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@@ -119,6 +119,124 @@ class TripalEntityController extends EntityAPIController {
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}
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}
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+ /**
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+ * Sets the URL alias for an entity.
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+ */
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+ public function setAlias($entity, $alias = NULL) {
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+ $source_url = "bio-data/$entity->id";
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+
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+ // If no alias was supplied then we should try to generate one using the
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+ // default format set by admins.
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+ if (!$alias) {
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+
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+ // First get the format for the url alias based on the bundle of the entity.
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+ $bundle_entity = tripal_bundle_load($entity->bundle);
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+ $alias = tripal_get_bundle_variable('url_format', $bundle_entity->id);
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+
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+ // Determine which tokens were used in the format string
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+ if (preg_match_all('/\[\w+\]/', $alias, $matches)) {
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+ $used_tokens = $matches[0];
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+
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+ foreach($used_tokens as $token) {
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+ $field = str_replace(array('.','[',']'),array('__','',''),$token);
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+
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+ $value = '';
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+ if (isset($entity->{$field})) {
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+
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+ // Render the value from the field.
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+ // @TODO: Handle the case where thefield is empty... currently returns error.
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+ $field_value = field_get_items('TripalEntity', $entity, $field);
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+ $field_render_arr = field_view_value('TripalEntity', $entity, $field, $field_value[0]);
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+ $value = render($field_render_arr);
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+ }
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+ $alias = str_replace($token, trim($value), $alias);
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+ }
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+ }
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+ }
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+
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+ // Make sure the alias doesn't contain spaces.
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+ $alias = preg_replace('/\s+/','-',$alias);
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+ // Or any non alpha numeric characters.
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+ $alias = preg_replace('/[^a-zA-Z0-9\-\/]/','',$alias);
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+ $alias = preg_replace('/_/','-',$alias);
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+
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+ if ($alias) {
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+
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+ // Determine if this alias has already been used.
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+ $num_aliases = db_query('SELECT count(*) as num_alias FROM {url_alias} WHERE alias=:alias',
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+ array(':alias' => $alias))->fetchField();
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+
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+ // Either there isn't an alias yet so we just create one.
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+ // OR an Alias already exists but we would like to add a new one.
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+ if ($num_aliases == 0) {
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+
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+ // First delete any previous alias' for this entity.
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+ path_delete(array('source' => $source_url));
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+
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+ // Then save the new one.
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+ $path = array('source' => $source_url, 'alias' => $alias);
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+ path_save($path);
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+ }
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+ // If there is only one alias matching then it might just be that we already
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+ // assigned this alias to this entity in a previous save.
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+ elseif ($num_aliases == 1) {
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+
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+ // Checking to see if the single alias is for the same entity and if not
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+ // warning the admin that the alias is already used (ie: not unique?)
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+ $same_alias = db_query('SELECT count(*) as num_alias FROM {url_alias} WHERE alias=:alias AND source=:source',
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+ array(':alias' => $alias, ':source' => $source_url))->fetchField();
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+ if (!$same_alias) {
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+
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+ $msg = 'The URL alias, %alias, already exists for another page. Please ensure the pattern
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+ supplied on the <a href="!link" target="_blank">%type Edit Page</a> under URL Path options is unique.';
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+ $msg_var = array(
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+ '%alias' => $alias,
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+ '!link' => url("admin/structure/bio-data/manage/$entity->bundle"),
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+ '%type' => $entity->bundle
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+ );
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+ tripal_report_error(
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+ 'trpentity',
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+ TRIPAL_WARNING,
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+ $msg,
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+ $msg_var
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+ );
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+ drupal_set_message(t($msg, $msg_var), 'warning');
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+
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+ }
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+ }
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+ // If there are more then one alias' matching what we generated then there's
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+ // a real problem and we need to warn the administrator.
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+ else {
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+ $aliases = db_query('SELECT source FROM {url_alias} WHERE alias=:alias',
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+ array(':alias' => $alias))->fetchAll();
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+ $pages = array();
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+ foreach($aliases as $a) {
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+ $pages[] = $a->source;
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+ }
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+
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+ $msg = 'The URL alias, %alias, already exists for multiple pages! Please ensure the pattern
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+ supplied on the <a href="!link" target="_blank">%type Edit Page</a> under URL Path options is unique.';
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+ $msg_var = array(
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+ '%alias' => $alias,
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+ '!link' => url("admin/structure/bio-data/manage/$entity->bundle"),
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+ '%type' => $entity->bundle
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+ );
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+ drupal_set_message(t($msg, $msg_var), 'error');
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+
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+ $msg .= ' This url alias has already been used for the following pages: %pages.
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+ You can manually delete alias\' using a combination of path_load() and path_delete().';
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+ $msg_var['%pages'] = implode(', ', $pages);
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+ tripal_report_error(
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+ 'trpentity',
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+ TRIPAL_ERROR,
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+ $msg,
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+ $msg_var
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+ );
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+
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+ }
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+ }
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+ }
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+
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/**
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* Saves the custom fields using drupal_write_record().
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*/
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@@ -172,8 +290,10 @@ class TripalEntityController extends EntityAPIController {
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}
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// Set the title for this entity.
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- $ec = new TripalEntityController($entity->type);
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- $ec->setTitle($entity);
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+ $this->setTitle($entity);
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+
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+ // Set the path/url alias for this entity.
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+ $this->setAlias($entity);
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// Invoke either hook_entity_update() or hook_entity_insert().
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module_invoke_all('entity_postsave', $entity, $entity->type);
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Lacey Sanderson