mirror of https://github.com/acanas/swad-core.git
138 lines
5.0 KiB
C
138 lines
5.0 KiB
C
// swad_media_database.c: processing of image/video 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) 1999-2023 Antonio Cañas 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 <string.h> // For string functions
|
|
|
|
#include "swad_database.h"
|
|
#include "swad_media.h"
|
|
|
|
/*****************************************************************************/
|
|
/***************************** Private constants *****************************/
|
|
/*****************************************************************************/
|
|
|
|
static const char *Med_DB_StrTypes[Med_NUM_TYPES] =
|
|
{
|
|
[Med_TYPE_NONE] = "none",
|
|
[Med_JPG ] = "jpg",
|
|
[Med_GIF ] = "gif",
|
|
[Med_MP4 ] = "mp4",
|
|
[Med_WEBM ] = "webm",
|
|
[Med_OGG ] = "ogg",
|
|
[Med_YOUTUBE ] = "youtube",
|
|
[Med_EMBED ] = "embed",
|
|
};
|
|
|
|
/*****************************************************************************/
|
|
/***************************** Private prototypes ****************************/
|
|
/*****************************************************************************/
|
|
|
|
static const char *Med_DB_GetStringType (Med_Type_t Type);
|
|
|
|
/*****************************************************************************/
|
|
/**** Get media name, title and URL from a query result and copy to struct ***/
|
|
/*****************************************************************************/
|
|
// Returns the number of rows got
|
|
|
|
unsigned Med_DB_GetMediaDataByCod (MYSQL_RES **mysql_res,long MedCod)
|
|
{
|
|
/***** Get data of a media from database *****/
|
|
return (unsigned)
|
|
DB_QuerySELECT (mysql_res,"can not get media",
|
|
"SELECT Type," // row[0]
|
|
"Name," // row[1]
|
|
"URL," // row[2]
|
|
"Title" // row[3]
|
|
" FROM med_media"
|
|
" WHERE MedCod=%ld",
|
|
MedCod);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/************************ Store media into database **************************/
|
|
/*****************************************************************************/
|
|
|
|
long Med_DB_StoreMedia (const struct Med_Media *Media)
|
|
{
|
|
/***** Insert media into database *****/
|
|
return DB_QueryINSERTandReturnCode ("can not create media",
|
|
"INSERT INTO med_media"
|
|
" (Type,Name,URL,Title)"
|
|
" VALUES"
|
|
" ('%s','%s','%s','%s')",
|
|
Med_DB_GetStringType (Media->Type),
|
|
Media->Name ? Media->Name :
|
|
"",
|
|
Media->URL ? Media->URL :
|
|
"",
|
|
Media->Title ? Media->Title :
|
|
"");
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/************************* Remove media from database ************************/
|
|
/*****************************************************************************/
|
|
|
|
void Med_DB_RemoveMedia (long MedCod)
|
|
{
|
|
/***** Remove entry for this media from database *****/
|
|
DB_QueryDELETE ("can not remove media",
|
|
"DELETE FROM med_media"
|
|
" WHERE MedCod=%ld",
|
|
MedCod);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/************************ Get media type from string *************************/
|
|
/*****************************************************************************/
|
|
|
|
Med_Type_t Med_DB_GetTypeFromStr (const char *Str)
|
|
{
|
|
Med_Type_t Type;
|
|
|
|
for (Type = (Med_Type_t) 0;
|
|
Type <= (Med_Type_t) (Med_NUM_TYPES - 1);
|
|
Type++)
|
|
if (!strcasecmp (Str,Med_DB_StrTypes[Type]))
|
|
return Type;
|
|
|
|
return Med_TYPE_NONE;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/*************** Get string media type in database from type *****************/
|
|
/*****************************************************************************/
|
|
|
|
static const char *Med_DB_GetStringType (Med_Type_t Type)
|
|
{
|
|
/***** Check if type is out of valid range *****/
|
|
if (Type > (Med_Type_t) (Med_NUM_TYPES - 1))
|
|
return Med_DB_StrTypes[Med_TYPE_NONE];
|
|
|
|
/***** Get string from type *****/
|
|
return Med_DB_StrTypes[Type];
|
|
}
|