modules/content_migrate/modules/content_migrate.filefield.inc

   1 <?php
   2 /**
   3  * @file content_migrate.filefield.inc
   4  * Code to implement hook_content_migrate_field_alter, content_migrate_instance_alter() and content_migrate_data_record_alter()
   5  * on behalf of the former filefield and imagefield modules, moved into a separate file for efficiency.
   6  */
   7
   8 /**
   9  * Implements hook_content_migrate_field_alter().
  10  *
  11  * Use this to tweak the conversion of field settings
  12  * from the D6 style to the D7 style for specific
  13  * situations not handled by basic conversion,
  14  * as when field types or settings are changed.
  15  */
  16 function content_migrate_filefield_field_alter(&$field_value, $instance_value) {
  17
  18   switch ($instance_value['widget']['module']) {
  19     case 'imagefield':
  20       // Module names and types changed.
  21       $field_value['module'] = 'image';
  22       $field_value['type'] = 'image';
  23       // default_image is now a field setting.
  24       $field_value['settings']['default_image'] = $instance_value['widget']['settings']['default_image'];
  25       break;
  26     case 'filefield':
  27       // Module names and types changed.
  28       $field_value['module'] = 'file';
  29       $field_value['type'] = 'file';
  30       break;
  31   }
  32 }
  33
  34 /**
  35  * Implements hook_content_migrate_instance_alter().
  36  *
  37  * Use this to tweak the conversion of instance or widget settings
  38  * from the D6 style to the D7 style for specific
  39  * situations not handled by basic conversion, as when
  40  * formatter or widget names or settings are changed.
  41  */
  42 function content_migrate_filefield_instance_alter(&$instance_value, $field_value) {
  43
  44   switch ($instance_value['widget']['module']) {
  45
  46     case 'imagefield':
  47       // Module names and types changed.
  48       $instance_value['widget']['module'] = 'image';
  49       $instance_value['widget']['type'] = 'image';
  50
  51       // Most settings became instance settings instead of widget settings, with a couple name changes.
  52       $instance_value['settings']['file_directory'] = $instance_value['widget']['settings']['file_path'];
  53       unset($instance_value['widget']['settings']['file_path']);
  54       $instance_value['settings']['file_extensions'] = $instance_value['widget']['settings']['file_extensions'];
  55       unset($instance_value['widget']['settings']['file_extensions']);
  56       $settings = array(
  57         'max_filesize' => 0,
  58         'max_resolution' => 0,
  59         'min_resolution' => 0,
  60       );
  61       foreach ($settings as $setting => $default_value) {
  62         $instance_value['settings'][$setting] = isset($instance_value['widget']['settings'][$setting]) ? $instance_value['widget']['settings'][$setting] : $default_value;
  63         unset($instance_value['widget']['settings'][$setting]);
  64       }
  65
  66       // What is the difference between alt and custom_alt on the old field?
  67       $instance_value['settings']['alt_field'] = $instance_value['widget']['settings']['custom_alt'];
  68       unset($instance_value['widget']['settings']['custom_alt']);
  69       $instance_value['settings']['title_field'] = $instance_value['widget']['settings']['custom_title'];
  70       unset($instance_value['widget']['settings']['custom_title']);
  71
  72       // Many settings have no place in the new field array.
  73       unset($instance_value['widget']['settings']['title']);
  74       unset($instance_value['widget']['settings']['alt']);
  75       unset($instance_value['widget']['settings']['max_filesize_per_node']);
  76       unset($instance_value['widget']['settings']['title_type']);
  77
  78       // default_image is now a field setting.
  79       unset($instance_value['widget']['settings']['default_image']);
  80       break;
  81
  82     case 'filefield':
  83       // Module names and types changed.
  84       $instance_value['widget']['module'] = 'file';
  85       $instance_value['widget']['type'] = 'file_generic';
  86
  87       // Some settings had name changes.
  88       $instance_value['widget']['settings']['file_directory'] = $instance_value['widget']['settings']['file_path'];
  89       unset($instance_value['widget']['settings']['file_path']);
  90       $instance_value['widget']['settings']['max_filesize'] = $instance_value['widget']['settings']['max_filesize_per_file'];
  91       unset($instance_value['widget']['settings']['max_filesize_per_file']);
  92
  93       break;
  94   }
  95
  96 }
  97
  98
  99 /**
 100  * Implements hook_content_migrate_data_record_alter().
 101  *
 102  * Tweaks individual records in a field.
 103  */
 104 function content_migrate_filefield_data_record_alter(&$record, $field) {
 105
 106   switch($field['type']) {
 107     case 'image':
 108       // Map D6 imagefield field columns to D7 image field columns.
 109       if (!empty($record[$field['field_name'] . '_title']) && ($data = unserialize($record[$field['field_name'] . '_title']))) {
 110         $record[$field['field_name'] . '_alt'] = $data['alt'];
 111         $record[$field['field_name'] . '_title'] = $data['title'];
 112       }
 113       else {
 114         unset($record[$field['field_name'] . '_alt']);
 115         unset($record[$field['field_name'] . '_title']);
 116       }
 117
 118     // Fall through.
 119     case 'file':
 120       // Map D6 filefield field columns to D7 file field columns.
 121       if (!empty($record[$field['field_name'] . '_description']) && ($data = unserialize($record[$field['field_name'] . '_description']))) {
 122         $record[$field['field_name'] . '_description'] = $data['description'];
 123       }
 124       else {
 125         unset($record[$field['field_name'] . '_description']);
 126       }
 127
 128       // Copies imagefield data from the old 'files' table into 'files_managed' and sets file_usage
 129       // Mostly copied from system_update_7061, which does the same for the D6 core 'upload' module
 130
 131       $nid = $record['entity_id'];
 132       $fid = $record[$field['field_name'] . '_fid'];
 133
 134       if (empty($fid)) {
 135         $record = NULL;
 136         return;
 137       };
 138
 139       $file = db_select('files', 'f')->fields('f', array('fid', 'uid', 'filename', 'filepath', 'filemime', 'filesize', 'timestamp', 'status'))->condition('fid', $fid)->execute()->fetchObject();
 140
 141       $basename = variable_get('file_directory_path', conf_path() . '/files');
 142       $scheme = file_default_scheme() . '://';
 143
 144       // We will convert filepaths to uri using the default scheme
 145       // and stripping off the existing file directory path.
 146       $file->uri = $scheme . str_replace($basename, '', $file->filepath);
 147       $file->uri = file_stream_wrapper_uri_normalize($file->uri);
 148       unset($file->filepath);
 149
 150       // Insert into the file_managed table.
 151       // Each fid should only be stored once in file_managed.
 152       db_merge('file_managed')
 153         ->key(array(
 154           'fid' => $file->fid,
 155         ))
 156         ->fields(array(
 157           'uid' => $file->uid,
 158           'filename' => $file->filename,
 159           'uri' => $file->uri,
 160           'filemime' => $file->filemime,
 161           'filesize' => $file->filesize,
 162           'status' => $file->status,
 163           'timestamp' => $file->timestamp,
 164         ))
 165         ->execute();
 166
 167       // Add the usage entry for the file.
 168       file_usage_add($file, 'file', 'node', $nid);
 169       break;
 170   }
 171 }