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content_model_viewer.install
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content_model_viewer.install
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<?php
// $Id$
/**
* @file
*
* Installs the required database schema for storing display and control properties for the viewer.
*/
module_load_include('inc', 'content_model_viewer', 'content_model_viewer.db');
/**
* Implementation of hook_install.
*/
function content_model_viewer_install() {
drupal_install_schema('content_model_viewer');
content_model_viewer_add_foreign_key_constraints();
content_model_viewer_add_default_settings();
content_model_viewer_set_default_rules();
}
/**
* Implementation of hook_uninstall.
*/
function content_model_viewer_uninstall() {
drupal_uninstall_schema('content_model_viewer');
}
/**
* Adds foreign key constraints for all settings tables.
*
* On Delete of a Settings all tables with foreign key constrains will cascade the deletes.
*/
function content_model_viewer_add_foreign_key_constraints() {
$table = CONTENT_MODEL_VIEWER_SETTINGS_TABLE;
$constraint_query = <<<EOT
ALTER TABLE `{%table%}` ADD CONSTRAINT `{%table%}_model_id`
FOREIGN KEY (`model_id`)
REFERENCES `{$table}` (`id`)
ON DELETE CASCADE
ON UPDATE NO ACTION
EOT;
$tables = array(
CONTENT_MODEL_VIEWER_DATASTREAM_MIMETYPE_RULES_TABLE,
CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULES_TABLE,
CONTENT_MODEL_VIEWER_DATASTREAM_RELS_VIEW_DERIVED_RULES_TABLE,
CONTENT_MODEL_VIEWER_DATASTREAM_DSID_VIEW_DERIVED_RULES_TABLE
);
foreach ($tables as $table) {
$query = str_replace('%table%', $table, $constraint_query);
db_query($query);
}
}
/**
* Add the default settings model, this should not be removed from the database, unless the module
* is being uninstalled.
*/
function content_model_viewer_add_default_settings() {
$row = new stdClass();
db_query("INSERT INTO {%s} (`id`, `pid`, `view`, `download`) VALUES ('%d', 'default', '1', '1')", CONTENT_MODEL_VIEWER_SETTINGS_TABLE, CONTENT_MODEL_VIEWER_DEFAULT_SETTINGS_MODEL_ID);
}
/**
* Clears the default Settings and restores the default Settings.
*/
function content_model_viewer_set_default_rules() {
// Hide Fedora Specific Datastreams.
$table = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULES_TABLE;
$model_id = CONTENT_MODEL_VIEWER_DEFAULT_SETTINGS_MODEL_ID;
$rule = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT;
$hidden = array('POLICY', 'DC', 'RELS-EXT', 'RELS-INT', 'ISLANDORACM', 'COLLECTION_POLICY');
foreach ($hidden as $dsid) {
db_query("INSERT INTO {%s} (`model_id`, `dsid`, `type`, `view`, `download`) VALUES ('%d', '%s', '%d', '0', '0')", $table, $model_id, $dsid, $rule);
}
// Redirect PDF's to SWF's
$table = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_VIEW_DERIVED_RULES_TABLE;
$src_dsid = 'PDF';
$src_type = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT;
$dest_dsid = 'SWF';
$dest_type = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT;
db_query("INSERT INTO {%s} (`model_id`, `src_dsid`, `src_type`, `dest_dsid`, `dest_type`) VALUES ('%d', '%s', '%d', '%s', '%d')", $table, $model_id, $src_dsid, $src_type, $dest_dsid, $dest_type);
// RELS-INT
$table = CONTENT_MODEL_VIEWER_DATASTREAM_RELS_VIEW_DERIVED_RULES_TABLE;
$mime = 'application/pdf';
$xpath = '/*[local-name() = "hasSWF"]/@rdf:resource';
$matching = '[^\/]*$';
$type = CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_REGEX;
db_query("INSERT INTO {%s} (`model_id`, `mime`, `xpath`, `matching`, `type`) VALUES ('%d', '%s', '%d', '%s', '%d')", $table, $model_id, $mime, $xpath, $matching, $type);
}
/**
* Implementation of hook_schema.
*
* @return array
*/
function content_model_viewer_schema() {
$schema[CONTENT_MODEL_VIEWER_DATASTREAM_RELS_VIEW_DERIVED_RULES_TABLE] = array(
'description' => '',
'fields' => array(
'id' => array(
'type' => 'serial',
'not null' => TRUE,
),
'model_id' => array(
'type' => 'int',
'not null' => TRUE
),
'mime' => array(
'description' => t('A MIME type.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'xpath' => array(
'description' => t('An XPath type.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'matching' => array(
'description' => t('A Regex or string to match the value returned from XPath.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'type' => array(
'description' => t('The type of value within dsid.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT // Expected to 0 or 1, where 0 is exact and 1 in regex.
),
),
'primary key' => array('id'),
'indexes' => array(
'model_id' => array('model_id'),
),
);
$schema[CONTENT_MODEL_VIEWER_DATASTREAM_DSID_VIEW_DERIVED_RULES_TABLE] = array(
'description' => '',
'fields' => array(
'id' => array(
'type' => 'serial',
'not null' => TRUE,
),
'model_id' => array(
'type' => 'int',
'not null' => TRUE
),
'src_dsid' => array(
'description' => t('A MIME type.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'src_type' => array(
'description' => t('The type of value within dsid.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT // Expected to 0 or 1, where 0 is exact and 1 in regex.
),
'dest_dsid' => array(
'description' => t('A Regex or string to match the value returned from XPath.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'dest_type' => array(
'description' => t('The type of value within dsid.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT // Expected to 0 or 1, where 0 is exact and 1 in regex.
),
),
'primary key' => array('id'),
'indexes' => array(
'model_id' => array('model_id'),
),
);
$schema[CONTENT_MODEL_VIEWER_DATASTREAM_MIMETYPE_RULES_TABLE] = array(
'description' => t('This table is used to store rules for displaying/viewing/downloading datastreams for non-admin users.'),
'fields' => array(
'id' => array(
'type' => 'serial',
'not null' => TRUE,
),
'model_id' => array(
'type' => 'int',
'not null' => TRUE
),
'mime' => array(
'description' => t('A MIME type.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'view' => array(
'description' => t('TRUE if the user is allowed to view datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
'download' => array(
'description' => t('TRUE if the user is allowed to download datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
),
'primary key' => array('id'),
'indexes' => array(
'model_id' => array('model_id'),
),
);
$schema[CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULES_TABLE] = array(
'description' => t('This table is used to store rules for displaying/viewing/downloading datastreams for non-admin users.'),
'fields' => array(
'id' => array(
'type' => 'serial',
'not null' => TRUE,
),
'model_id' => array(
'type' => 'int',
'not null' => TRUE
),
'dsid' => array(
'description' => t('A regular expression for matching against a Datastream ID.'),
'type' => 'varchar',
'length' => 256,
'not null' => TRUE,
),
'type' => array(
'description' => t('The type of value within dsid.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => CONTENT_MODEL_VIEWER_DATASTREAM_DSID_RULE_TYPE_EXACT // Expected to 0 or 1, where 0 is exact and 1 in regex.
),
'view' => array(
'description' => t('TRUE if the user is allowed to view datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
'download' => array(
'description' => t('TRUE if the user is allowed to download datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
),
'primary key' => array('id'),
'indexes' => array(
'model_id' => array('model_id'),
),
);
/* Defines the point of customization */
$schema[CONTENT_MODEL_VIEWER_SETTINGS_TABLE] = array(
'description' => t('This table is used to store associations between XML Form API style form definitions, and the Content models that use them.'),
'fields' => array(
'id' => array(
'type' => 'serial',
'not null' => TRUE,
),
'pid' => array(
'description' => t('The content model pid.'),
'type' => 'varchar',
'length' => 64,
'not null' => TRUE
),
'view' => array(
'description' => t('TRUE if the user is allowed to view datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
'download' => array(
'description' => t('TRUE if the user is allowed to download datastreams that match this rule FALSE otherwise.'),
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
'default' => 1,
),
),
'primary key' => array('id'),
'unique keys' => array(
'pid' => array('pid')
),
);
return $schema;
}