How to hide the login block from all pages:
<<RAW>>
Summary
This module takes the values entered for pre-defined “source” fields and dynamically sets the values of predefined “target” fields via jQuery and AJAX. The “source” and “target” fields can be of any field type; i.e., they are not limited to drop down menu fields. There are two primary use cases for this module: Creating content and Editing content. For Example, there is a Drupal site that allows it users to create “Location” and “Field Trip” content:
Fig. 1 Location content
Fig. 2 Field Trip content
Creating Content Use Case
Editing Content Use Case
Technical Description
Technically speaking, these two use cases above represent a bidirectional communication between jQuery (client side) and Drupal (server side) via AJAX: $.get(url, params, callback); More specifically:
Fig. 3 Active Field Sequence Diagram
(1) The change event of the source field triggers an (2) AJAX call to a URL (i.e. “add/field-trip”), (3) which is mapped to a Drupal function via ActiveField_menu() hook that (4) calls the ActiveField_getTargets() function, which executes a SQL query to the Drupal database and (5) returns a JSON via drupal_to_js() function; (6) this JSON is then passed into anonymous function (i.e. the “call back”), which (7) sets the value of the target fields.
The params parameter of the AJAX $.get(url, params, callback) function is not specified in Fig. 3 above because its value depends on respective use case scenario being solved. For example, if the target fields are not dependent on the values of the selected source fields, then value is “null”; in this scenario, the target field will be populated with default values when the change events of the source fields are fired. In scenarios where the values of the target fields are in fact dependent on the values selected for the source fields, then params would look something like:
{sourcefield1:$(’#srcfld1-id’).val();,srfld2:$(’#sourcefield2-id’).val();}In the Location/Field Trip scenario, params would look something like:
{date:$(’#edit-field-date-value’).val();, location:$(’#edit-field-location-key’).val();}The exact selector ids may vary from system to system.
A Drupal module can define its own theme and forms or interoperate with an existing theme and forms. The ActiveField module is an example of the latter. In order to realize this, the .js file containing the JavaScript must be called from the ActiveField module itself and not from the theme layer (c.f.). One way to realize this is via hook_alter_form(). This hook utilizes a form id to alter a form. The form id of the Field Trip form is “field_trip_node_form”:
<input id=”edit-field-trip-node-form” type=”hidden” value=”field_trip_node_form” name=”form_id“/>
FireBug, can be used to obtain the field ids on the page:
Code
The ActiveField module has the following files:
A .install file was not created because no database tables need to be created or deleted when the module is activated or disabled; or at least, not at this time. Currently the “source” and “target” fields are pre-defined via code (i.e. hard-coded) and a separate instance of the module (i.e. copy/paste/modify) may be required for each set of “source” and “target” fields. In ActiveField 2.0, the follow features will be implemented:
Software
References
Drupal API
jQuery
Books
Videos
Blogs
Articles
“Debugging”
<<RAW>>
Querying a Drupal database requires knowledge of SQL and Drupal’s Database Abstraction Layer. Once you have the result from the query, how you manipulate this returned object depends on how you want to utilize that data. For example:
Steps
Articles
NOTE: download and activate the Devel module
Modules
Articles
The Pageroute module “can be used to provide a user friendly wizard for creating and editing several nodes.”
Resources:
The ActiveSelect module is a “UI-less” module; that is, it is an API module. I am investigating this module and will update this page accordingly.
Description
The activeselect module defines the activeselect form element. A activeselect element is the same as a regular select element, except that when the user selects a new option (or set of options), different select element (the target element) gets its list updated. This is done using AJAX, and it is designed to degrade gracefully if the equired JavaScript support is not present. The target element can be either a regular select box, or another activeselect box which in turn can trigger another target box, which can trigger yet another, resulting in a hierarchical cascade of activeselect elements).Notes
- Activeselect now supports multiple targets, each of which can be updated simultaneously with a different set of options.
- This module is of no use by itself. You only need to install this module if another module (e.g. the category module) instructs you to do so.
- The JavaScript library for this module is based heavily on the Drupal core AutoComplete JavaScript library (autocomplete.js). Much credit and thanks goes to the authors of AutoComplete.Author: Jeremy Epstein
This first Drupal module to exploit ActiveSelect is the Category module: Using activeselect with category
The category module allows you to structure your site into a tree-like hierarchy of pages, and to classify your dynamic content, all within one seamless interface. It is built upon the foundations of the core book and taxonomy modules, and it provides all of the functionality of these two modules, and much more, to help you in customizing the navigational experience of your Drupal site.
Resources
There are several modules for working with Images in Drupal. In particular, the Image Field Gallery Field:
The Image Field Gallery Field is dependent on these modules:
After enabling the respective modules, the following menus are created:
Administer –> Site Configuration –>
How to Setup
Based on my research, there are two WYSIWYG HTML editors for Drupal:
I have installed on and used the TinyMCE editor in Wordpress. But, I have not been able to get it working on Drupal 5.x. Hence, I started looking for an alternative and discovered FCKEditor, which has some cool features. Currently, the best way to work with images in FCKEditor is to exploit the IMCE module, which requires no configuration.
In summary, three different pieces of software need to be downloaded:
Resources