)) {
$record_id = tripal_get_field_item_keyval($items, $delta, 'chado-' . $table_name . '__' . $pkey, $record_id);
$pub_id = tripal_get_field_item_keyval($items, $delta, 'chado-' . $table_name . '__pub_id', $pub_id);
$uname = tripal_get_field_item_keyval($items, $delta, 'uniquename', $uname);
}
$schema = chado_get_schema('pub');
$widget['#table_name'] = $table_name;
$widget['#fkey_field'] = $fkey;
$widget['#prefix'] = "";
$widget['#suffix'] = "";
$widget['value'] = array(
'#type' => 'value',
'#value' => array_key_exists($delta, $items) ? $items[$delta]['value'] : '',
);
$widget['chado-' . $table_name . '__' . $pkey] = array(
'#type' => 'value',
'#default_value' => $record_id,
);
$widget['chado-' . $table_name . '__' . $fkey] = array(
'#type' => 'value',
'#default_value' => $fkey_value,
);
$widget['chado-' . $table_name . '__pub_id'] = array(
'#type' => 'value',
'#default_value' => $pub_id,
);
$widget['uniquename'] = array(
'#type' => 'textfield',
'#title' => t('Publication'),
'#default_value' => $uname,
'#autocomplete_path' => 'admin/tripal/storage/chado/auto_name/pub',
'#ajax' => array(
'callback' => "schema__publication_widget_form_ajax_callback",
'wrapper' => "$table_name-$delta",
'effect' => 'fade',
'method' => 'replace'
),
'#maxlength' => 100000,
);
}
/**
*
* @see TripalFieldWidget::submit()
*/
public function submit($form, &$form_state, $entity_type, $entity, $langcode, $delta) {
// Get the FK column that links to the base table.
$table_name = $this->instance['settings']['chado_table'];
$base_table = $this->instance['settings']['base_table'];
$schema = chado_get_schema($table_name);
$pkey = $schema['primary key'][0];
$fkeys = array_values($schema['foreign keys'][$base_table]['columns']);
$fkey = $fkeys[0];
$field_name = $this->field['field_name'];
// Get the field values.
$fkey_value = isset($form_state['values'][$field_name][$langcode][$delta]['value']) ? $form_state['values'][$field_name][$langcode][$delta]['value'] : '';
$pub_id = isset($form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__pub_id']) ? $form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__pub_id'] : '';
$uname = isset($form_state['values'][$field_name][$langcode][$delta]['uniquename']) ? $form_state['values'][$field_name][$langcode][$delta]['uniquename'] : '';
// If the user provided a uniquename then we want to set the foreign key
// value to be the chado_record_id
if ($uname and !$pub_id) {
$pub = chado_generate_var('pub', array('uniquename' => $uname));
$form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__pub_id'] = $pub->pub_id;
}
// In the widgetFrom function we automatically add the foreign key
// record. But if the user did not provide a publication we want to take
// it out so that the Chado field_storage infrastructure won't try to
// write a record.
if (!$uname and !$pub_id) {
$form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__' . $fkey] = '';
}
// If the user removed the publication from the pub_uniquename field
// then we want to clear out the rest of the hidden values.
// Leave the primary key so the record can be deleted.
if (!$uname and $pub_id) {
$form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__' . $fkey] = '';
$form_state['values'][$field_name][$langcode][$delta]['chado-' . $table_name . '__pub_id'] = '';
}
}
/**
* @see TripalFieldWidget::theme()
*/
function theme($element) {
$layout = "
";
return $layout;
}
}
/**
* An Ajax callback for the pub widget.
*/
function schema__publication_widget_form_ajax_callback($form, $form_state) {
$field_name = $form_state['triggering_element']['#parents'][0];
$delta = $form_state['triggering_element']['#parents'][2];
return $form[$field_name]['und'][$delta];
}