From 0c545403825322f0de495bb9b9b7a9bae7fc8318 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antonio=20Ca=C3=B1as=20Vargas?= <acanas@ugr.es>
Date: Wed, 17 Dec 2014 23:54:11 +0100
Subject: [PATCH] Version 14.38.7

---
 swad_changelog.h |  3 ++-
 swad_message.c   | 28 +++++++++++++++++++++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/swad_changelog.h b/swad_changelog.h
index f29909f42..ad1a5e33b 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -35,11 +35,12 @@
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 14.38.6 (2014/12/17)"
+#define Log_PLATFORM_VERSION	"SWAD 14.38.7 (2014/12/17)"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h | tail -1
 /*
+	Version 14.38.7  :Dic 17, 2014	Link to banned users is shown only if user has banned one or more users. (170792 lines)
 	Version 14.38.6  :Dic 17, 2014	Banned users option is integrated in received messages option. (170776 lines)
 	Version 14.38.5  :Dic 16, 2014	User's institution option is integrated in record card option. (170819 lines)
 	Version 14.38.4  :Dic 16, 2014	User's photo option is integrated in record card option. (170941 lines)
diff --git a/swad_message.c b/swad_message.c
index c932f0196..de1908305 100644
--- a/swad_message.c
+++ b/swad_message.c
@@ -69,6 +69,7 @@ extern struct Act_Actions Act_Actions[Act_NUM_ACTIONS];
 static void Msg_PutFormMsgUsrs (const char *Content);
 
 static void Msg_ShowSentOrReceivedMessages (Msg_TypeOfMessages_t TypeOfMessages);
+static unsigned long Msg_GetNumUsrsBannedByMe (void);
 static void Msg_PutLinkToViewBannedUsers(void);
 static void Msg_ConstructQueryToSelectSentOrReceivedMsgs (char *Query,Msg_TypeOfMessages_t TypeOfMessages,long UsrCod,
                                                           long FilterCrsCod,const char *FilterFromToSubquery);
@@ -1459,9 +1460,12 @@ void Msg_ShowSntMsgs (void)
 void Msg_ShowRecMsgs (void)
   {
    /***** Link to view banned users *****/
-   fprintf (Gbl.F.Out,"<div align=\"center\" style=\"margin-bottom:10px;\">");
-   Msg_PutLinkToViewBannedUsers ();
-   fprintf (Gbl.F.Out,"</div>");
+   if (Msg_GetNumUsrsBannedByMe ())
+     {
+      fprintf (Gbl.F.Out,"<div align=\"center\" style=\"margin-bottom:10px;\">");
+      Msg_PutLinkToViewBannedUsers ();
+      fprintf (Gbl.F.Out,"</div>");
+     }
 
    /***** Show the received messages *****/
    Msg_ShowSentOrReceivedMessages (Msg_MESSAGES_RECEIVED);
@@ -1601,6 +1605,20 @@ static void Msg_ShowSentOrReceivedMessages (Msg_TypeOfMessages_t TypeOfMessages)
    DB_FreeMySQLResult (&mysql_res);
   }
 
+/*****************************************************************************/
+/********************* Get number of user I have banned **********************/
+/*****************************************************************************/
+
+static unsigned long Msg_GetNumUsrsBannedByMe (void)
+  {
+   char Query[128];
+
+   /***** Get number of users I have banned *****/
+   sprintf (Query,"SELECT COUNT(*) FROM msg_banned WHERE ToUsrCod='%ld'",
+            Gbl.Usrs.Me.UsrDat.UsrCod);
+   return DB_QueryCOUNT (Query,"can not get number of users you have banned");
+  }
+
 /*****************************************************************************/
 /****************** Put a link (form) to view banned users *******************/
 /*****************************************************************************/
@@ -3311,14 +3329,14 @@ static void Msg_UnbanSender (void)
   }
 
 /*****************************************************************************/
-/************************ Unban a sender of a message ************************/
+/**************** Chech if a user is banned by another user ******************/
 /*****************************************************************************/
 
 static bool Msg_CheckIfUsrIsBanned (long FromUsrCod,long ToUsrCod)
   {
    char Query[256];
 
-   /***** Get if the message code is in table of sent messages not deleted *****/
+   /***** Get if FromUsrCod is banned by ToUsrCod *****/
    sprintf (Query,"SELECT COUNT(*) FROM msg_banned"
                   " WHERE FromUsrCod='%ld' AND ToUsrCod='%ld'",
             FromUsrCod,ToUsrCod);