[support] Content type modules, install and uninstall code
Alex Adams
alex at a2technology.com
Wed Jun 1 00:12:37 UTC 2011
Next question. How do you copy code out of Dreamweaver and have it come out
looking right?
--
Alex Adams
hawkVision ‹ see the elephant for what it is
A2 Technology Partners, Inc.
831-724-1397
alex at a2technology.com
www.a2technology.com
From: Alex Adams <alex at a2technology.com>
Reply-To: <support at drupal.org>
Date: Tue, 31 May 2011 16:51:09 -0700
To: <support at drupal.org>
Subject: [support] Content type modules, install and uninstall code
I¹m new to Drupal. A very experienced programmer, but new to Drupal. I
have worked my way through Beginning Drupal 7 by Todd Tomlinson and Pro
Drupal 7 Development by Todd Tomlinson and John K VanDyk. I¹ve watched some
videos and online code examples.
Here¹s where I am in my project. The site is set up, contributed modules
installed, base theme installed. I¹m beginning to add 13 custom content
types. I want them to be added from modules, 1 for each type since there
will be a cafeteria plan. There¹s much more, but I¹m stuck here.
In the books there was a example of adding one field to a new content type.
All created in a module. The exercise worked great. However, when I try it
with one of my modules that has multiple fields, things get screwed up.
- The fields are added to the database, but they do not appear on the form.
- During uninstall, the field tables are not removed from the database.
- I don¹t know how to set all of the properties of the data field or widget
that I can when I am creating a custom content type using the administrative
pages.
- I want the fields to be contained in fieldsets upon installation. I can
do this if I am creating a form from scratch with code, but how do I do this
in a custom content type module.install script?
I¹ve screwed around with this so much now that I¹m not sure when what
stopped working.
Here are some code snippets I¹ve tried.
----
function _job_post_installed_fields() { $t = get_t(); return array(
'job_post_company' => array( 'field_name' => 'job_post_company',
'label' => $t('Company posting the job listing'), 'type' =>
'text', ), 'job_post_color' => array( 'field_name'
=> 'job_post_color', 'label' => $t('Job post color'),
'type' => 'text', ), ); } /** * return a structured array
defining the field instances associated with this content type */ function
_job_post_installed_instances() { $t = get_t(); return array(
'job_post_company' => array( 'field_name' => 'job_post_company',
'type' => 'text', 'label' => $t('Company posting the job
listing'), 'widget' => array( 'type' =>
'text_textfield', ), 'display' => array(
'example_node_list' => array( 'label' => $t('Company
posting the job listing'), 'type' => 'text',
), ), ), 'job_post_color' => array(
'field_name' => 'job_post_color', 'type' => 'text',
'label' => $t('Job post color'), 'widget' => array(
'type' => 'text_textfield', ), 'display' => array(
'example_node_list' => array( 'label' => $t('Job post
color'), 'type' => 'text', ),
), ), ); }
----
And
----
function _hawk_topic_installed_fields() { $t = get_t(); return
array( 'hawk_topic_type' => array( 'field_name' =>
'hawk_topic_type', 'label' => $t('hawk Topic Type'),
'type' => 'text', 'settings' => array(
'max_length' => 50, ), ), 'hawk_topic_color' =>
array( 'field_name' => 'hawk_topic_color', 'label' =>
$t('hawk Topic Color'), 'type' => 'text', 'settings'
=> array( 'max_length' => 20, ), ), ); }
/** * return a structured array defining the field instances associated with
this content type */ function _hawk_topic_installed_instances() { $t =
get_t(); return array( 'hawk_topic_type' => array(
'field_name' => 'hawk_topic_type', 'type' => 'text',
'label' => $t('Type of topic'), 'widget' => array(
'type' => 'text_textfield', 'settings' => array('size' =>
60), ), 'display' => array(
'example_node_list' => array( 'label' => $t('Type of
topic'), 'type' => 'text', ),
), ), 'hawk_topic_color' => array( 'field_name' =>
'hawk_topic_color', 'type' => 'text', 'label' =>
$t('Color of topic'), 'widget' => array( 'type' =>
'text_textfield', 'settings' => array('size' => 20),
), 'display' => array( 'example_node_list' =>
array( 'label' => $t('Color of topic'),
'type' => 'text', ), ), ), ); }
----
The uninstall script seems to be right out of the book (pun intended).
----
function hawk_topic_uninstall() { // gather all the example content that
might have been created while this // module was enabled $sql =
'SELECT nid FROM {node} n WHERE n.type = :type'; $result = db_query($sql,
array(':type' => 'hawk_topic')); $nids = array (); foreach ($result as
$row) { $nids[] = $row->nid; } // delete all the nodes at
once node_delete_multiple($nids); // loop over each of the fields
defined by this moduel and delete // all instance of the field, their
data, and the field itself. foreach
(array_keys(_hawk_topic_installed_fields()) as $field) {
field_delete_field($field); } // loop over any remaining file
instances attached to the hawk_topic // content type (such as body field)
and delete them individually $instances = field_info_instances('node',
'hawk_topic'); foreach ($instances as $instance_name => $instance) {
field_delete_instance($instance); } // delete our content type
node_type_delete('hawk_topic'); // purge all field information
field_purge_batch(1000); }
----
Any ideas? Probably a beginners mistake?
Thanks in advance,
--
Alex Adams
hawkVision ‹ see the elephant for what it is
A2 Technology Partners, Inc.
831-724-1397
alex at a2technology.com
www.a2technology.com
--
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