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swad-core/swad_assignment_database.c

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// swad_assignment_database.c: assignments 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) 1999-2024 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 ***********************************/
/*****************************************************************************/
#include "swad_assignment.h"
#include "swad_assignment_database.h"
#include "swad_database.h"
#include "swad_date.h"
#include "swad_error.h"
#include "swad_global.h"
#include "swad_hierarchy_type.h"
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/****************************** Public variables *****************************/
/*****************************************************************************/
unsigned (*Asg_DB_GetListAssignments[Grp_NUM_WHICH_GROUPS]) (MYSQL_RES **mysql_res,
Dat_StartEndTime_t SelectedOrder) =
{
[Grp_MY_GROUPS ] = Asg_DB_GetListAssignmentsMyGrps,
[Grp_ALL_GROUPS] = Asg_DB_GetListAssignmentsAllGrps,
};
/*****************************************************************************/
/***************************** Private constants *****************************/
/*****************************************************************************/
static const char *Asg_DB_HiddenSubQuery[Rol_NUM_ROLES] =
{
[Rol_UNK ] = " AND Hidden='N'",
[Rol_GST ] = " AND Hidden='N'",
[Rol_USR ] = " AND Hidden='N'",
[Rol_STD ] = " AND Hidden='N'",
[Rol_NET ] = " AND Hidden='N'",
[Rol_TCH ] = "",
[Rol_DEG_ADM] = " AND Hidden='N'",
[Rol_CTR_ADM] = " AND Hidden='N'",
[Rol_INS_ADM] = " AND Hidden='N'",
[Rol_SYS_ADM] = "",
};
static const char *Asg_DB_OrderSubQuery[Dat_NUM_START_END_TIME] =
{
[Dat_STR_TIME] = "StartTime DESC,"
"EndTime DESC,"
"Title DESC",
[Dat_END_TIME] = "EndTime DESC,"
"StartTime DESC,"
"Title DESC",
};
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
/*****************************************************************************/
/******************* Get list of assignments for my groups *******************/
/*****************************************************************************/
unsigned Asg_DB_GetListAssignmentsMyGrps (MYSQL_RES **mysql_res,
Dat_StartEndTime_t SelectedOrder)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get assignments",
"SELECT AsgCod"
" FROM asg_assignments"
" WHERE CrsCod=%ld%s"
" AND ("
// Assignment is for the whole course
"AsgCod NOT IN"
" (SELECT AsgCod"
" FROM asg_groups)" // Not associated to any group
" OR"
// Assignment is for some of my groups
" AsgCod IN"
" (SELECT asg_groups.AsgCod"
" FROM asg_groups,"
"grp_users"
" WHERE grp_users.UsrCod=%ld"
" AND asg_groups.GrpCod=grp_users.GrpCod)"
")"
" ORDER BY %s",
Gbl.Hierarchy.Node[Hie_CRS].HieCod,
Asg_DB_HiddenSubQuery[Gbl.Usrs.Me.Role.Logged],
Gbl.Usrs.Me.UsrDat.UsrCod,
Asg_DB_OrderSubQuery[SelectedOrder]);
}
/*****************************************************************************/
/****************** Get list of assignments for all groups *******************/
/*****************************************************************************/
unsigned Asg_DB_GetListAssignmentsAllGrps (MYSQL_RES **mysql_res,
Dat_StartEndTime_t SelectedOrder)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get assignments",
"SELECT AsgCod"
" FROM asg_assignments"
" WHERE CrsCod=%ld%s"
" ORDER BY %s",
Gbl.Hierarchy.Node[Hie_CRS].HieCod,
Asg_DB_HiddenSubQuery[Gbl.Usrs.Me.Role.Logged],
Asg_DB_OrderSubQuery[SelectedOrder]);
}
/*****************************************************************************/
/******************* Get assignment data using its code **********************/
/*****************************************************************************/
unsigned Asg_DB_GetAssignmentDataByCod (MYSQL_RES **mysql_res,long AsgCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get assignment data",
"SELECT AsgCod," // row[0]
"Hidden," // row[1]
"UsrCod," // row[2]
"UNIX_TIMESTAMP(StartTime)," // row[3]
"UNIX_TIMESTAMP(EndTime)," // row[4]
"NOW() BETWEEN StartTime AND EndTime," // row[5]
"Title," // row[6]
"Folder" // row[7]
" FROM asg_assignments"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld", // Extra check
AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/**************** Get assignment data using its folder name ******************/
/*****************************************************************************/
unsigned Asg_DB_GetAssignmentDataByFolder (MYSQL_RES **mysql_res,
const char Folder[Brw_MAX_BYTES_FOLDER + 1])
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get assignment data",
"SELECT AsgCod," // row[0]
"Hidden," // row[1]
"UsrCod," // row[2]
"UNIX_TIMESTAMP(StartTime)," // row[3]
"UNIX_TIMESTAMP(EndTime)," // row[4]
"NOW() BETWEEN StartTime AND EndTime," // row[5]
"Title," // row[6]
"Folder" // row[7]
" FROM asg_assignments"
" WHERE CrsCod=%ld" // Extra check
" AND Folder='%s'",
Gbl.Hierarchy.Node[Hie_CRS].HieCod,
Folder);
}
/*****************************************************************************/
/************* Get title and text of assignment using its code ***************/
/*****************************************************************************/
unsigned Asg_DB_GetAssignmentTitleAndTxtByCod (MYSQL_RES **mysql_res,long AsgCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get assignment title and text",
"SELECT Title," // row[0]
"Txt" // row[1]
" FROM asg_assignments"
" WHERE AsgCod=%ld",
AsgCod);
}
/*****************************************************************************/
/******************** Get assignment title from database *********************/
/*****************************************************************************/
void Asg_DB_GetAssignmentTitleByCod (long AsgCod,char *Title,size_t TitleSize)
{
DB_QuerySELECTString (Title,TitleSize,"can not get assignment title",
"SELECT Title"
" FROM asg_assignments"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld", // Extra check
AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/******************** Get assignment text from database **********************/
/*****************************************************************************/
void Asg_DB_GetAssignmentTxtByCod (long AsgCod,char Txt[Cns_MAX_BYTES_TEXT + 1])
{
DB_QuerySELECTString (Txt,Cns_MAX_BYTES_TEXT,"can not get assignment text",
"SELECT Txt"
" FROM asg_assignments"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld", // Extra check
AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/******** Check if the title or the folder of an assignment exists ***********/
/*****************************************************************************/
bool Asg_DB_CheckIfSimilarAssignmentExists (const char *Field,const char *Value,
long AsgCod)
{
return
DB_QueryEXISTS ("can not check if similar assignments exist",
"SELECT EXISTS"
"(SELECT *"
" FROM asg_assignments"
" WHERE CrsCod=%ld"
" AND %s='%s'"
" AND AsgCod<>%ld)",
Gbl.Hierarchy.Node[Hie_CRS].HieCod,
Field,Value,
AsgCod);
}
/*****************************************************************************/
/************************ Create a new assignment ****************************/
/*****************************************************************************/
long Asg_DB_CreateAssignment (const struct Asg_Assignment *Asg,const char *Txt)
{
return
DB_QueryINSERTandReturnCode ("can not create new assignment",
"INSERT INTO asg_assignments"
" (CrsCod,UsrCod,"
"StartTime,EndTime,"
"Title,Folder,Txt)"
" VALUES"
" (%ld,%ld,"
"FROM_UNIXTIME(%ld),FROM_UNIXTIME(%ld),"
"'%s','%s','%s')",
Gbl.Hierarchy.Node[Hie_CRS].HieCod,
Gbl.Usrs.Me.UsrDat.UsrCod,
Asg->TimeUTC[Dat_STR_TIME],
Asg->TimeUTC[Dat_END_TIME],
Asg->Title,
Asg->Folder,
Txt);
}
/*****************************************************************************/
/********************* Update an existing assignment *************************/
/*****************************************************************************/
void Asg_DB_UpdateAssignment (const struct Asg_Assignment *Asg,const char *Txt)
{
/***** Update the data of the assignment *****/
DB_QueryUPDATE ("can not update assignment",
"UPDATE asg_assignments"
" SET StartTime=FROM_UNIXTIME(%ld),"
"EndTime=FROM_UNIXTIME(%ld),"
"Title='%s',"
"Folder='%s',"
"Txt='%s'"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld", // Extra check
Asg->TimeUTC[Dat_STR_TIME],
Asg->TimeUTC[Dat_END_TIME],
Asg->Title,
Asg->Folder,
Txt,
Asg->AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/************************* Hide/unhide an assignment *************************/
/*****************************************************************************/
void Asg_DB_HideOrUnhideAssignment (long AsgCod,
HidVis_HiddenOrVisible_t HiddenOrVisible)
{
extern const char HidVis_YN[HidVis_NUM_HIDDEN_VISIBLE];
DB_QueryUPDATE ("can not hide/unhide assignment",
"UPDATE asg_assignments"
" SET Hidden='%c'"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld",
HidVis_YN[HiddenOrVisible],
AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/**************************** Remove an assignment ***************************/
/*****************************************************************************/
void Asg_DB_RemoveAssignment (long AsgCod)
{
DB_QueryDELETE ("can not remove assignment",
"DELETE FROM asg_assignments"
" WHERE AsgCod=%ld"
" AND CrsCod=%ld", // Extra check
AsgCod,
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
}
/*****************************************************************************/
/********************* Check if I can do an assignment ***********************/
/*****************************************************************************/
Usr_Can_t Asg_DB_CheckIfICanDoAsgBasedOnGroups (long AsgCod)
{
// Students and teachers can do assignments depending on groups
return
DB_QueryEXISTS ("can not check if I can do an assignment",
"SELECT EXISTS"
"(SELECT *"
" FROM asg_assignments"
" WHERE AsgCod=%ld"
" AND ("
// Assignment is for the whole course
"AsgCod NOT IN"
" (SELECT AsgCod"
" FROM asg_groups)"
" OR "
// Assignment is for some of my groups
"AsgCod IN"
" (SELECT asg_groups.AsgCod"
" FROM grp_users,"
"asg_groups"
" WHERE grp_users.UsrCod=%ld"
" AND asg_groups.GrpCod=grp_users.GrpCod)"
"))",
AsgCod,
Gbl.Usrs.Me.UsrDat.UsrCod) ? Usr_CAN :
Usr_CAN_NOT;
}
/*****************************************************************************/
/******************* Get groups associated to an assignment ******************/
/*****************************************************************************/
unsigned Asg_DB_GetGrps (MYSQL_RES **mysql_res,long AsgCod)
{
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get groups of an assignment",
"SELECT grp_types.GrpTypName," // row[0]
"grp_groups.GrpName" // row[1]
" FROM asg_groups,"
"grp_groups,"
"grp_types"
" WHERE asg_groups.AsgCod=%ld"
" AND asg_groups.GrpCod=grp_groups.GrpCod"
" AND grp_groups.GrpTypCod=grp_types.GrpTypCod"
" ORDER BY grp_types.GrpTypName,"
"grp_groups.GrpName",
AsgCod);
}
/*****************************************************************************/
/********************* Create a group of an assignment ************************/
/*****************************************************************************/
void Asg_DB_CreateGroup (long AsgCod,long GrpCod)
{
DB_QueryINSERT ("can not associate a group to an assignment",
"INSERT INTO asg_groups"
" (AsgCod,GrpCod)"
" VALUES"
" (%ld,%ld)",
AsgCod,
GrpCod);
}
/*****************************************************************************/
/******************* Remove one group from all assignments *******************/
/*****************************************************************************/
void Asg_DB_RemoveGroup (long GrpCod)
{
DB_QueryDELETE ("can not remove group from the associations"
" between assignments and groups",
"DELETE FROM asg_groups"
" WHERE GrpCod=%ld",
GrpCod);
}
/*****************************************************************************/
/************* Remove groups of one type from all assignments ****************/
/*****************************************************************************/
void Asg_DB_RemoveGroupsOfType (long GrpTypCod)
{
/***** Remove group from all assignments *****/
DB_QueryDELETE ("can not remove groups of a type from the associations"
" between assignments and groups",
"DELETE FROM asg_groups"
" USING grp_groups,"
"asg_groups"
" WHERE grp_groups.GrpTypCod=%ld"
" AND grp_groups.GrpCod=asg_groups.GrpCod",
GrpTypCod);
}
/*****************************************************************************/
/********************* Remove groups of an assignment ************************/
/*****************************************************************************/
void Asg_DB_RemoveGrpsAssociatedToAnAssignment (long AsgCod)
{
/***** Remove groups of the assignment *****/
DB_QueryDELETE ("can not remove the groups associated to an assignment",
"DELETE FROM asg_groups"
" WHERE AsgCod=%ld",
AsgCod);
}
/*****************************************************************************/
/*********** Remove groups associated to assignments in a course *************/
/*****************************************************************************/
void Asg_DB_RemoveGrpsAssociatedToAsgsInCrs (long CrsCod)
{
DB_QueryDELETE ("can not remove groups associated to assignments in a course",
"DELETE FROM asg_groups"
" USING asg_assignments,"
"asg_groups"
" WHERE asg_assignments.CrsCod=%ld"
" AND asg_assignments.AsgCod=asg_groups.AsgCod",
CrsCod);
}
/*****************************************************************************/
/******************** Remove all assignments in a course *********************/
/*****************************************************************************/
void Asg_DB_RemoveCrsAssignments (long CrsCod)
{
DB_QueryDELETE ("can not remove all assignments in a course",
"DELETE FROM asg_assignments"
" WHERE CrsCod=%ld",
CrsCod);
}
/*****************************************************************************/
/******** Update number of users notified in table of assignments ************/
/*****************************************************************************/
void Asg_DB_UpdateNumUsrsNotifiedByEMailAboutAssignment (long AsgCod,
unsigned NumUsrsToBeNotifiedByEMail)
{
DB_QueryUPDATE ("can not update the number of notifs. of an assignment",
"UPDATE asg_assignments"
" SET NumNotif=NumNotif+%u"
" WHERE AsgCod=%ld",
NumUsrsToBeNotifiedByEMail,
AsgCod);
}
/*****************************************************************************/
/********** Get all user codes belonging to an assignment, except me *********/
/*****************************************************************************/
unsigned Asg_DB_GetUsrsFromAssignmentExceptMe (MYSQL_RES **mysql_res,long AsgCod)
{
// 1. If the assignment is available for the whole course ==> get all users enroled in the course except me
// 2. If the assignment is available only for some groups ==> get all users who belong to any of the groups except me
// Cases 1 and 2 are mutually exclusive, so the union returns the case 1 or 2
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get users to be notified",
"(SELECT crs_users.UsrCod"
" FROM asg_assignments,"
"crs_users"
" WHERE asg_assignments.AsgCod=%ld"
" AND asg_assignments.AsgCod NOT IN"
" (SELECT AsgCod"
" FROM asg_groups"
" WHERE AsgCod=%ld)"
" AND asg_assignments.CrsCod=crs_users.CrsCod"
" AND crs_users.UsrCod<>%ld)"
" UNION "
"(SELECT DISTINCT "
"grp_users.UsrCod"
" FROM asg_groups,"
"grp_users"
" WHERE asg_groups.AsgCod=%ld"
" AND asg_groups.GrpCod=grp_users.GrpCod"
" AND grp_users.UsrCod<>%ld)",
AsgCod,
AsgCod,
Gbl.Usrs.Me.UsrDat.UsrCod,
AsgCod,
Gbl.Usrs.Me.UsrDat.UsrCod);
}
/*****************************************************************************/
/****************** Get number of courses with assignments *******************/
/*****************************************************************************/
// Returns the number of courses with assignments
// in this location (all the platform, the current degree or the current course)
unsigned Asg_DB_GetNumCoursesWithAssignments (Hie_Level_t Level)
{
/***** Get number of courses with assignments from database *****/
switch (Level)
{
case Hie_SYS:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT CrsCod)"
" FROM asg_assignments"
" WHERE CrsCod>0");
case Hie_CTY:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT asg_assignments.CrsCod)"
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"courses,"
"asg_assignments"
" 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=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_CTY].HieCod);
case Hie_INS:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT asg_assignments.CrsCod)"
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"asg_assignments"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_INS].HieCod);
case Hie_CTR:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT asg_assignments.CrsCod)"
" FROM deg_degrees,"
"crs_courses,"
"asg_assignments"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_CTR].HieCod);
case Hie_DEG:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT asg_assignments.CrsCod)"
" FROM crs_courses,"
"asg_assignments"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_DEG].HieCod);
case Hie_CRS:
return (unsigned)
DB_QueryCOUNT ("can not get number of courses with assignments",
"SELECT COUNT(DISTINCT CrsCod)"
" FROM asg_assignments"
" WHERE CrsCod=%ld",
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
default:
Err_WrongHierarchyLevelExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/************************ Get number of assignments **************************/
/*****************************************************************************/
// Returns the number of assignments
// in this location (all the platform, the current degree or the current course)
unsigned Asg_DB_GetNumAssignments (MYSQL_RES **mysql_res,Hie_Level_t Level)
{
/***** Get number of assignments from database *****/
switch (Level)
{
case Hie_SYS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(NumNotif)" // row[1]
" FROM asg_assignments"
" WHERE CrsCod>0");
case Hie_CTY:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(asg_assignments.NumNotif)" // row[1]
" FROM ins_instits,"
"ctr_centers,"
"deg_degrees,"
"crs_courses,"
"asg_assignments"
" 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=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_CTY].HieCod);
case Hie_INS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(asg_assignments.NumNotif)" // row[1]
" FROM ctr_centers,"
"deg_degrees,"
"crs_courses,"
"asg_assignments"
" WHERE ctr_centers.InsCod=%ld"
" AND ctr_centers.CtrCod=deg_degrees.CtrCod"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_INS].HieCod);
case Hie_CTR:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(asg_assignments.NumNotif)" // row[1]
" FROM deg_degrees,"
"crs_courses,"
"asg_assignments"
" WHERE deg_degrees.CtrCod=%ld"
" AND deg_degrees.DegCod=crs_courses.DegCod"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_CTR].HieCod);
case Hie_DEG:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(asg_assignments.NumNotif)" // row[1]
" FROM crs_courses,"
"asg_assignments"
" WHERE crs_courses.DegCod=%ld"
" AND crs_courses.CrsCod=asg_assignments.CrsCod",
Gbl.Hierarchy.Node[Hie_DEG].HieCod);
case Hie_CRS:
return (unsigned)
DB_QuerySELECT (mysql_res,"can not get number of assignments",
"SELECT COUNT(*)," // row[0]
"SUM(NumNotif)" // row[1]
" FROM asg_assignments"
" WHERE CrsCod=%ld",
Gbl.Hierarchy.Node[Hie_CRS].HieCod);
default:
Err_WrongHierarchyLevelExit ();
return 0; // Not reached
}
}
/*****************************************************************************/
/****************** Get number of assignments in a course ********************/
/*****************************************************************************/
unsigned Asg_DB_GetNumAssignmentsInCrs (long CrsCod)
{
/***** Get number of assignments in a course from database *****/
return (unsigned)
DB_QueryCOUNT ("can not get number of assignments in course",
"SELECT COUNT(*)"
" FROM asg_assignments"
" WHERE CrsCod=%ld",
CrsCod);
}
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