base-item, utils: Split out the code to get mtime from SparqlCursor

The subsequent commit will use this elsewhere in the codebase to avoid
a CRITICAL.

!149

src/photos-base-item.c

@@ -2769,7 +2769,6 @@ photos_base_item_populate_from_cursor (PhotosBaseItem *self, TrackerSparqlCursor
   const gchar *identifier;
   const gchar *location;
   const gchar *mime_type;
-  const gchar *mtime;
   const gchar *orientation;
   const gchar *rdf_type;
   const gchar *resource_urn;
@@ -2807,18 +2806,7 @@ photos_base_item_populate_from_cursor (PhotosBaseItem *self, TrackerSparqlCursor
 
   favorite = tracker_sparql_cursor_get_boolean (cursor, PHOTOS_QUERY_COLUMNS_RESOURCE_FAVORITE);
 
-  priv->mtime = -1;
-  mtime = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_MTIME, NULL);
-  if (mtime != NULL)
-    {
-      g_autoptr (GDateTime) date_modified = NULL;
-
-      date_modified = g_date_time_new_from_iso8601 (mtime, NULL);
-      if (date_modified != NULL)
-        priv->mtime = g_date_time_to_unix (date_modified);
-    }
-  if (priv->mtime == -1)
-    priv->mtime = g_get_real_time () / 1000000;
+  priv->mtime = photos_utils_get_mtime_from_sparql_cursor (cursor);
   g_object_notify (G_OBJECT (self), "mtime");
 
   mime_type = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_MIME_TYPE, NULL);

src/photos-utils.c

 /*
  * Photos - access, organize and share your photos on GNOME
- * Copyright © 2012 – 2019 Red Hat, Inc.
+ * Copyright © 2012 – 2020 Red Hat, Inc.
  * Copyright © 2009 Yorba Foundation
  *
  * This program is free software: you can redistribute it and/or modify
@@ -971,6 +971,29 @@ photos_utils_get_icon_size_unscaled (void)
 }
 
 
+gint64
+photos_utils_get_mtime_from_sparql_cursor (TrackerSparqlCursor *cursor)
+{
+  const gchar *mtime_str;
+  gint64 mtime = -1;
+
+  mtime_str = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_MTIME, NULL);
+  if (mtime_str != NULL)
+    {
+      g_autoptr (GDateTime) date_modified = NULL;
+
+      date_modified = g_date_time_new_from_iso8601 (mtime_str, NULL);
+      if (date_modified != NULL)
+        mtime = g_date_time_to_unix (date_modified);
+    }
+
+  if (mtime == -1)
+    mtime = g_get_real_time () / 1000000;
+
+  return mtime;
+}
+
+
 gchar *
 photos_utils_get_pixbuf_common_suffix (GdkPixbufFormat *format)
 {

src/photos-utils.h

 /*
  * Photos - access, organize and share your photos on GNOME
- * Copyright © 2012 – 2019 Red Hat, Inc.
+ * Copyright © 2012 – 2020 Red Hat, Inc.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -134,6 +134,8 @@ gint             photos_utils_get_icon_size               (void);
 
 gint             photos_utils_get_icon_size_unscaled      (void);
 
+gint64           photos_utils_get_mtime_from_sparql_cursor (TrackerSparqlCursor *cursor);
+
 char*            photos_utils_get_pixbuf_common_suffix    (GdkPixbufFormat *format);
 
 const gchar     *photos_utils_get_provider_name           (PhotosBaseManager *src_mngr, PhotosBaseItem *item);