diff --git a/swad_changelog.h b/swad_changelog.h
index d55a1e1f..b6134796 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -629,10 +629,11 @@ TODO: Emilce Barrera Mesa: Podr
 TODO: Emilce Barrera Mesa: Mis estudiantes presentan muchas dificultades a la hora de poner la foto porque la plataforma es muy exigente respecto al fondo de la imagen.
 
 */
-#define Log_PLATFORM_VERSION	"SWAD 22.78.11 (2023-03-23)"
+#define Log_PLATFORM_VERSION	"SWAD 22.78.12 (2023-03-23)"
 #define CSS_FILE		"swad22.57.1.css"
 #define JS_FILE			"swad22.49.js"
 /*
+	Version 22.78.12: Mar 23, 2023  Code refactoring in plugins. (337651 lines)
 	Version 22.78.11: Mar 23, 2023  Code refactoring in places. (337652 lines)
 	Version 22.78.10: Mar 23, 2023  Code refactoring in notices. (337650 lines)
 	Version 22.78.9:  Mar 23, 2023  Code refactoring in mail domains. (337657 lines)
diff --git a/swad_plugin.c b/swad_plugin.c
index e0b857d9..dac478d9 100644
--- a/swad_plugin.c
+++ b/swad_plugin.c
@@ -81,6 +81,10 @@ static struct Plg_Plugin *Plg_EditingPlg;	// Plugin being edited.
 
 static void Plg_PutIconToEditPlugins (__attribute__((unused)) void *Args);
 static void Plg_EditPluginsInternal (void);
+
+static void Plg_GetPluginDataFromRow (MYSQL_RES *mysql_res,
+                                      struct Plg_Plugin *Plg);
+
 static void Plg_FreeListPlugins (struct Plg_Plugins *Plugins);
 static void Plg_ListPluginsForEdition (struct Plg_Plugins *Plugins);
 static void Plg_PutParPlgCod (void *PlgCod);
@@ -232,9 +236,7 @@ static void Plg_EditPluginsInternal (void)
 static void Plg_GetListPlugins (struct Plg_Plugins *Plugins)
   {
    MYSQL_RES *mysql_res;
-   MYSQL_ROW row;
    unsigned NumPlg;
-   struct Plg_Plugin *Plg;
 
    /***** Get plugins from database *****/
    if ((Plugins->Num = Plg_DB_GetListPlugins (&mysql_res))) // Plugins found...
@@ -248,25 +250,7 @@ static void Plg_GetListPlugins (struct Plg_Plugins *Plugins)
       for (NumPlg = 0;
 	   NumPlg < Plugins->Num;
 	   NumPlg++)
-        {
-         Plg = &Plugins->Lst[NumPlg];
-
-         /* Get next plugin */
-         row = mysql_fetch_row (mysql_res);
-
-         /* Get plugin code (row[0]) */
-         if ((Plg->PlgCod = Str_ConvertStrCodToLongCod (row[0])) <= 0)
-            Err_WrongPluginExit ();
-
-         /* Get name (row[1]), description (row[2), logo (row[3]),
-          * application key (row[4]), URL (row[5]) and IP (row[6]) of the plugin */
-         Str_Copy (Plg->Name       ,row[1],sizeof (Plg->Name       ) - 1);
-         Str_Copy (Plg->Description,row[2],sizeof (Plg->Description) - 1);
-         Str_Copy (Plg->Logo       ,row[3],sizeof (Plg->Logo       ) - 1);
-         Str_Copy (Plg->AppKey     ,row[4],sizeof (Plg->AppKey     ) - 1);
-         Str_Copy (Plg->URL        ,row[5],sizeof (Plg->URL        ) - 1);
-         Str_Copy (Plg->IP         ,row[6],sizeof (Plg->IP         ) - 1);
-        }
+         Plg_GetPluginDataFromRow (mysql_res,&Plugins->Lst[NumPlg]);
      }
    else
       Plugins->Lst = NULL;
@@ -276,13 +260,12 @@ static void Plg_GetListPlugins (struct Plg_Plugins *Plugins)
   }
 
 /*****************************************************************************/
-/*************************** Get data of a plugin ****************************/
+/******************** Get data of a plugin using its code ********************/
 /*****************************************************************************/
 
 bool Plg_GetPluginDataByCod (struct Plg_Plugin *Plg)
   {
    MYSQL_RES *mysql_res;
-   MYSQL_ROW row;
    bool PluginFound;
 
    /***** Clear data *****/
@@ -300,19 +283,8 @@ bool Plg_GetPluginDataByCod (struct Plg_Plugin *Plg)
    /***** Get data of a plugin from database *****/
    if (Plg_DB_GetPluginDataByCod (&mysql_res,Plg->PlgCod)) // Plugin found...
      {
+      Plg_GetPluginDataFromRow (mysql_res,Plg);
       PluginFound = true;
-
-      /* Get row */
-      row = mysql_fetch_row (mysql_res);
-
-      /* Get name (row[0]), description (row[1]), logo (row[2]),
-         application key (row[3]), URL (row[4]) and IP (row[5]) of the plugin */
-      Str_Copy (Plg->Name       ,row[0],sizeof (Plg->Name       ) - 1);
-      Str_Copy (Plg->Description,row[1],sizeof (Plg->Description) - 1);
-      Str_Copy (Plg->Logo       ,row[2],sizeof (Plg->Logo       ) - 1);
-      Str_Copy (Plg->AppKey     ,row[3],sizeof (Plg->AppKey     ) - 1);
-      Str_Copy (Plg->URL        ,row[4],sizeof (Plg->URL        ) - 1);
-      Str_Copy (Plg->IP         ,row[5],sizeof (Plg->IP         ) - 1);
      }
    else
       PluginFound = false;
@@ -323,6 +295,33 @@ bool Plg_GetPluginDataByCod (struct Plg_Plugin *Plg)
    return PluginFound;
   }
 
+/*****************************************************************************/
+/****************** Get data of a plugin from database row *******************/
+/*****************************************************************************/
+
+static void Plg_GetPluginDataFromRow (MYSQL_RES *mysql_res,
+                                      struct Plg_Plugin *Plg)
+  {
+   MYSQL_ROW row;
+
+   /***** Get row *****/
+   row = mysql_fetch_row (mysql_res);
+
+   /***** Get plugin code (row[0]) *****/
+   if ((Plg->PlgCod = Str_ConvertStrCodToLongCod (row[0])) <= 0)
+      Err_WrongPluginExit ();
+
+   /***** Get name (row[1]), description (row[2), logo (row[3]),
+          application key (row[4]), URL (row[5])
+          and IP (row[6]) of the plugin *****/
+   Str_Copy (Plg->Name       ,row[1],sizeof (Plg->Name       ) - 1);
+   Str_Copy (Plg->Description,row[2],sizeof (Plg->Description) - 1);
+   Str_Copy (Plg->Logo       ,row[3],sizeof (Plg->Logo       ) - 1);
+   Str_Copy (Plg->AppKey     ,row[4],sizeof (Plg->AppKey     ) - 1);
+   Str_Copy (Plg->URL        ,row[5],sizeof (Plg->URL        ) - 1);
+   Str_Copy (Plg->IP         ,row[6],sizeof (Plg->IP         ) - 1);
+  }
+
 /*****************************************************************************/
 /*************************** Free list of plugins ****************************/
 /*****************************************************************************/
diff --git a/swad_plugin_database.c b/swad_plugin_database.c
index 6c9204e9..2be24d91 100644
--- a/swad_plugin_database.c
+++ b/swad_plugin_database.c
@@ -164,12 +164,13 @@ unsigned Plg_DB_GetPluginDataByCod (MYSQL_RES **mysql_res,long PlgCod)
   {
    return (unsigned)
    DB_QuerySELECT (mysql_res,"can not get data of a plugin",
-		   "SELECT Name,"		// row[0]
-			  "Description,"	// row[1]
-			  "Logo,"		// row[2]
-			  "AppKey,"		// row[3]
-			  "URL,"		// row[4]
-			  "IP"			// row[5]
+		   "SELECT PlgCod,"		// row[0]
+			  "Name,"		// row[1]
+			  "Description,"	// row[2]
+			  "Logo,"		// row[3]
+			  "AppKey,"		// row[4]
+			  "URL,"		// row[5]
+			  "IP"			// row[6]
 		    " FROM plg_plugins"
 		   " WHERE PlgCod=%ld",
 		   PlgCod);