// swad_timeline_database.c: social timeline operations with database

/*
    SWAD (Shared Workspace At a Distance),
    is a web platform developed at the University of Granada (Spain),
    and used to support university teaching.

    This file is part of SWAD core.
    Copyright (C) 1999-2021 Antonio Caņas Vargas

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General 3 License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/*********************************** Headers *********************************/
/*****************************************************************************/

#include "swad_database.h"
#include "swad_timeline.h"
#include "swad_timeline_publication.h"

/*****************************************************************************/
/****************************** Public constants *****************************/
/*****************************************************************************/

/*****************************************************************************/
/************************* Private constants and types ***********************/
/*****************************************************************************/

/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/

/*****************************************************************************/
/************************* Private global variables **************************/
/*****************************************************************************/

/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/

/*****************************************************************************/
/*************** Get final comments of a note from database ******************/
/*****************************************************************************/

unsigned TL_DB_GetFinalComments (long NotCod,
				 unsigned NumFinalCommentsToGet,
				 MYSQL_RES **mysql_res)
  {
   /***** Get final comments of a note from database *****/
   return (unsigned)
   DB_QuerySELECT (mysql_res,"can not get comments",
			     "SELECT * FROM "
			     "("
			     "SELECT tl_pubs.PubCod,"		// row[0]
				     "tl_pubs.PublisherCod,"	// row[1]
				     "tl_pubs.NotCod,"		// row[2]
				     "UNIX_TIMESTAMP("
				     "tl_pubs.TimePublish),"	// row[3]
				     "tl_comments.Txt,"		// row[4]
				     "tl_comments.MedCod"	// row[5]
			     " FROM tl_pubs,tl_comments"
			     " WHERE tl_pubs.NotCod=%ld"
			     " AND tl_pubs.PubType=%u"
			     " AND tl_pubs.PubCod=tl_comments.PubCod"
			     " ORDER BY tl_pubs.PubCod DESC LIMIT %u"
			     ") AS comments"
			     " ORDER BY PubCod",
			     NotCod,(unsigned) TL_Pub_COMMENT_TO_NOTE,
			     NumFinalCommentsToGet);
  }