Drupal 7 Module Development

Installation Profiles
In this case we set the array key to store_create_content_types, which is the
callback function for this task. The type is set to normal, meaning this is a task
that is run, and may return HTML.
Then in our profile, we create the function store_create_content_types()
as follows:
function store_create_content_types(&$install_state) {
$types = array(
array(
'type' => 'page',
'name' => st('Page'),
'base' => 'node_content',
'description' => st("Use pages for your static content,
such as an 'About us' page."),
'custom' => 1,
'modified' => 1,
'locked' => 0,
),
array(
'type' => 'product',
'name' => st('Product'),
'base' => 'node_content',
'description' => st('Use products for items in the
store.'),
'custom' => 1,
'modified' => 1,
'locked' => 0,
),
);
}
foreach ($types as $type) {
$type = node_type_set_defaults($type);
node_type_save($type);
node_add_body_field($type);
}
In this case the function has one variable passed, it being $install_state. This is
a variable passed through the entire install process and each of the tasks. It contains
the state and all relevant information that needs to be passed around the installer.
The content of this function defines two content types. It also makes sure that all the
default information is filled in, and saves the types creating two new content types.
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