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swad-core/swad_institution_database.c

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// swad_institution_database.c: institutions 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 Public 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 ***********************************/
/*****************************************************************************/
#define _GNU_SOURCE // For asprintf
#include <stdio.h> // For asprintf
#include <stdlib.h> // For exit, system, malloc, free, rand, etc.
#include "swad_database.h"
#include "swad_error.h"
#include "swad_global.h"
#include "swad_hierarchy.h"
#include "swad_hierarchy_database.h"
#include "swad_institution.h"
#include "swad_institution_database.h"
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/************************** Create a new institution *************************/
/*****************************************************************************/
long Ins_DB_CreateInstitution (const struct Ins_Instit *Ins,Hie_Status_t Status)
{
return
DB_QueryINSERTandReturnCode ("can not create institution",
"INSERT INTO ins_instits"
" (CtyCod,Status,RequesterUsrCod,"
"ShortName,FullName,WWW)"
" VALUES"
" (%ld,%u,%ld,"
"'%s','%s','%s')",
Ins->CtyCod,
(unsigned) Status,
Gbl.Usrs.Me.UsrDat.UsrCod,
Ins->ShrtName,
Ins->FullName,
Ins->WWW);
}
/*****************************************************************************/
/****************** Update country in table of institutions ******************/
/*****************************************************************************/
void Ins_DB_UpdateInsCty (long InsCod,long CtyCod)
{
DB_QueryUPDATE ("can not update the country of an institution",
"UPDATE ins_instits"
" SET CtyCod=%ld"
" WHERE InsCod=%ld",
CtyCod,
InsCod);
}
/*****************************************************************************/
/****************** Update status in table of institutions *******************/
/*****************************************************************************/
void Ins_DB_UpdateInsStatus (long InsCod,Hie_Status_t Status)
{
DB_QueryUPDATE ("can not update the status of an institution",
"UPDATE ins_instits"
" SET Status=%u"
" WHERE InsCod=%ld",
(unsigned) Status,
InsCod);
}
/*****************************************************************************/
/*************************** Update institution name *************************/
/*****************************************************************************/
void Ins_DB_UpdateInsName (long InsCod,const char *FldName,const char *NewInsName)
{
/***** Update institution changing old name by new name */
DB_QueryUPDATE ("can not update the name of an institution",
"UPDATE ins_instits"
" SET %s='%s'"
" WHERE InsCod=%ld",
FldName,NewInsName,
InsCod);
}
/*****************************************************************************/
/**************** Update database changing old WWW by new WWW ****************/
/*****************************************************************************/
void Ins_DB_UpdateInsWWW (long InsCod,const char NewWWW[Cns_MAX_BYTES_WWW + 1])
{
/***** Update database changing old WWW by new WWW *****/
DB_QueryUPDATE ("can not update the web of an institution",
"UPDATE ins_instits"
" SET WWW='%s'"
" WHERE InsCod=%ld",
NewWWW,
InsCod);
}
/*****************************************************************************/
/************************* Get data of an institution ************************/
/*****************************************************************************/
unsigned Ins_DB_GetInsDataByCod (MYSQL_RES **mysql_res,long InsCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get data of an institution",
"SELECT InsCod," // row[0]
"CtyCod," // row[1]
"Status," // row[2]
"RequesterUsrCod," // row[3]
"ShortName," // row[4]
"FullName," // row[5]
"WWW," // row[6]
"0 AS NumUsrs" // row[7] (not used)
" FROM ins_instits"
" WHERE InsCod=%ld",
InsCod);
}
/*****************************************************************************/
/*********** Get the short name of an institution from its code **************/
/*****************************************************************************/
void Ins_DB_GetInsShrtName (long InsCod,char ShrtName[Cns_HIERARCHY_MAX_BYTES_SHRT_NAME + 1])
{
/***** Trivial check: institution code should be > 0 *****/
if (InsCod <= 0)
{
ShrtName[0] = '\0'; // Empty name
return;
}
/***** Get short name of institution from database *****/
DB_QuerySELECTString (ShrtName,Cns_HIERARCHY_MAX_BYTES_SHRT_NAME,
"can not get the short name of an institution",
"SELECT ShortName"
" FROM ins_instits"
" WHERE InsCod=%ld",
InsCod);
}
/*****************************************************************************/
/******** Get short name and country of an institution from its code *********/
/*****************************************************************************/
unsigned Ins_DB_GetInsShrtNameAndCty (MYSQL_RES **mysql_res,long InsCod)
{
extern const char *Lan_STR_LANG_ID[1 + Lan_NUM_LANGUAGES];
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get short name and country"
" of an institution",
"SELECT ins_instits.ShortName," // row[0]
"cty_countrs.Name_%s" // row[1]
" FROM ins_instits,"
"cty_countrs"
" WHERE ins_instits.InsCod=%ld"
" AND ins_instits.CtyCod=cty_countrs.CtyCod",
Lan_STR_LANG_ID[Gbl.Prefs.Language],
InsCod);
}
/*****************************************************************************/
/****** Check if the name of institution exists in the current country *******/
/*****************************************************************************/
bool Ins_DB_CheckIfInsNameExistsInCty (const char *FldName,
const char *Name,
long InsCod,
long CtyCod)
{
return
DB_QueryEXISTS ("can not check if the name of an institution already existed",
"SELECT EXISTS"
"(SELECT *"
" FROM ins_instits"
" WHERE CtyCod=%ld"
" AND %s='%s'"
" AND InsCod<>%ld)",
CtyCod,
FldName,Name,
InsCod);
}
/*****************************************************************************/
/***************** Get all institutions with pending centers *****************/
/*****************************************************************************/
unsigned Ins_DB_GetAllInsWithPendingCtr (MYSQL_RES **mysql_res)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions with pending centers",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*)" // row[1]
" FROM ctr_centers,"
"ins_instits"
" WHERE (ctr_centers.Status & %u)<>0"
" AND ctr_centers.InsCod=ins_instits.InsCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY ins_instits.ShortName",
(unsigned) Hie_STATUS_BIT_PENDING);
}
/*****************************************************************************/
/************* Get institutions with pending centers admin by me *************/
/*****************************************************************************/
unsigned Ins_DB_GetInsWithPendingCtrsAdminByMe (MYSQL_RES **mysql_res)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions with pending centers",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*)" // row[1]
" FROM ctr_centers,"
"ins_admin,"
"ins_instits"
" WHERE (ctr_centers.Status & %u)<>0"
" AND ctr_centers.InsCod=ins_admin.InsCod"
" AND ins_admin.UsrCod=%ld"
" AND ctr_centers.InsCod=ins_instits.InsCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY ins_instits.ShortName",
(unsigned) Hie_STATUS_BIT_PENDING,
Gbl.Usrs.Me.UsrDat.UsrCod);
}
/*****************************************************************************/
/************* Get institutions in country ordered by short name *************/
/*****************************************************************************/
unsigned Ins_DB_GetInssInCtyOrderedByShrtName (MYSQL_RES **mysql_res,long CtyCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT DISTINCT "
"InsCod," // row[0]
"ShortName" // row[1]
" FROM ins_instits"
" WHERE CtyCod=%ld"
" ORDER BY ShortName",
CtyCod);
}
/*****************************************************************************/
/******* Get basic list of institutions ordered by name of institution *******/
/*****************************************************************************/
unsigned Ins_DB_GetInssInCtyOrderedByFullName (MYSQL_RES **mysql_res,long CtyCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT InsCod," // row[0]
"CtyCod," // row[1]
"Status," // row[2]
"RequesterUsrCod," // row[3]
"ShortName," // row[4]
"FullName," // row[5]
"WWW," // row[6]
"0 AS NumUsrs" // row[7] (not used)
" FROM ins_instits"
" WHERE CtyCod=%ld"
" ORDER BY FullName",
CtyCod);
}
/*****************************************************************************/
/************* Get full list of institutions **************/
/************* with number of users who claim to belong to them **************/
/*****************************************************************************/
unsigned Ins_DB_GetFullListOfInssInCty (MYSQL_RES **mysql_res,long CtyCod)
{
static const char *OrderBySubQuery[Ins_NUM_ORDERS] =
{
[Ins_ORDER_BY_INSTITUTION] = "FullName",
[Ins_ORDER_BY_NUM_USRS ] = "NumUsrs DESC,"
"FullName",
};
/***** Get institutions from database *****/
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"(SELECT ins_instits.InsCod," // row[0]
"ins_instits.CtyCod," // row[1]
"ins_instits.Status," // row[2]
"ins_instits.RequesterUsrCod," // row[3]
"ins_instits.ShortName," // row[4]
"ins_instits.FullName," // row[5]
"ins_instits.WWW," // row[6]
"COUNT(*) AS NumUsrs" // row[7]
" FROM ins_instits,"
"usr_data"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=usr_data.InsCod"
" GROUP BY ins_instits.InsCod)"
" UNION "
"(SELECT InsCod," // row[0]
"CtyCod," // row[1]
"Status," // row[2]
"RequesterUsrCod," // row[3]
"ShortName," // row[4]
"FullName," // row[5]
"WWW," // row[6]
"0 AS NumUsrs" // row[7]
" FROM ins_instits"
" WHERE CtyCod=%ld"
" AND InsCod NOT IN"
" (SELECT DISTINCT "
"InsCod"
" FROM usr_data))"
" ORDER BY %s",
CtyCod,
CtyCod,
OrderBySubQuery[Gbl.Hierarchy.Inss.SelectedOrder]);
}
/*****************************************************************************/
/*************** Get institutions ordered by number of centers ***************/
/*****************************************************************************/
unsigned Ins_DB_GetInssOrderedByNumCtrs (MYSQL_RES **mysql_res)
{
switch (Gbl.Scope.Current)
{
case HieLvl_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers"
" GROUP BY InsCod"
" ORDER BY N DESC");
case HieLvl_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ins_instits,"
"ctr_centers"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Cty.CtyCod);
case HieLvl_INS:
case HieLvl_CTR:
case HieLvl_DEG:
case HieLvl_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers"
" WHERE InsCod=%ld"
" GROUP BY InsCod",
Gbl.Hierarchy.Ins.InsCod);
default:
Err_WrongScopeExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/************** Get institutions ordered by number of degrees ****************/
/*****************************************************************************/
unsigned Ins_DB_GetInssOrderedByNumDegs (MYSQL_RES **mysql_res)
{
switch (Gbl.Scope.Current)
{
case HieLvl_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers,"
"deg_degrees"
" WHERE ctr_centers.CtrCod=deg_degrees.CtrCod"
" GROUP BY InsCod"
" ORDER BY N DESC");
case HieLvl_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Cty.CtyCod);
case HieLvl_INS:
case HieLvl_CTR:
case HieLvl_DEG:
case HieLvl_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers,"
"deg_degrees"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Ins.InsCod);
default:
Err_WrongScopeExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/*************** Get institutions ordered by number of courses ***************/
/*****************************************************************************/
unsigned Ins_DB_GetInssOrderedByNumCrss (MYSQL_RES **mysql_res)
{
switch (Gbl.Scope.Current)
{
case HieLvl_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses"
" WHERE ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" GROUP BY InsCod"
" ORDER BY N DESC");
case HieLvl_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses"
" 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"
" GROUP BY ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Cty.CtyCod);
case HieLvl_INS:
case HieLvl_CTR:
case HieLvl_DEG:
case HieLvl_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" GROUP BY ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Ins.InsCod);
default:
Err_WrongScopeExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/*************** Get institutions ordered by users in courses ****************/
/*****************************************************************************/
unsigned Ins_DB_GetInssOrderedByNumUsrsInCrss (MYSQL_RES **mysql_res)
{
/***** Get institutions ordered by number of users in courses *****/
switch (Gbl.Scope.Current)
{
case HieLvl_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(DISTINCT crs_users.UsrCod) AS N" // row[1]
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=crs_users.CrsCod"
" GROUP BY InsCod"
" ORDER BY N DESC");
case HieLvl_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(DISTINCT crs_users.UsrCod) AS N" // row[1]
" 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 ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Cty.CtyCod);
case HieLvl_INS:
case HieLvl_CTR:
case HieLvl_DEG:
case HieLvl_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ctr_centers.InsCod," // row[0]
"COUNT(DISTINCT crs_users.UsrCod) AS N" // row[1]
" 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 ctr_centers.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Ins.InsCod);
default:
Err_WrongScopeExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/** Get institutions ordered by number of users who claim to belong to them **/
/*****************************************************************************/
unsigned Ins_DB_GetInssOrderedByNumUsrsWhoClaimToBelongToThem (MYSQL_RES **mysql_res)
{
switch (Gbl.Scope.Current)
{
case HieLvl_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM usr_data"
" WHERE InsCod>0"
" GROUP BY InsCod"
" ORDER BY N DESC");
case HieLvl_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT usr_data.InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM ins_instits,usr_data"
" WHERE ins_instits.CtyCod=%ld"
" AND ins_instits.InsCod=usr_data.InsCod"
" GROUP BY usr_data.InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Cty.CtyCod);
case HieLvl_INS:
case HieLvl_CTR:
case HieLvl_DEG:
case HieLvl_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT InsCod," // row[0]
"COUNT(*) AS N" // row[1]
" FROM usr_data"
" WHERE InsCod=%ld"
" GROUP BY InsCod"
" ORDER BY N DESC",
Gbl.Hierarchy.Ins.InsCod);
default:
Err_WrongScopeExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/********************** Search institutions in database **********************/
/*****************************************************************************/
// Returns number of institutions found
unsigned Ins_DB_SearchInss (MYSQL_RES **mysql_res,
const char SearchQuery[Sch_MAX_BYTES_SEARCH_QUERY + 1],
const char *RangeQuery)
{
extern const char *Lan_STR_LANG_ID[1 + Lan_NUM_LANGUAGES];
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get institutions",
"SELECT ins_instits.InsCod"
" FROM ins_instits,"
"cty_countrs"
" WHERE %s"
" AND ins_instits.CtyCod=cty_countrs.CtyCod"
"%s"
" ORDER BY ins_instits.FullName,"
"cty_countrs.Name_%s",
SearchQuery,
RangeQuery,
Lan_STR_LANG_ID[Gbl.Prefs.Language]);
}
/*****************************************************************************/
/**************** Get number of institutions in a country ********************/
/*****************************************************************************/
unsigned Ins_DB_GetNumInssInCty (long CtyCod)
{
return (unsigned)
DB_QueryCOUNT ("can not get the number of institutions in a country",
"SELECT COUNT(*)"
" FROM ins_instits"
" WHERE CtyCod=%ld",
CtyCod);
}
/*****************************************************************************/
/****************** Get number of institutions with centres ******************/
/*****************************************************************************/
unsigned Ins_DB_GetNumInssWithCtrs (HieLvl_Level_t Scope,long Cod)
{
char SubQuery[128];
Hie_DB_BuildSubquery (SubQuery,Scope,Cod);
return (unsigned)
DB_QueryCOUNT ("can not get number of institutions with centers",
"SELECT COUNT(DISTINCT ins_instits.InsCod)"
" FROM ins_instits,"
"ctr_centers"
" WHERE %s"
"ins_instits.InsCod=ctr_centers.InsCod",
SubQuery);
}
/*****************************************************************************/
/****************** Get number of institutions with degrees ******************/
/*****************************************************************************/
unsigned Ins_DB_GetNumInssWithDegs (HieLvl_Level_t Scope,long Cod)
{
char SubQuery[128];
Hie_DB_BuildSubquery (SubQuery,Scope,Cod);
return (unsigned)
DB_QueryCOUNT ("can not get number of institutions with degrees",
"SELECT COUNT(DISTINCT ins_instits.InsCod)"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees"
" WHERE %s"
"ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod",
SubQuery);
}
/*****************************************************************************/
/****************** Get number of institutions with courses ******************/
/*****************************************************************************/
unsigned Ins_DB_GetNumInssWithCrss (HieLvl_Level_t Scope,long Cod)
{
char SubQuery[128];
Hie_DB_BuildSubquery (SubQuery,Scope,Cod);
return (unsigned)
DB_QueryCOUNT ("can not get number of institutions with courses",
"SELECT COUNT(DISTINCT ins_instits.InsCod)"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses"
" WHERE %s"
"ins_instits.InsCod=ctr_centers.InsCod"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod",
SubQuery);
}
/*****************************************************************************/
/************* Get current number of institutions with users *****************/
/*****************************************************************************/
unsigned Ins_DB_GetNumInnsWithUsrs (Rol_Role_t Role,
HieLvl_Level_t Scope,long Cod)
{
char SubQuery[128];
Hie_DB_BuildSubquery (SubQuery,Scope,Cod);
return (unsigned)
DB_QueryCOUNT ("can not get number of institutions with users",
"SELECT COUNT(DISTINCT ins_instits.InsCod)"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"crs_users"
" WHERE %s"
"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",
SubQuery,(unsigned) Role);
}
/*****************************************************************************/
/************** Get the institutions of a user from database *****************/
/*****************************************************************************/
// Returns the number of rows of the result
unsigned Ins_DB_GetInssFromUsr (MYSQL_RES **mysql_res,long UsrCod,long CtyCod)
{
if (CtyCod > 0)
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get the institutions a user belongs to",
"SELECT ins_instits.InsCod," // row[0]
"MAX(crs_users.Role)" // row[1]
" FROM crs_users,"
"crs_courses,"
"deg_degrees,"
"ctr_centers,"
"ins_instits"
" WHERE crs_users.UsrCod=%ld"
" AND crs_users.CrsCod=crs_courses.CrsCod"
" AND crs_courses.DegCod=deg_degrees.DegCod"
" AND deg_degrees.CtrCod=ctr_centers.CtrCod"
" AND ctr_centers.InsCod=ins_instits.InsCod"
" AND ins_instits.CtyCod=%ld"
" GROUP BY ins_instits.InsCod"
" ORDER BY ins_instits.ShortName",
UsrCod,
CtyCod);
else
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get the institutions a user belongs to",
"SELECT ins_instits.InsCod," // row[0]
"MAX(crs_users.Role)" // row[1]
" FROM crs_users,"
"crs_courses,"
"deg_degrees,"
"ctr_centers,"
"ins_instits"
" WHERE crs_users.UsrCod=%ld"
" AND crs_users.CrsCod=crs_courses.CrsCod"
" AND crs_courses.DegCod=deg_degrees.DegCod"
" AND deg_degrees.CtrCod=ctr_centers.CtrCod"
" AND ctr_centers.InsCod=ins_instits.InsCod"
" GROUP BY ins_instits.InsCod"
" ORDER BY ins_instits.ShortName",
UsrCod);
}
/*****************************************************************************/
/**************** Check if a user belongs to an institution ******************/
/*****************************************************************************/
bool Ins_DB_CheckIfUsrBelongsToIns (long UsrCod,long InsCod)
{
return (DB_QueryCOUNT ("can not check if a user belongs to an institution",
"SELECT COUNT(DISTINCT ctr_centers.InsCod)"
" FROM crs_users,"
"crs_courses,"
"deg_degrees,"
"ctr_centers"
" WHERE crs_users.UsrCod=%ld"
" AND crs_users.Accepted='Y'" // Only if user accepted
" AND crs_users.CrsCod=crs_courses.CrsCod"
" AND crs_courses.DegCod=deg_degrees.DegCod"
" AND deg_degrees.CtrCod=ctr_centers.CtrCod"
" AND ctr_centers.InsCod=%ld",
UsrCod,
InsCod) != 0);
}
/*****************************************************************************/
/******** Get number of users who claim to belong to an institution **********/
/*****************************************************************************/
unsigned Ins_DB_GetNumUsrsWhoClaimToBelongToIns (long InsCod)
{
return (unsigned)
DB_QueryCOUNT ("can not get number of users",
"SELECT COUNT(UsrCod)"
" FROM usr_data"
" WHERE InsCod=%ld",
InsCod);
}
/*****************************************************************************/
/***************************** Remove institution ****************************/
/*****************************************************************************/
void Ins_DB_RemoveInstitution (long InsCod)
{
DB_QueryDELETE ("can not remove an institution",
"DELETE FROM ins_instits"
" WHERE InsCod=%ld",
InsCod);
}
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