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Bachir Soussi Chiadmi
2015-04-08 11:40:19 +02:00
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sites/all/modules/nodereference_url/LICENSE.txt Normal file
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
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For example, if you distribute copies of such a program, whether
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you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
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Also, for each author's protection and ours, we want to make certain
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Finally, any free program is threatened constantly by software
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The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
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running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
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a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
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part thereof, to be licensed as a whole at no charge to all third
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c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
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License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
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In addition, mere aggregation of another work not based on the Program
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under Section 2) in object code or executable form under the terms of
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a) Accompany it with the complete corresponding machine-readable
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compelled to copy the source along with the object code.
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except as expressly provided under this License. Any attempt
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conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
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distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
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such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
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Each version is given a distinguishing version number. If the Program
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either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
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Foundation.
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of preserving the free status of all derivatives of our free software and
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NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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The Node Reference URL Widget module adds a new widget to the Node Reference
CCK field type. It auto-populates a node reference field with a value from the
URL, and does not allow this value to be changed once set.
Node Reference URL Widget was written by Nate Haug.
This Module Made by Robots: http://www.lullabot.com
Dependencies
------------
* Node Reference (part of References)
Install
-------
Installing the Node Reference URL Widget is simple:
1) Copy the nodereference_url folder to the sites/all/modules folder in your
installation.
2) Enable the module using Administer -> Modules (admin/modules)
3) Add or edit a Node Reference field from admin/structure/types/manage/[type]/fields.
When configuring the field, use the "Reference from URL" option.
4) Follow on-screen help text to configure your Node Reference URL Widget.
Advanced: Build your own links
------------------------------
Normally you can prepopulate a Node Reference URL widget simply by creating a
link with the following structure:
As HTML:
<a href="/node/add/story/10">Add a story</a>
Or in PHP code:
<a href="<?php print url('node/add/story/' . $node->nid); ?>">Add a story</a>
However if using multiple Node Reference fields, you can populate them by
using a query string instead of embedding the IDs directly in the URL. Assuming
you had two fields, named "field_ref_a" and "field_ref_b", the URL to
prepopulate both of them at the same time would look like this:
In HTML:
<a href="/node/add/story?ref_a=10&ref_b=20">Add a story</a>
Or in PHP code:
<a href="<?php print url('node/add/story', array('query' => array('ref_a' => $nid1, 'ref_b' => $nid2))); ?>">Add a story</a>
Advanced: Support for non-standard URLs
---------------------------------------
By default Node Reference URL Widget will only work with node form paths that
match the standard Drupal install: "node/add/%type", where %type is a node type
like "blog" or "story". If you want to use Node Reference URL Widget on
non-standard URLs, you may do so by informing Node Reference URL Widget of these
special paths.
To do so, add additional paths to your settings.php with the following code:
$conf['nodereference_url_paths'] = array(
'node/add/%type/%nid',
'node/%/add/%type/%nid',
);
Only two tokens are supported:
%type: The node type that will be created.
%nid: The node ID that will be referenced.
The % wildcard may be used when including other dynamic IDs.
In the above example, Node Reference URL Widget will work at either
"node/add/story/2" or "node/1/add/story/2", where "2" is the node ID being
referenced. Important to note: The first URL will be used in the links that Node
Reference URL Widget provides. If needing advanced configuration of links, look
into the Custom Links module: http://drupal.org/project/custom_links.
Support
-------
If you experience a problem with this module or have a problem, file a
request or issue in the Node Reference URL Widget queue at
http://drupal.org/project/issues/nodereference_url. DO NOT POST IN THE FORUMS.
Posting in the issue queues is a direct line of communication with the module
authors.

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name = Node Reference URL Widget
description = Adds an additional widget to the Node Reference field that prepopulates a reference by the URL.
dependencies[] = node_reference
files[] = nodereference_url.module
package = Fields
core = 7.x
; Information added by drupal.org packaging script on 2011-09-24
version = "7.x-1.12"
core = "7.x"
project = "nodereference_url"
datestamp = "1316903507"

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<?php
/**
* @file
* Adds a "URL" widget to the Node Reference field.
*/
/**
* Implements hook_theme().
*/
function nodereference_url_theme() {
return array(
'nodereference_url' => array(
'render element' => 'element',
),
);
}
/**
* Implements hook_form_alter().
*/
function nodereference_url_form_alter(&$form, &$form_state, $form_id) {
if ($form_id == 'field_ui_field_edit_form' && isset($form['#instance']) && $form['#instance']['widget']['type'] == 'nodereference_url') {
// Hide settings that don't apply to this widget.
$form['field']['cardinality']['#type'] = 'value';
$form['instance']['description']['#title'] = t('Fallback widget help text');
$form['instance']['description']['#weight'] = -1;
}
}
/**
* Implements hook_widget_info().
*/
function nodereference_url_field_widget_info() {
return array(
'nodereference_url' => array(
'label' => t('Reference from URL'),
'description' => t('Node Reference calculated from URL'),
'field types' => array('node_reference'),
'settings' => array(
'fallback' => 'select',
'node_link' => array(),
'edit_fallback' => 0,
'autocomplete_match' => 'contains',
),
),
);
}
/**
* Implements hook_node_view().
*/
function nodereference_url_node_view($node, $view_mode, $langcode) {
$links = nodereference_url_build_all_links($node, $view_mode);
$node->content['links']['nodereference_url'] = array(
'#theme' => 'links__node__nodereference',
'#links' => $links,
'#attributes' => array('class' => array('links', 'inline')),
);
}
/**
* Build an array of links for nodereference_url widgets that point to this node.
*
* @param $node
* A fully loaded node object.
* @param $teaser
*
* @return
* An array of links for use with theme_links().
*/
function nodereference_url_build_all_links($node, $view_mode) {
$links = array();
$fields = field_info_instances('node');
$instances = array();
foreach ($fields as $target_type => $field) {
foreach ($field as $field_name => $instance) {
if ($instance['widget']['type'] == 'nodereference_url') {
$instances[$target_type][$field_name] = $instance;
}
}
}
foreach ($instances as $target_type => $instances_group) {
$alt_format = count($instances_group) > 1;
foreach ($instances_group as $field_name => $instance) {
$link_settings = $instance['widget']['settings']['node_link'];
if (isset($link_settings[$view_mode])) {
if ($link = nodereference_url_build_link($node, $instance, $view_mode, $alt_format)) {
$links[$target_type .'_'. $field_name] = $link;
}
}
}
}
return $links;
}
/**
* Build an individual link.
*
* Checks to ensure that the current node can be referenced by the field, ensures
* the current user has permission to create the field's node type, and builds
* the link based on the field's settings.
*
* @param $node
* A fully loaded node object.
* @param $instance
* A field instance.
* @param $teaser
* Optional. The current display mode of the node. Defaults to 'full'.
* @param $alt_format
* Optional. Use the alternative (safer but more verbose) format for
* generating the link. Defaults to FALSE.
*
* @return
* An array containing properties to build a single link.
*/
function nodereference_url_build_link($node, $instance, $view_mode = 'full', $alt_format = FALSE) {
$link = array();
// Load the $field, which contains field-level configuration (such as the
// Views and content type settings).
$field = field_info_field($instance['field_name']);
// Check if this widget is using a views listing.
if (module_exists('views') && !empty($field['settings']['view']['view_name'])) {
// TODO: Remove legacy function after final release of References module.
if (function_exists('node_reference_potential_references')) {
$referenceable = (bool) node_reference_potential_references($field, array('ids' => array($node->nid), 'limit' => 1));
}
else {
$referenceable = (bool) _node_reference_potential_references($field, '', NULL, array($node->nid), 1);
}
}
// Otherwise restrict by node type.
else {
$referenceable = !empty($field['settings']['referenceable_types'][$node->type]);
}
if ($referenceable && node_access('create', $instance['bundle'])) {
$link_settings = $instance['widget']['settings']['node_link'];
if (!empty($link_settings[$view_mode])) {
$link['title'] = t($link_settings['title']);
$link['query'] = array();
// Get the first "preferred" path for creating Node Reference links.
$link_urls = variable_get('nodereference_url_paths', array('node/add/%type/%nid'));
// Basic wildcard replacement: %type and %nid.
$link_url = $link_urls[0];
$link_url = str_replace('%type', str_replace('_', '-', $instance['bundle']), $link_url);
if ($alt_format) {
// The alternative format is used when there are multiple fields on the
// node edit form, so we can't just add an parameter at the end for NID.
$link_url = preg_replace('!/%nid$!', '', $link_url);
$field_name = str_replace('field_', '', $instance['field_name']);
$link['query'][$field_name] = $node->nid;
}
else {
$link_url = str_replace('%nid', $node->nid, $link_url);
}
$link['href'] = $link_url;
if (!empty($link_settings['hover_title'])) {
$link['attributes']['title'] = t($link_settings['hover_title']);
}
if (!empty($link_settings['destination'])) {
if ($link_settings['destination'] == 'source') {
$link['query']['destination'] = isset($_REQUEST['destination']) ? $_REQUEST['destination'] : $_GET['q'];
}
elseif ($link_settings['destination'] == 'node') {
$link['query']['destination'] = drupal_get_path_alias('node/'. $node->nid);
}
}
if (module_exists('og_context')) {
// First try to get context based on the current page URL.
$group_entity = og_get_context_by_url();
// Otherwise try getting the context based on the node being referenced.
if (!$group_entity) {
$group_entity = og_context();
}
if ($group_entity) {
$link['query']['gids'] = array($group_entity->gid);
}
}
}
}
return $link;
}
/**
* Helper function for themers to easily create a link.
*
* This function should be used in custom themes, rather than making manual
* links because it first checks a user's access before showing the link. If
* the user does not have access to create the node then an empty string will
* be returned.
*
* @param $node
* The node object that will be referenced.
* @param $field_name
* The name of the Node Reference field.
* @param $type_name
* The name of node type that contains the Node Reference field.
* @param $attributes
* Optional. An array of additional attributes to add to the link.
*/
function nodereference_url_create_link($node, $field_name, $type_name, $attributes = array()) {
$output = '';
$instance = field_info_instance('node', $field_name, $type_name);
$instance['widget']['settings']['node_link']['full'] = TRUE;
if ($link = nodereference_url_build_link($node, $instance)) {
$options = array();
$link_attributes = isset($link['attributes']) ? (array) $link['attributes'] : array();
$options['attributes'] = $attributes + $link_attributes;
if ($link['query']) {
$options['query'] = $link['query'];
}
$output = l($link['title'], $link['href'], $options);
}
return $output;
}
/**
* Implements of hook_elements_info().
*
* Any FAPI callbacks needed for individual widgets can be declared here,
* and the element will be passed to those callbacks for processing.
*
* Drupal will automatically theme the element using a theme with
* the same name as the hook_elements key.
*
* Autocomplete_path is not used by text_widget but other widgets can use it
* (see nodereference and userreference).
*/
function nodereference_url_element_info() {
return array(
'nodereference_url' => array(
'#input' => TRUE,
'#columns' => array('nid'),
'#delta' => 0,
'#process' => array('_nodereference_url_process'),
'#theme' => 'nodereference_url',
'#theme_wrappers' => array('form_element'),
),
);
}
/**
* Implements hook_field_widget_settings_form().
*/
function nodereference_url_field_widget_settings_form($field, $instance) {
$widget = $instance['widget'];
$defaults = field_info_widget_settings($widget['type']);
$settings = array_merge($defaults, $widget['settings']);
$form = array();
if ($widget['type'] == 'nodereference_url') {
$form['fallback'] = array(
'#type' => 'radios',
'#title' => t('Fallback behavior'),
'#options' => array(
'autocomplete' => t('Use autocomplete widget'),
'select' => t('Use select list widget'),
'page_not_found' => t('Display page not found error'),
'leave_blank' => t('Leave the field blank'),
),
'#default_value' => isset($settings['fallback']) ? $settings['fallback'] : 'autocomplete',
'#description' => t('If no content is referenced in the URL, determine how the form should be handled.'),
'#required' => TRUE,
'#element_validate' => array('nodereference_url_fallback_validate'),
'#weight' => -11,
);
$form['autocomplete_match'] = array(
'#type' => 'select',
'#title' => t('Autocomplete matching'),
'#default_value' => $settings['autocomplete_match'],
'#options' => array(
'starts_with' => t('Starts with'),
'contains' => t('Contains'),
),
'#description' => t('Select the method used to collect autocomplete suggestions. <br /> Note that <em>Contains</em> can cause performance issues on sites with thousands of nodes.'),
'#states' => array(
'visible' => array(
':input[name="instance[widget][settings][fallback]"]' => array('value' => 'autocomplete'),
),
),
'#weight' => -10,
);
$form['edit_fallback'] = array(
'#type' => 'checkbox',
'#title' => t('Use fallback behavior when editing content'),
'#default_value' => isset($settings['edit_fallback']) ? $settings['edit_fallback'] : FALSE,
'#weight' => -9,
);
$form['node_link'] = array(
'#tree' => TRUE,
'#type' => 'fieldset',
'#title' => t('Referenceable node links'),
'#element_validate' => array('nodereference_url_node_link_validate'),
'#description' => t('These settings will automatically make a link on nodes that can be referenced. Clicking the link will take the user to the new node form and prepopulate the value of this node reference field.'),
);
$form['node_link']['teaser'] = array(
'#type' => 'checkbox',
'#title' => t('Create link on the teaser view'),
'#default_value' => isset($settings['node_link']['teaser']) ? $settings['node_link']['teaser'] : FALSE,
);
$form['node_link']['full'] = array(
'#type' => 'checkbox',
'#title' => t('Create link on the full view'),
'#default_value' => isset($settings['node_link']['full']) ? $settings['node_link']['full'] : TRUE,
);
$form['node_link']['title'] = array(
'#type' => 'textfield',
'#title' => t('Link title'),
'#default_value' => isset($settings['node_link']['title']) ? $settings['node_link']['title'] : '',
'#description' => t('The title is the visible text for the link. This is required if you enable the content links.'),
);
$form['node_link']['hover_title'] = array(
'#type' => 'textfield',
'#title' => t('Link hover title'),
'#default_value' => isset($settings['node_link']['hover_title']) ? $settings['node_link']['hover_title'] : '',
'#description' => t('Text shown while hovering over the link.'),
);
$form['node_link']['destination'] = array(
'#type' => 'select',
'#title' => t('Return path'),
'#default_value' => isset($settings['node_link']['destination']) ? $settings['node_link']['destination'] : 'default',
'#options' => array(
'default' => t('The new node (no redirect)'),
'node' => t('The referenced node'),
'source' => t('The previous page'),
),
'#description' => t('After creating the new node through the link, determine where the user should be redirected.'),
);
}
return $form;
}
/**
* Implements hook_field_widget_error().
*/
function nodereference_url_field_widget_error($element, $error, $form, &$form_state) {
form_error($element['nid'], $error['message']);
}
/**
* Element validation function to ensure invalid options are not selected.
*/
function nodereference_url_fallback_validate($element, &$form_state) {
if ($form_state['values']['instance']['required'] && $form_state['values']['instance']['widget']['settings']['fallback'] == 'leave_blank') {
form_error($element, t('The fallback behavior cannot be left blank if this field is also required.'));
}
}
/**
* Element validation function that makes title required when creating a link.
*/
function nodereference_url_node_link_validate($element, &$form_state, $form) {
$link_settings = $form_state['values']['instance']['widget']['settings']['node_link'];
if (($link_settings['teaser'] || $link_settings['full']) && empty($link_settings['title'])) {
form_error($element['title'], t('A link title must be specified if creating links on referenceable content.'));
}
}
/**
* Implements hook_field_widget_form().
*/
function nodereference_url_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
$field_name = $field['field_name'];
$field_name_url = preg_replace('/^field_/', '', $field_name);
$referenced_nid = NULL;
$fallback = $instance['widget']['settings']['fallback'];
// Check for an existing NID.
if (isset($items[$delta]['nid']) && is_numeric($items[$delta]['nid'])) {
$referenced_nid = $items[$delta]['nid'];
}
// Check in the input array (used during AJAX requests).
elseif (!empty($form_state['input'][$field_name][$langcode][$delta]['nid'])) {
$referenced_nid = $form_state['input'][$field_name][$langcode][$delta]['nid'];
}
// Check for a reference in the query string.
elseif (isset($_GET[$field_name_url]) && is_numeric($_GET[$field_name_url])) {
$referenced_nid = $_GET[$field_name_url];
}
// Pull from the URL.
else {
$referenced_nid = nodereference_url_get_nid($field_name);
}
// Check that the NID is a valid reference.
if (!empty($referenced_nid)) {
// TODO: Remove legacy function after final release of References module.
if (function_exists('node_reference_potential_references')) {
$reference = node_reference_potential_references($field, array('ids' => array($referenced_nid), 'limit' => 1));
}
else {
$reference = _node_reference_potential_references($field, '', 'equals', array($referenced_nid), 1);
}
if (empty($reference)) {
$referenced_nid = NULL;
}
}
// If no NID is available or editing this field, use the fallback behavior.
if (empty($referenced_nid) || (!empty($instance['widget']['settings']['edit_fallback']) && (empty($form['#node_edit_form']) || !empty($form['#node']->{$field_name}[$langcode])))) {
// If not on a node/add page (such as editing a node that does not yet have
// a reference), switch to using an autocomplete widget.
if (in_array($fallback, array('page_not_found', 'leave_blank')) && nodereference_url_get_nid($field_name) === FALSE) {
$fallback = 'autocomplete';
}
// Page not found error.
// Check for the form_build_id to prevent throwing a page not found on
// manual builds. See http://drupal.org/node/397606.
if ($fallback == 'page_not_found') {
drupal_set_message(t('To create a new @type, a referenced piece of content must be specified in the link you followed.', array('@type' => $field['bundles']['node'][0])), 'error');
drupal_not_found();
exit();
}
// Fallback to select list.
elseif ($fallback == 'select') {
$element += array(
'#type' => 'select',
'#default_value' => isset($items[$delta]['nid']) ? $items[$delta]['nid'] : NULL,
'#options' => array('' => t('- None -')) + node_reference_options_list($field),
);
}
// Fallback to autocomplete.
elseif ($fallback == 'autocomplete') {
$element += array(
'#type' => 'textfield',
'#default_value' => isset($items[$delta]['nid']) ? $items[$delta]['nid'] : NULL,
'#autocomplete_path' => 'node_reference/autocomplete/' . $instance['entity_type'] . '/' . $instance['bundle'] . '/' . $field['field_name'],
'#value_callback' => 'node_reference_autocomplete_value',
'#element_validate' => array('node_reference_autocomplete_validate'),
);
}
}
if (isset($referenced_nid) && (empty($element['#type']))) {
$element += array(
'#title' => $instance['label'],
'#type' => 'nodereference_url',
'#field_name' => $field_name,
'#default_value' => $referenced_nid,
);
}
return array('nid' => $element);
}
/**
* Process an individual element.
*
* Build the form element. When creating a form using FAPI #process,
* note that $element['#value'] is already set.
*/
function _nodereference_url_process($element, $form_state, $form) {
if (isset($element['#value']) && is_numeric($element['#value']) && ($node = node_load($element['#value']))) {
$element['#display_title'] = check_plain($node->title);
}
else {
$element['#display_title'] = t('Referenced content not found.');
}
$element['nid'] = array(
'#type' => 'hidden',
'#value' => isset($element['#value']) ? $element['#value'] : $element['#value'],
'#parents' => $element['#parents'],
);
return $element;
}
/**
* Check the current URL and pull the referenced node from it.
*/
function nodereference_url_get_nid($field_name) {
$add_urls = variable_get('nodereference_url_paths', array('node/add/%type/%nid'));
$field_name_url = preg_replace('/^field_/', '', $field_name);
$referenced_nid = NULL;
foreach ($add_urls as $url) {
$args = explode('/', $url);
foreach ($args as $part => $arg) {
// Set the target NID if matching on this part of the URL.
if ($arg == '%nid') {
$referenced_nid = arg($part);
}
// Set the target NID based on the field name, allowing for multiple
// references in the same URL.
elseif ($arg == '%' . $field_name_url) {
$referenced_nid = arg($part);
}
// Skip any other wildcards in the URL.
elseif (strpos($arg, '%') === 0) {
continue;
}
// Arguments must line up exactly if they're not a wildcard.
elseif (arg($part) != $arg) {
$referenced_nid = FALSE;
break;
}
}
if ($referenced_nid) {
break;
}
}
return $referenced_nid;
}
/**
* FAPI theme for an individual elements.
*
* This theme function controls the display of the widget when an existing item
* is being referenced.
*
* $element['#display_title'] contains the title of the item being referenced.
* $element['#field_name'] contains the field name.
* $element['#delta] is the position of this element in the group.
*/
function theme_nodereference_url($variables) {
$element = $variables['element'];
$output = $element['#display_title'];
$output .= drupal_render_children($element);
return $output;
}