mirror of https://github.com/acanas/swad-core.git
Version 20.77: May 18, 2021 New module swad_banner_database for database queries related to banners.
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acanas
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// swad_banner_database.c: banners operations with database
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/*
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SWAD (Shared Workspace At a Distance),
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is a web platform developed at the University of Granada (Spain),
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and used to support university teaching.
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This file is part of SWAD core.
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Copyright (C) 1999-2021 Antonio Cañas Vargas
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*****************************************************************************/
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/********************************* Headers ***********************************/
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/*****************************************************************************/
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// #include <stddef.h> // For NULL
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// #include <stdlib.h> // For calloc
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// #include <string.h> // For string functions
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#include "swad_banner.h"
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#include "swad_banner_database.h"
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// #include "swad_box.h"
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// #include "swad_constant.h"
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#include "swad_config.h"
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#include "swad_database.h"
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// #include "swad_error.h"
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// #include "swad_form.h"
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#include "swad_global.h"
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// #include "swad_HTML.h"
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// #include "swad_language.h"
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// #include "swad_link.h"
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// #include "swad_parameter.h"
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// #include "swad_photo.h"
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/*****************************************************************************/
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/************** External global variables from others modules ****************/
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/*****************************************************************************/
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extern struct Globals Gbl;
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/*****************************************************************************/
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/***************************** Private constants *****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/******************************* Private types *******************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/***************************** Private variables *****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/***************************** Private prototypes ****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/************************** Get list of all banners **************************/
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/*****************************************************************************/
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unsigned Ban_DB_GetAllBanners (MYSQL_RES **mysql_res)
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{
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return (unsigned)
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DB_QuerySELECT (mysql_res,"can not get banners",
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"SELECT BanCod," // row[0]
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"Hidden," // row[1]
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"ShortName," // row[2]
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"FullName," // row[3]
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"Img," // row[4]
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"WWW" // row[5]
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" FROM ban_banners"
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" ORDER BY ShortName");
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}
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/*****************************************************************************/
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/********************** Get list of visible banners **************************/
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/*****************************************************************************/
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unsigned Ban_DB_GetVisibleBanners (MYSQL_RES **mysql_res)
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{
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return (unsigned)
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DB_QuerySELECT (mysql_res,"can not get banners",
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"SELECT BanCod," // row[0]
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"Hidden," // row[1]
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"ShortName," // row[2]
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"FullName," // row[3]
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"Img," // row[4]
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"WWW" // row[5]
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" FROM ban_banners"
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" WHERE Hidden='N'"
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" ORDER BY ShortName");
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}
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/*****************************************************************************/
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/********************** Get list of visible banners **************************/
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/*****************************************************************************/
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unsigned Ban_DB_GetRandomBanners (MYSQL_RES **mysql_res)
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{
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// The banner(s) will change once in a while
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return (unsigned)
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DB_QuerySELECT (mysql_res,"can not get banners",
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"SELECT BanCod," // row[0]
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"Hidden," // row[1]
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"ShortName," // row[2]
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"FullName," // row[3]
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"Img," // row[4]
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"WWW" // row[5]
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" FROM ban_banners"
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" WHERE Hidden='N'"
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" ORDER BY RAND(%lu)"
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" LIMIT %u",
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(unsigned long) (Gbl.StartExecutionTimeUTC /
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Cfg_TIME_TO_CHANGE_BANNER),
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Cfg_NUMBER_OF_BANNERS);
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}
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/*****************************************************************************/
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/********************* Get data of a banner from database ********************/
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/*****************************************************************************/
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unsigned Ban_DB_GetDataOfBannerByCod (MYSQL_RES **mysql_res,long BanCod)
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{
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return (unsigned)
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DB_QuerySELECT (mysql_res,"can not get data of a banner",
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"SELECT Hidden," // row[0]
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"ShortName," // row[1]
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"FullName," // row[2]
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"Img," // row[3]
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"WWW" // row[4]
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" FROM ban_banners"
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" WHERE BanCod=%ld",
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BanCod);
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}
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/*****************************************************************************/
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/********************* Check if the name of banner exists ********************/
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/*****************************************************************************/
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bool Ban_DB_CheckIfBannerNameExists (const char *FieldName,const char *Name,long BanCod)
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{
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/***** Get number of banners with a name from database *****/
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return (DB_QueryCOUNT ("can not check if the name of a banner already existed",
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"SELECT COUNT(*)"
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" FROM ban_banners"
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" WHERE %s='%s'"
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" AND BanCod<>%ld",
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FieldName,Name,
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BanCod) != 0);
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}
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/*****************************************************************************/
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/**************************** Create a new banner ****************************/
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/*****************************************************************************/
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void Ban_DB_CreateBanner (const struct Ban_Banner *Ban)
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{
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/***** Create a new banner *****/
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DB_QueryINSERT ("can not create banner",
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"INSERT INTO ban_banners"
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" (Hidden,ShortName,FullName,Img,WWW)"
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" VALUES"
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" ('N','%s','%s','%s','%s')",
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Ban->ShrtName,
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Ban->FullName,
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Ban->Img,
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Ban->WWW);
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}
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/*****************************************************************************/
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/************************* Change hiddeness of banner ************************/
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/*****************************************************************************/
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void Ban_DB_ShowOrHideBanner (long BanCod,bool Hide)
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{
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DB_QueryUPDATE ("can not change status of a banner in database",
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"UPDATE ban_banners"
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" SET Hidden='%c'"
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" WHERE BanCod=%ld",
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Hide ? 'Y' :
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'N',
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BanCod);
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}
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/*****************************************************************************/
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/***************** Update banner name in table of banners ********************/
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/*****************************************************************************/
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void Ban_DB_UpdateBanName (long BanCod,const char *FieldName,
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const char *NewBanName)
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{
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DB_QueryUPDATE ("can not update the name of a banner",
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"UPDATE ban_banners"
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" SET %s='%s'"
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" WHERE BanCod=%ld",
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FieldName,NewBanName,
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BanCod);
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}
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/*****************************************************************************/
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/************** Update the table changing old image by new image *************/
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/*****************************************************************************/
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void Ban_DB_UpdateBanImg (long BanCod,
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const char NewImg[Ban_MAX_BYTES_IMAGE + 1])
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{
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DB_QueryUPDATE ("can not update the image of a banner",
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"UPDATE ban_banners"
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" SET Img='%s'"
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" WHERE BanCod=%ld",
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NewImg,
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BanCod);
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}
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/*****************************************************************************/
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/*************** Update the table changing old WWW by new WWW ****************/
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/*****************************************************************************/
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void Ban_DB_UpdateBanWWW (long BanCod,
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const char NewWWW[Cns_MAX_BYTES_WWW + 1])
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{
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DB_QueryUPDATE ("can not update the web of a banner",
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"UPDATE ban_banners"
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" SET WWW='%s'"
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" WHERE BanCod=%ld",
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NewWWW,
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BanCod);
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}
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/*****************************************************************************/
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/******************************* Remove a banner *****************************/
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/*****************************************************************************/
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void Ban_DB_RemoveBanner (long BanCod)
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{
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DB_QueryDELETE ("can not remove a banner",
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"DELETE FROM ban_banners"
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" WHERE BanCod=%ld",
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BanCod);
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}
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@ -0,0 +1,59 @@
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// swad_banner_database.h: banners operations with database
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#ifndef _SWAD_BAN_DB
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#define _SWAD_BAN_DB
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/*
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SWAD (Shared Workspace At a Distance),
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is a web platform developed at the University of Granada (Spain),
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and used to support university teaching.
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This file is part of SWAD core.
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Copyright (C) 1999-2021 Antonio Cañas Vargas
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*****************************************************************************/
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/********************************* Headers ***********************************/
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/*****************************************************************************/
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#include <mysql/mysql.h> // To access MySQL databases
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#include "swad_banner.h"
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/*****************************************************************************/
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/************************** Public types and constants ***********************/
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/*****************************************************************************/
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/*****************************************************************************/
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/***************************** Public prototypes *****************************/
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/*****************************************************************************/
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unsigned Ban_DB_GetAllBanners (MYSQL_RES **mysql_res);
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unsigned Ban_DB_GetVisibleBanners (MYSQL_RES **mysql_res);
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unsigned Ban_DB_GetRandomBanners (MYSQL_RES **mysql_res);
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unsigned Ban_DB_GetDataOfBannerByCod (MYSQL_RES **mysql_res,long BanCod);
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bool Ban_DB_CheckIfBannerNameExists (const char *FieldName,const char *Name,long BanCod);
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void Ban_DB_CreateBanner (const struct Ban_Banner *Ban);
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void Ban_DB_ShowOrHideBanner (long BanCod,bool Hide);
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void Ban_DB_UpdateBanName (long BanCod,const char *FieldName,
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const char *NewBanName);
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void Ban_DB_UpdateBanImg (long BanCod,
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const char NewImg[Ban_MAX_BYTES_IMAGE + 1]);
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void Ban_DB_UpdateBanWWW (long BanCod,
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const char NewWWW[Cns_MAX_BYTES_WWW + 1]);
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void Ban_DB_RemoveBanner (long BanCod);
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#endif
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