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Version 20.58: Apr 06, 2021 Optimizations in database selects.

This commit is contained in:
acanas 2021-04-06 22:34:23 +02:00
parent db17a4465c
commit 364b133b28
8 changed files with 597 additions and 665 deletions
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3
swad_changelog.h
View File

@ -600,13 +600,14 @@ TODO: Salvador Romero Cort
TODO: FIX BUG, URGENT! En las fechas como parámetro Dat_WriteParamsIniEndDates(), por ejemplo al cambiar el color de la gráfica de accesos por día y hora, no se respeta la zona horaria.
*/
#define Log_PLATFORM_VERSION "SWAD 20.57 (2021-04-05)"
#define Log_PLATFORM_VERSION "SWAD 20.58 (2021-04-06)"
#define CSS_FILE "swad20.45.css"
#define JS_FILE "swad20.6.2.js"
/*
TODO: Rename CENTRE to CENTER in help wiki.
TODO: Rename ASSESSMENT.Announcements to ASSESSMENT.Calls_for_exams
Version 20.58: Apr 06, 2021 Optimizations in database selects. (308989 lines)
Version 20.57: Apr 05, 2021 Optimizations in database selects. (309041 lines)
Version 20.56.1: Apr 04, 2021 Optimizations in database selects. (309252 lines)
Version 20.56: Apr 04, 2021 Optimizations in database selects. (309296 lines)

36
swad_database.c
View File

@ -3836,6 +3836,42 @@ long DB_QuerySELECTCode (const char *MsgError,
return Cod;
}
/*****************************************************************************/
/**** Make a SELECT query for a unique row with one double from database *****/
/*****************************************************************************/
double DB_QuerySELECTDouble (const char *MsgError,
const char *fmt,...)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
va_list ap;
int NumBytesPrinted;
char *Query;
double DoubleNum;
/***** Create query string *****/
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Query,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Lay_NotEnoughMemoryExit ();
/***** Do SELECT query *****/
if (DB_QuerySELECTusingQueryStr (Query,&mysql_res,MsgError)) // Row found
{
row = mysql_fetch_row (mysql_res);
DoubleNum = Str_GetDoubleFromStr (row[0]);
}
else
DoubleNum = 0.0;
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return DoubleNum;
}
/*****************************************************************************/
/*********** Make a SELECT query from database using query string ************/
/*****************************************************************************/

2
swad_database.h
View File

@ -43,6 +43,8 @@ unsigned long DB_QuerySELECT (MYSQL_RES **mysql_res,const char *MsgError,
const char *fmt,...);
long DB_QuerySELECTCode (const char *MsgError,
const char *fmt,...);
double DB_QuerySELECTDouble (const char *MsgError,
const char *fmt,...);
long DB_GetNextCode (MYSQL_RES *mysql_res);
unsigned long DB_GetNumRowsTable (const char *Table);
unsigned long DB_QueryCOUNT (const char *MsgError,const char *fmt,...);

165
swad_exam.c
View File

@ -2040,110 +2040,91 @@ unsigned Exa_GetNumExams (Hie_Lvl_Level_t Scope)
double Exa_GetNumQstsPerCrsExam (Hie_Lvl_Level_t Scope)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
double NumQstsPerExam;
/***** Get number of questions per exam from database *****/
switch (Scope)
{
case Hie_Lvl_SYS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM exa_exams,"
"exa_set_questions"
" WHERE exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable");
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM exa_exams,"
"exa_set_questions"
" WHERE exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable");
case Hie_Lvl_CTY:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod);
case Hie_Lvl_INS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod);
case Hie_Lvl_CTR:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod);
case Hie_Lvl_DEG:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"exa_exams,"
"exa_set_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=exa_exams.CrsCod"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod);
case Hie_Lvl_CRS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per exam",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM exa_exams,"
"exa_set_questions"
" WHERE exa_exams.Cod=%ld"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Crs.CrsCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per exam",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(exa_set_questions.QstCod) AS NumQsts"
" FROM exa_exams,"
"exa_set_questions"
" WHERE exa_exams.Cod=%ld"
" AND exa_exams.ExaCod=exa_set_questions.ExaCod"
" GROUP BY exa_set_questions.ExaCod) AS NumQstsTable",
Gbl.Hierarchy.Crs.CrsCod);
default:
Lay_WrongScopeExit ();
break;
return 0.0; // Not reached
}
/***** Get average number of questions per exam *****/
row = mysql_fetch_row (mysql_res);
NumQstsPerExam = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return NumQstsPerExam;
}
/*****************************************************************************/

196
swad_figure.c
View File

@ -3895,8 +3895,6 @@ static void Fig_GetAndShowFollowStats (void)
"FollowedCod",
"FollowerCod"
};
MYSQL_RES *mysql_res;
MYSQL_ROW row;
unsigned Fol;
unsigned NumUsrsTotal;
unsigned NumUsrs;
@ -4048,122 +4046,116 @@ static void Fig_GetAndShowFollowStats (void)
switch (Gbl.Scope.Current)
{
case Hie_Lvl_SYS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(%s) AS N"
" FROM usr_follow"
" GROUP BY %s) AS F",
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(%s) AS N"
" FROM usr_follow"
" GROUP BY %s) AS F",
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
case Hie_Lvl_CTY:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Cty.CtyCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Cty.CtyCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
case Hie_Lvl_INS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Ins.InsCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Ins.InsCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
case Hie_Lvl_CTR:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Ctr.CtrCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM deg_degrees,"
"crs_courses,"
"crs_users,"
"usr_follow"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Ctr.CtrCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
case Hie_Lvl_DEG:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM crs_courses,"
"crs_users,"
"usr_follow"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Deg.DegCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM crs_courses,"
"crs_users,"
"usr_follow"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Deg.DegCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
case Hie_Lvl_CRS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM crs_users,"
"usr_follow"
" WHERE crs_users.CrsCod=%ld"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Crs.CrsCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
Average = DB_QuerySELECTDouble ("can not get number of questions"
" per survey",
"SELECT AVG(N)" // row[0]
" FROM (SELECT COUNT(DISTINCT usr_follow.%s) AS N"
" FROM crs_users,"
"usr_follow"
" WHERE crs_users.CrsCod=%ld"
" AND crs_users.UsrCod=usr_follow.%s"
" GROUP BY %s) AS F",
FieldDB[Fol],
Gbl.Hierarchy.Crs.CrsCod,
FieldDB[Fol],
FieldDB[1 - Fol]);
break;
default:
Lay_WrongScopeExit ();
Average = 0.0; // Not reached
break;
}
/***** Get average *****/
row = mysql_fetch_row (mysql_res);
Average = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
/***** Write number of followed per follower *****/
HTM_TR_Begin (NULL);

165
swad_game.c
View File

@ -2817,110 +2817,91 @@ unsigned Gam_GetNumGames (Hie_Lvl_Level_t Scope)
double Gam_GetNumQstsPerCrsGame (Hie_Lvl_Level_t Scope)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
double NumQstsPerGame;
/***** Get number of questions per game from database *****/
switch (Scope)
{
case Hie_Lvl_SYS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM gam_games,"
"gam_questions"
" WHERE gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable");
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM gam_games,"
"gam_questions"
" WHERE gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable");
case Hie_Lvl_CTY:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod);
case Hie_Lvl_INS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod);
case Hie_Lvl_CTR:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"gam_games,"
"gam_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod);
case Hie_Lvl_DEG:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"gam_games,"
"gam_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"gam_games,"
"gam_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=gam_games.CrsCod"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod);
case Hie_Lvl_CRS:
DB_QuerySELECT (&mysql_res,"can not get number of questions per game",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM gam_games,"
"gam_questions"
" WHERE gam_games.Cod=%ld"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Crs.CrsCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per game",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(gam_questions.QstCod) AS NumQsts"
" FROM gam_games,"
"gam_questions"
" WHERE gam_games.Cod=%ld"
" AND gam_games.GamCod=gam_questions.GamCod"
" GROUP BY gam_questions.GamCod) AS NumQstsTable",
Gbl.Hierarchy.Crs.CrsCod);
default:
Lay_WrongScopeExit ();
break;
return 0.0; // Not reached
}
/***** Get average number of questions per game *****/
row = mysql_fetch_row (mysql_res);
NumQstsPerGame = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return NumQstsPerGame;
}
/*****************************************************************************/

193
swad_survey.c
View File

@ -4131,125 +4131,100 @@ unsigned Svy_GetNumCrsSurveys (Hie_Lvl_Level_t Scope,unsigned *NumNotif)
double Svy_GetNumQstsPerCrsSurvey (Hie_Lvl_Level_t Scope)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
double NumQstsPerSurvey;
/***** Get number of questions per survey from database *****/
switch (Scope)
{
case Hie_Lvl_SYS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM svy_surveys,"
"svy_questions"
" WHERE svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM svy_surveys,"
"svy_questions"
" WHERE svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
case Hie_Lvl_CTY:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Cty.CtyCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
case Hie_Lvl_INS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Ins.InsCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
case Hie_Lvl_CTR:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM deg_degrees,"
"crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Ctr.CtrCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
case Hie_Lvl_DEG:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM crs_courses,"
"svy_surveys,"
"svy_questions"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=svy_surveys.Cod"
" AND svy_surveys.Scope='%s'"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Gbl.Hierarchy.Deg.DegCod,
Sco_GetDBStrFromScope (Hie_Lvl_CRS));
case Hie_Lvl_CRS:
DB_QuerySELECT (&mysql_res,"can not get number of questions"
" per survey",
"SELECT AVG(NumQsts)" // row[0]
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM svy_surveys,"
"svy_questions"
" WHERE svy_surveys.Scope='%s'"
" AND svy_surveys.Cod=%ld"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Sco_GetDBStrFromScope (Hie_Lvl_CRS),Gbl.Hierarchy.Crs.CrsCod);
break;
return DB_QuerySELECTDouble ("can not get number of questions per survey",
"SELECT AVG(NumQsts)"
" FROM (SELECT COUNT(svy_questions.QstCod) AS NumQsts"
" FROM svy_surveys,"
"svy_questions"
" WHERE svy_surveys.Scope='%s'"
" AND svy_surveys.Cod=%ld"
" AND svy_surveys.SvyCod=svy_questions.SvyCod"
" GROUP BY svy_questions.SvyCod) AS NumQstsTable",
Sco_GetDBStrFromScope (Hie_Lvl_CRS),Gbl.Hierarchy.Crs.CrsCod);
default:
Lay_WrongScopeExit ();
break;
return 0.0; // Not reached
}
/***** Get average number of questions per survey *****/
row = mysql_fetch_row (mysql_res);
NumQstsPerSurvey = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return NumQstsPerSurvey;
}

502
swad_user.c
View File

@ -9708,164 +9708,146 @@ unsigned Usr_GetCachedNumUsrsNotBelongingToAnyCrs (void)
static double Usr_GetNumCrssPerUsr (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Role)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
double NumCrssPerUsr;
/***** Get number of courses per user from database *****/
switch (Scope)
{
case Hie_Lvl_SYS:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(CrsCod) AS NumCrss"
" FROM crs_users"
" GROUP BY UsrCod) AS NumCrssTable");
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)"
" FROM (SELECT COUNT(CrsCod) AS NumCrss"
" FROM crs_users"
" GROUP BY UsrCod) AS NumCrssTable");
else
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(CrsCod) AS NumCrss"
" FROM crs_users"
" WHERE Role=%u"
" GROUP BY UsrCod) AS NumCrssTable",
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)"
" FROM (SELECT COUNT(CrsCod) AS NumCrss"
" FROM crs_users"
" WHERE Role=%u"
" GROUP BY UsrCod) AS NumCrssTable",
(unsigned) Role);
case Hie_Lvl_CTY:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)"
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
case Hie_Lvl_INS:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
case Hie_Lvl_CTR:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
case Hie_Lvl_DEG:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of courses per user",
"SELECT AVG(NumCrss)" // row[0]
" FROM (SELECT COUNT(crs_users.CrsCod) AS NumCrss"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.UsrCod) AS NumCrssTable",
Cod,
(unsigned) Role);
case Hie_Lvl_CRS:
return 1.0;
default:
Lay_WrongScopeExit ();
break;
return 0.0; // Not reached
}
/***** Get averga number of courses per user *****/
row = mysql_fetch_row (mysql_res);
NumCrssPerUsr = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return NumCrssPerUsr;
}
double Usr_GetCachedNumCrssPerUsr (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Role)
@ -9898,148 +9880,139 @@ double Usr_GetCachedNumCrssPerUsr (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Rol
static double Usr_GetNumUsrsPerCrs (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Role)
{
MYSQL_RES *mysql_res;
MYSQL_ROW row;
double NumUsrsPerCrs;
/***** Get number of users per course from database *****/
switch (Scope)
{
case Hie_Lvl_SYS:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(UsrCod) AS NumUsrs"
" FROM crs_users"
" GROUP BY CrsCod) AS NumUsrsTable");
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(UsrCod) AS NumUsrs"
" FROM crs_users"
" GROUP BY CrsCod) AS NumUsrsTable");
else
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(UsrCod) AS NumUsrs"
" FROM crs_users"
" WHERE Role=%u GROUP BY CrsCod) AS NumUsrsTable",
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(UsrCod) AS NumUsrs"
" FROM crs_users"
" WHERE Role=%u GROUP BY CrsCod) AS NumUsrsTable",
(unsigned) Role);
case Hie_Lvl_CTY:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
case Hie_Lvl_INS:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
case Hie_Lvl_CTR:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
case Hie_Lvl_DEG:
if (Role == Rol_UNK) // Any user
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod);
else
DB_QuerySELECT (&mysql_res,"can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
break;
return DB_QuerySELECTDouble ("can not get number of users per course",
"SELECT AVG(NumUsrs)" // row[0]
" FROM (SELECT COUNT(crs_users.UsrCod) AS NumUsrs"
" FROM crs_courses,"
"crs_users"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" AND crs_users.Role=%u"
" GROUP BY crs_users.CrsCod) AS NumUsrsTable",
Cod,
(unsigned) Role);
case Hie_Lvl_CRS:
return (double) Usr_GetNumUsrsInCrss (Hie_Lvl_CRS,Cod,
Role == Rol_UNK ? 1 << Rol_STD |
@ -10049,17 +10022,8 @@ static double Usr_GetNumUsrsPerCrs (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Ro
default:
Lay_WrongScopeExit ();
break;
return 0.0; // Not reached
}
/***** Get average number of users per course *****/
row = mysql_fetch_row (mysql_res);
NumUsrsPerCrs = Str_GetDoubleFromStr (row[0]);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
return NumUsrsPerCrs;
}
double Usr_GetCachedNumUsrsPerCrs (Hie_Lvl_Level_t Scope,long Cod,Rol_Role_t Role)