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swad-core/swad_search.c

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// swad_search.c: search for courses and teachers
/*
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) 1999-2015 Antonio Cañas Vargas
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General 3 License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/*********************************** Headers *********************************/
/*****************************************************************************/
#include <stdio.h> // For fprintf...
#include <string.h> // For strcat...
#include "swad_database.h"
#include "swad_global.h"
#include "swad_layout.h"
#include "swad_parameter.h"
/*****************************************************************************/
/****************************** Public constants *****************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Internal constants ****************************/
/*****************************************************************************/
#define Sch_MAX_WORDS_IN_SEARCH 10
#define Sch_MAX_LENGTH_SEARCH_WORD 255
#define Sch_MIN_LENGTH_LONGEST_WORD 3
#define Sch_MAX_LENGTH_SEARCH_QUERY (10*Sch_MAX_LENGTH_STRING_TO_FIND)
/*****************************************************************************/
/****************************** Internal types *******************************/
/*****************************************************************************/
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/************************* Internal global variables *************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Internal prototypes ***************************/
/*****************************************************************************/
static void Sch_PutFormToSearchWithWhatToSearchAndScope (Act_Action_t Action,Sco_Scope_t DefaultScope);
static bool Sch_CheckIfIHavePermissionToSearch (Sch_WhatToSearch_t WhatToSearch);
static void Sch_GetParamSearch (char *SearchStr,size_t MaxLength);
static void Sch_SearchInDB (void);
static unsigned Sch_SearchInstitutionsInDB (const char *RangeQuery);
static unsigned Sch_SearchCentresInDB (const char *RangeQuery);
static unsigned Sch_SearchDegreesInDB (const char *RangeQuery);
static unsigned Sch_SearchCoursesInDB (const char *RangeQuery);
static unsigned Sch_SearchUsrsInDB (Rol_Role_t Role);
static unsigned Sch_SearchOpenDocumentsInDB (const char *RangeQuery);
static unsigned Sch_SearchDocumentsInMyCoursesInDB (const char *RangeQuery);
static unsigned Sch_SearchMyDocumentsInDB (const char *RangeQuery);
static bool Sch_BuildSearchQuery (char *SearchQuery,const char *FieldName,
const char *CharSet,const char *Collate);
static void Sch_SaveLastSearchIntoSession (void);
/*****************************************************************************/
/*********************** Request search in system tab ************************/
/*****************************************************************************/
void Sch_ReqSysSearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActSysSch,Sco_SCOPE_SYS);
}
/*****************************************************************************/
/********************** Request search in country tab ************************/
/*****************************************************************************/
void Sch_ReqCtySearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCtySch,Sco_SCOPE_CTY);
}
/*****************************************************************************/
/******************** Request search in institution tab **********************/
/*****************************************************************************/
void Sch_ReqInsSearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActInsSch,Sco_SCOPE_INS);
}
/*****************************************************************************/
/*********************** Request search in centre tab ************************/
/*****************************************************************************/
void Sch_ReqCtrSearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCtrSch,Sco_SCOPE_CTR);
}
/*****************************************************************************/
/*********************** Request search in degree tab ************************/
/*****************************************************************************/
void Sch_ReqDegSearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActDegSch,Sco_SCOPE_DEG);
}
/*****************************************************************************/
/*********************** Request search in course tab ************************/
/*****************************************************************************/
void Sch_ReqCrsSearch (void)
{
/***** Select one of my courses *****/
if (Gbl.Usrs.Me.Logged)
{
fprintf (Gbl.F.Out,"<div class=\"CONTEXT_MENU\">");
Crs_PutFormToSelectMyCourses ();
fprintf (Gbl.F.Out,"</div>");
}
/***** Search courses, teachers, documents... *****/
Sch_GetParamWhatToSearch ();
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCrsSch,Sco_SCOPE_CRS);
}
/*****************************************************************************/
/****************** Put a form to search, including scope ********************/
/*****************************************************************************/
static void Sch_PutFormToSearchWithWhatToSearchAndScope (Act_Action_t Action,Sco_Scope_t DefaultScope)
{
extern const char *The_ClassFormul[The_NUM_THEMES];
extern const char *Txt_Scope;
extern const char *Txt_All;
extern const char *Txt_Institutions;
extern const char *Txt_Centres;
extern const char *Txt_Degrees;
extern const char *Txt_Courses;
extern const char *Txt_ROLES_PLURAL_Abc[Rol_NUM_ROLES][Usr_NUM_SEXS];
extern const char *Txt_My_documents;
extern const char *Txt_DOCUM_in_my_courses;
extern const char *Txt_Open_documents;
extern const char *Txt_Search;
const char *Titles[Sch_NUM_WHAT_TO_SEARCH] =
{
Txt_All, // Sch_SEARCH_ALL
Txt_Institutions, // Sch_SEARCH_INSTITUTIONS
Txt_Centres, // Sch_SEARCH_CENTRES
Txt_Degrees, // Sch_SEARCH_DEGREES
Txt_Courses, // Sch_SEARCH_COURSES
Txt_ROLES_PLURAL_Abc[Rol_TEACHER][Usr_SEX_UNKNOWN],// Sch_SEARCH_TEACHERS
Txt_ROLES_PLURAL_Abc[Rol_STUDENT][Usr_SEX_UNKNOWN],// Sch_SEARCH_STUDENTS
Txt_ROLES_PLURAL_Abc[Rol__GUEST_ ][Usr_SEX_UNKNOWN],// Sch_SEARCH_GUESTS
Txt_Open_documents, // Sch_SEARCH_OPEN_DOCUMENTS
Txt_DOCUM_in_my_courses, // Sch_SEARCH_DOCUM_IN_MY_COURSES
Txt_My_documents, // Sch_SEARCH_MY_DOCUMENTS
};
Sch_WhatToSearch_t WhatToSearch;
/***** Form start *****/
fprintf (Gbl.F.Out,"<div style=\"text-align:center;\">");
Act_FormStart (Action);
Lay_StartRoundFrameTable10 (NULL,2,Txt_Search);
fprintf (Gbl.F.Out,"<tr>"
"<td style=\"text-align:center;\">");
/***** Scope (whole platform, current centre, current degree or current course) *****/
fprintf (Gbl.F.Out,"<div class=\"%s\" style=\"text-align:center;\">"
"%s: ",
The_ClassFormul[Gbl.Prefs.Theme],Txt_Scope);
Gbl.Scope.Allowed = 1 << Sco_SCOPE_SYS |
1 << Sco_SCOPE_CTY |
1 << Sco_SCOPE_INS |
1 << Sco_SCOPE_CTR |
1 << Sco_SCOPE_DEG |
1 << Sco_SCOPE_CRS;
Gbl.Scope.Default = DefaultScope;
Sco_GetScope ();
Sco_PutSelectorScope (false);
fprintf (Gbl.F.Out,"</div>");
/***** What to search? *****/
fprintf (Gbl.F.Out,"<select name=\"WhatToSearch\" style=\"width:150px;\">");
for (WhatToSearch = (Sch_WhatToSearch_t) 0;
WhatToSearch < Sch_NUM_WHAT_TO_SEARCH;
WhatToSearch++)
if (Sch_CheckIfIHavePermissionToSearch (WhatToSearch))
{
fprintf (Gbl.F.Out,"<option value=\"%u\"",
(unsigned) WhatToSearch);
if (Gbl.Search.WhatToSearch == WhatToSearch)
fprintf (Gbl.F.Out," selected=\"selected\"");
fprintf (Gbl.F.Out,">%s</option>",
Titles[WhatToSearch]);
}
fprintf (Gbl.F.Out,"</select>");
/***** String to find *****/
Sch_PutFormToSearch (Gbl.Prefs.IconsURL);
/***** Send button *****/
fprintf (Gbl.F.Out,"<br />");
Lay_PutConfirmButton (Txt_Search);
/***** Form end *****/
fprintf (Gbl.F.Out,"</td>"
"</tr>");
Lay_EndRoundFrameTable10 ();
Act_FormEnd ();
fprintf (Gbl.F.Out,"</div>");
}
/*****************************************************************************/
/************* Check if I have permission to execute an action ***************/
/*****************************************************************************/
static bool Sch_CheckIfIHavePermissionToSearch (Sch_WhatToSearch_t WhatToSearch)
{
unsigned Permissions[Sch_NUM_WHAT_TO_SEARCH] =
{
0x1FF, // Sch_SEARCH_ALL
0x1FF, // Sch_SEARCH_INSTITUTIONS
0x1FF, // Sch_SEARCH_CENTRES
0x1FF, // Sch_SEARCH_DEGREES
0x1FF, // Sch_SEARCH_COURSES
0x1FF, // Sch_SEARCH_TEACHERS
0x100, // Sch_SEARCH_STUDENTS Only for superusers
0x100, // Sch_SEARCH_GUESTS Only for superusers
0x1FF, // Sch_SEARCH_OPEN_DOCUMENTS
0x1FE, // Sch_SEARCH_DOCUM_IN_MY_COURSES Only if I am logged
0x1FE, // Sch_SEARCH_MY_DOCUMENTS Only if I am logged
};
return (Permissions[WhatToSearch] & (1 << Gbl.Usrs.Me.LoggedRole));
}
/*****************************************************************************/
/*********** Put form to search courses, teachers, documents... **************/
/*****************************************************************************/
void Sch_PutFormToSearch (const char *IconURL)
{
extern const char *Txt_Search;
/***** String to find *****/
fprintf (Gbl.F.Out,"<input type=\"text\" name=\"Search\" size=\"30\" maxlength=\"%u\" value=\"%s\"",
Sch_MAX_LENGTH_STRING_TO_FIND,
Gbl.Search.Str);
if (!Gbl.Search.Str[0])
fprintf (Gbl.F.Out," placeholder=\"%s...\"",
Txt_Search);
fprintf (Gbl.F.Out," style=\"margin:0;\" />");
/***** Send button *****/
fprintf (Gbl.F.Out,"<input type=\"image\" src=\"%s/search16x16.gif\""
" alt=\"%s\" title=\"%s\" class=\"ICON16x16\""
" style=\"padding-top:3px;vertical-align:top;\" />",
IconURL,
Txt_Search,
Txt_Search);
}
/*****************************************************************************/
/************* Get parameter "what to search" from search form ***************/
/*****************************************************************************/
void Sch_GetParamWhatToSearch (void)
{
char UnsignedStr[10+1];
unsigned UnsignedNum;
/***** Get what to search from form *****/
Par_GetParToText ("WhatToSearch",UnsignedStr,10);
// If parameter WhatToSearch is not present, use parameter from session
if (sscanf (UnsignedStr,"%u",&UnsignedNum) == 1)
if (UnsignedNum < Sch_NUM_WHAT_TO_SEARCH)
Gbl.Search.WhatToSearch = (Sch_WhatToSearch_t) UnsignedNum;
}
/*****************************************************************************/
/*********************** Get string from search form *************************/
/*****************************************************************************/
static void Sch_GetParamSearch (char *SearchStr,size_t MaxLength)
{
/***** Get string to search *****/
Par_GetParToText ("Search",SearchStr,MaxLength);
}
/*****************************************************************************/
/************************* Get parameters to search **************************/
/*****************************************************************************/
void Sch_GetParamsSearch (void)
{
/***** What to search? *****/
Sch_GetParamWhatToSearch ();
/***** Get search string *****/
Sch_GetParamSearch (Gbl.Search.Str,sizeof (Gbl.Search.Str) - 1);
/***** Save my search in order to show it in current session *****/
if (Gbl.Usrs.Me.Logged)
Sch_SaveLastSearchIntoSession ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_SysSearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActSysSch,Sco_SCOPE_SYS);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqSysSearch ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_CtySearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCtySch,Sco_SCOPE_CTY);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqCtySearch ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_InsSearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActInsSch,Sco_SCOPE_INS);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqInsSearch ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_CtrSearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCtrSch,Sco_SCOPE_CTR);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqCtrSearch ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_DegSearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActDegSch,Sco_SCOPE_DEG);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqDegSearch ();
}
/*****************************************************************************/
/****************** Search courses, teachers, documents... *******************/
/*****************************************************************************/
void Sch_CrsSearch (void)
{
if (Gbl.Search.Str[0])
{
/***** Show search form again *****/
Sch_PutFormToSearchWithWhatToSearchAndScope (ActCrsSch,Sco_SCOPE_CRS);
/***** Show results of search *****/
Sch_SearchInDB ();
}
else
/***** Show search form and selectors *****/
Sch_ReqCrsSearch ();
}
/*****************************************************************************/
/**** Search institutions, centres, degrees, courses, teachers, documents ****/
/*****************************************************************************/
static void Sch_SearchInDB (void)
{
extern const char *Txt_No_results;
char RangeQuery[256];
unsigned NumResults = 0; // Initialized to avoid warning
/***** Select courses in all the degrees or in current degree *****/
switch (Gbl.Scope.Current)
{
case Sco_SCOPE_UNK:
// Not aplicable
case Sco_SCOPE_SYS:
RangeQuery[0] = '\0';
break;
case Sco_SCOPE_CTY:
sprintf (RangeQuery," AND institutions.CtyCod='%ld'",
Gbl.CurrentCty.Cty.CtyCod);
break;
case Sco_SCOPE_INS:
sprintf (RangeQuery," AND institutions.InsCod='%ld'",
Gbl.CurrentIns.Ins.InsCod);
break;
case Sco_SCOPE_CTR:
sprintf (RangeQuery," AND centres.CtrCod='%ld'",
Gbl.CurrentCtr.Ctr.CtrCod);
break;
case Sco_SCOPE_DEG:
sprintf (RangeQuery," AND degrees.DegCod='%ld'",
Gbl.CurrentDeg.Deg.DegCod);
break;
case Sco_SCOPE_CRS:
sprintf (RangeQuery," AND courses.CrsCod='%ld'",
Gbl.CurrentCrs.Crs.CrsCod);
break;
}
switch (Gbl.Search.WhatToSearch)
{
case Sch_SEARCH_ALL:
NumResults = Sch_SearchInstitutionsInDB (RangeQuery);
NumResults += Sch_SearchCentresInDB (RangeQuery);
NumResults += Sch_SearchDegreesInDB (RangeQuery);
NumResults += Sch_SearchCoursesInDB (RangeQuery);
NumResults += Sch_SearchUsrsInDB (Rol_TEACHER);
NumResults += Sch_SearchUsrsInDB (Rol_STUDENT);
NumResults += Sch_SearchUsrsInDB (Rol__GUEST_);
NumResults += Sch_SearchOpenDocumentsInDB (RangeQuery);
NumResults += Sch_SearchDocumentsInMyCoursesInDB (RangeQuery);
NumResults += Sch_SearchMyDocumentsInDB (RangeQuery);
break;
case Sch_SEARCH_INSTITUTIONS:
NumResults = Sch_SearchInstitutionsInDB (RangeQuery);
break;
case Sch_SEARCH_CENTRES:
NumResults = Sch_SearchCentresInDB (RangeQuery);
break;
case Sch_SEARCH_DEGREES:
NumResults = Sch_SearchDegreesInDB (RangeQuery);
break;
case Sch_SEARCH_COURSES:
NumResults = Sch_SearchCoursesInDB (RangeQuery);
break;
case Sch_SEARCH_TEACHERS:
NumResults = Sch_SearchUsrsInDB (Rol_TEACHER);
break;
case Sch_SEARCH_STUDENTS:
NumResults = Sch_SearchUsrsInDB (Rol_STUDENT);
break;
case Sch_SEARCH_GUESTS:
NumResults = Sch_SearchUsrsInDB (Rol__GUEST_);
break;
case Sch_SEARCH_OPEN_DOCUMENTS:
NumResults = Sch_SearchOpenDocumentsInDB (RangeQuery);
break;
case Sch_SEARCH_DOCUM_IN_MY_COURSES:
NumResults = Sch_SearchDocumentsInMyCoursesInDB (RangeQuery);
break;
case Sch_SEARCH_MY_DOCUMENTS:
NumResults = Sch_SearchMyDocumentsInDB (RangeQuery);
break;
}
if (NumResults == 0)
Lay_ShowAlert (Lay_INFO,Txt_No_results);
}
/*****************************************************************************/
/********************** Search institutions in database **********************/
/*****************************************************************************/
// Returns number of institutions found
static unsigned Sch_SearchInstitutionsInDB (const char *RangeQuery)
{
extern const char *Txt_STR_LANG_ID[Txt_NUM_LANGUAGES];
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[1024+Sch_MAX_LENGTH_SEARCH_QUERY*2];
/***** Check scope *****/
if (Gbl.Scope.Current != Sco_SCOPE_CTR &&
Gbl.Scope.Current != Sco_SCOPE_DEG &&
Gbl.Scope.Current != Sco_SCOPE_CRS)
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_INSTITUTIONS))
/***** Split institutions string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"institutions.FullName",NULL,NULL))
{
/***** Query database and list institutions found *****/
sprintf (Query,"SELECT institutions.InsCod"
" FROM institutions,countries"
" WHERE %s"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" ORDER BY institutions.FullName,countries.Name_%s",
SearchQuery,RangeQuery,
Txt_STR_LANG_ID[Gbl.Prefs.Language]);
return Ins_ListInssFound (Query);
}
return 0;
}
/*****************************************************************************/
/************************* Search centres in database ************************/
/*****************************************************************************/
// Returns number of centres found
static unsigned Sch_SearchCentresInDB (const char *RangeQuery)
{
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[1024+Sch_MAX_LENGTH_SEARCH_QUERY*2];
/***** Check scope *****/
if (Gbl.Scope.Current != Sco_SCOPE_DEG &&
Gbl.Scope.Current != Sco_SCOPE_CRS)
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_CENTRES))
/***** Split centre string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"centres.FullName",NULL,NULL))
{
/***** Query database and list centres found *****/
sprintf (Query,"SELECT centres.CtrCod"
" FROM centres,institutions,countries"
" WHERE %s"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" ORDER BY centres.FullName,institutions.FullName",
SearchQuery,RangeQuery);
return Ctr_ListCtrsFound (Query);
}
return 0;
}
/*****************************************************************************/
/************************* Search degrees in database ************************/
/*****************************************************************************/
// Returns number of degrees found
static unsigned Sch_SearchDegreesInDB (const char *RangeQuery)
{
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[1024+Sch_MAX_LENGTH_SEARCH_QUERY*2];
/***** Check scope *****/
if (Gbl.Scope.Current != Sco_SCOPE_CRS)
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_DEGREES))
/***** Split degree string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"degrees.FullName",NULL,NULL))
{
/***** Query database and list degrees found *****/
sprintf (Query,"SELECT degrees.DegCod"
" FROM degrees,centres,institutions,countries"
" WHERE %s"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" ORDER BY degrees.FullName,institutions.FullName",
SearchQuery,RangeQuery);
return Deg_ListDegsFound (Query);
}
return 0;
}
/*****************************************************************************/
/************************* Search courses in database ************************/
/*****************************************************************************/
// Returns number of courses found
static unsigned Sch_SearchCoursesInDB (const char *RangeQuery)
{
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[1024+Sch_MAX_LENGTH_SEARCH_QUERY*2];
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_COURSES))
/***** Split course string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"courses.FullName",NULL,NULL))
{
/***** Query database and list courses found *****/
sprintf (Query,"SELECT degrees.DegCod,courses.CrsCod,degrees.ShortName,degrees.FullName,"
"courses.Year,courses.Semester,courses.FullName,centres.ShortName"
" FROM courses,degrees,centres,institutions,countries"
" WHERE %s"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" ORDER BY courses.FullName,institutions.FullName,degrees.FullName,courses.Year,courses.Semester",
SearchQuery,RangeQuery);
return Crs_ListCrssFound (Query);
}
return 0;
}
/*****************************************************************************/
/************************* Search teachers in database ***********************/
/*****************************************************************************/
// Returns number of teachers found
static unsigned Sch_SearchUsrsInDB (Rol_Role_t Role)
{
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch ( Role == Rol_TEACHER ? Sch_SEARCH_TEACHERS :
(Role == Rol_STUDENT ? Sch_SEARCH_STUDENTS :
Sch_SEARCH_GUESTS)))
/***** Split user string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,
"CONCAT_WS(' ',usr_data.FirstName,usr_data.Surname1,usr_data.Surname2)",
NULL,NULL))
/***** Query database and list users found *****/
return Usr_ListUsrsFound (Role,SearchQuery);
return 0;
}
/*****************************************************************************/
/********************** Search open documents in database ********************/
/*****************************************************************************/
// Returns number of documents found
static unsigned Sch_SearchOpenDocumentsInDB (const char *RangeQuery)
{
extern const char *Txt_Open_documents;
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[(512+Sch_MAX_LENGTH_SEARCH_QUERY)*4];
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_OPEN_DOCUMENTS))
/***** Split document string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"SUBSTRING_INDEX(files.Path,'/',-1)",
"_latin1 "," COLLATE latin1_general_ci"))
{
/***** Build the query *****/
sprintf (Query,"SELECT * FROM "
"("
"SELECT files.FilCod," // Institution
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"'-1' AS CtrCod,'' AS CtrShortName,"
"'-1' AS DegCod,'' AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.Public='Y' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Centre
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"'-1' AS DegCod,'' AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.Public='Y' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Degree
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"'-1','' AS CrsShortName,"
"'-1'"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.Public='Y' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Course
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"courses.CrsCod,courses.ShortName AS CrsShortName,"
"'-1'"
" FROM files,courses,degrees,centres,institutions,countries"
" WHERE files.Public='Y' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=courses.CrsCod"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
") AS selected_files"
" WHERE PathFromRoot<>''"
" ORDER BY InsShortName,CtrShortName,DegShortName,CrsShortName,PathFromRoot",
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_INS,
(unsigned) Brw_ADMI_SHARE_INS,
RangeQuery,
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_CTR,
(unsigned) Brw_ADMI_SHARE_CTR,
RangeQuery,
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_DEG,
(unsigned) Brw_ADMI_SHARE_DEG,
RangeQuery,
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_CRS,
(unsigned) Brw_ADMI_SHARE_CRS,
RangeQuery);
/***** Query database and list documents found *****/
/* if (Gbl.Usrs.Me.LoggedRole == Rol_ROLE_SYS_ADM)
Lay_ShowAlert (Lay_INFO,Query); */
return Brw_ListDocsFound (Query,Txt_Open_documents);
}
return 0;
}
/*****************************************************************************/
/**************** Search documents in my courses in database *****************/
/*****************************************************************************/
static unsigned Sch_SearchDocumentsInMyCoursesInDB (const char *RangeQuery)
{
extern const char *Txt_DOCUM_in_my_courses;
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[(512+Sch_MAX_LENGTH_SEARCH_QUERY)*2];
unsigned NumDocs;
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_DOCUM_IN_MY_COURSES))
/***** Split document string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"SUBSTRING_INDEX(files.Path,'/',-1)",
"_latin1 "," COLLATE latin1_general_ci"))
{
/***** Create temporary table with codes of files in documents and shared areas accessible by me.
It is necessary to speed up the second query *****/
sprintf (Query,"CREATE TEMPORARY TABLE my_files_crs (FilCod INT NOT NULL,UNIQUE INDEX(FilCod)) ENGINE=MEMORY"
" SELECT files.FilCod FROM crs_usr,files"
" WHERE crs_usr.UsrCod='%ld'"
" AND crs_usr.CrsCod=files.Cod"
" AND files.FileBrowser IN ('%u','%u','%u')",
Gbl.Usrs.Me.UsrDat.UsrCod,
(unsigned) Brw_ADMI_DOCUM_CRS,
(unsigned) Brw_ADMI_SHARE_CRS,
(unsigned) Brw_ADMI_MARKS_CRS);
if (mysql_query (&Gbl.mysql,Query))
DB_ExitOnMySQLError ("can not create temporary table");
sprintf (Query,"CREATE TEMPORARY TABLE my_files_grp (FilCod INT NOT NULL,UNIQUE INDEX(FilCod)) ENGINE=MEMORY"
" SELECT files.FilCod FROM crs_grp_usr,files"
" WHERE crs_grp_usr.UsrCod='%ld'"
" AND crs_grp_usr.GrpCod=files.Cod"
" AND files.FileBrowser IN ('%u','%u','%u')",
Gbl.Usrs.Me.UsrDat.UsrCod,
(unsigned) Brw_ADMI_DOCUM_GRP,
(unsigned) Brw_ADMI_SHARE_GRP,
(unsigned) Brw_ADMI_MARKS_GRP);
/* if (Gbl.Usrs.Me.LoggedRole == Rol_ROLE_SYS_ADM)
Lay_ShowAlert (Lay_INFO,Query); */
if (mysql_query (&Gbl.mysql,Query))
DB_ExitOnMySQLError ("can not create temporary table");
/***** Build the query *****/
sprintf (Query,"SELECT * FROM "
"("
"SELECT files.FilCod,"
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"courses.CrsCod,courses.ShortName AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,courses,degrees,centres,institutions,countries"
" WHERE files.FilCod IN (SELECT FilCod FROM my_files_crs) AND %s"
" AND files.FileBrowser IN ('%u','%u','%u')"
" AND files.Cod=courses.CrsCod"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod,"
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"courses.CrsCod,courses.ShortName AS CrsShortName,"
"crs_grp.GrpCod"
" FROM files,crs_grp,crs_grp_types,courses,degrees,centres,institutions,countries"
" WHERE files.FilCod IN (SELECT FilCod FROM my_files_grp) AND %s"
" AND files.FileBrowser IN ('%u','%u','%u')"
" AND files.Cod=crs_grp.GrpCod"
" AND crs_grp.GrpTypCod=crs_grp_types.GrpTypCod"
" AND crs_grp_types.CrsCod=courses.CrsCod"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
") AS selected_files"
" WHERE PathFromRoot<>''"
" ORDER BY InsShortName,CtrShortName,DegShortName,CrsShortName,PathFromRoot",
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_CRS,
(unsigned) Brw_ADMI_SHARE_CRS,
(unsigned) Brw_ADMI_MARKS_CRS,
RangeQuery,
SearchQuery,
(unsigned) Brw_ADMI_DOCUM_GRP,
(unsigned) Brw_ADMI_SHARE_GRP,
(unsigned) Brw_ADMI_MARKS_GRP,
RangeQuery);
/***** Query database and list documents found *****/
/* if (Gbl.Usrs.Me.LoggedRole == Rol_ROLE_SYS_ADM)
Lay_ShowAlert (Lay_INFO,Query); */
NumDocs = Brw_ListDocsFound (Query,Txt_DOCUM_in_my_courses);
/***** Drop temporary table *****/
sprintf (Query,"DROP TEMPORARY TABLE IF EXISTS my_files_crs,my_files_grp");
if (mysql_query (&Gbl.mysql,Query))
DB_ExitOnMySQLError ("can not remove temporary table");
return NumDocs;
}
return 0;
}
/*****************************************************************************/
/********************** Search my documents in database **********************/
/*****************************************************************************/
static unsigned Sch_SearchMyDocumentsInDB (const char *RangeQuery)
{
extern const char *Txt_My_documents;
char SearchQuery[Sch_MAX_LENGTH_SEARCH_QUERY+1];
char Query[(512+Sch_MAX_LENGTH_SEARCH_QUERY)*5];
/***** Check user's permission *****/
if (Sch_CheckIfIHavePermissionToSearch (Sch_SEARCH_MY_DOCUMENTS))
/***** Split document string into words *****/
if (Sch_BuildSearchQuery (SearchQuery,"SUBSTRING_INDEX(files.Path,'/',-1)",
"_latin1 "," COLLATE latin1_general_ci"))
{
/***** Build the query *****/
sprintf (Query,"SELECT * FROM "
"("
"SELECT files.FilCod," // Institution
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"'-1' AS CtrCod,'' AS CtrShortName,"
"'-1' AS DegCod,'' AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Centre
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"'-1' AS DegCod,'' AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Degree
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,degrees,centres,institutions,countries"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser IN ('%u','%u')"
" AND files.Cod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Course
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"courses.CrsCod,courses.ShortName AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files,courses,degrees,centres,institutions,countries"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser IN ('%u','%u','%u')"
" AND files.Cod=courses.CrsCod"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Group
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"institutions.InsCod,institutions.ShortName AS InsShortName,"
"centres.CtrCod,centres.ShortName AS CtrShortName,"
"degrees.DegCod,degrees.ShortName AS DegShortName,"
"courses.CrsCod,courses.ShortName AS CrsShortName,"
"crs_grp.GrpCod"
" FROM files,crs_grp,crs_grp_types,courses,degrees,centres,institutions,countries"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser IN ('%u','%u','%u')"
" AND files.Cod=crs_grp.GrpCod"
" AND crs_grp.GrpTypCod=crs_grp_types.GrpTypCod"
" AND crs_grp_types.CrsCod=courses.CrsCod"
" AND courses.DegCod=degrees.DegCod"
" AND degrees.CtrCod=centres.CtrCod"
" AND centres.InsCod=institutions.InsCod"
" AND institutions.CtyCod=countries.CtyCod"
"%s"
" UNION "
"SELECT files.FilCod," // Briefcase
"SUBSTRING(files.Path,LOCATE('/',files.Path)) AS PathFromRoot,"
"'-1' AS InsCod,'' AS InsShortName,"
"'-1' AS CtrCod,'' AS CtrShortName,"
"'-1' AS DegCod,'' AS DegShortName,"
"'-1' AS CrsCod,'' AS CrsShortName,"
"'-1' AS GrpCod"
" FROM files"
" WHERE files.PublisherUsrCod='%ld' AND %s"
" AND files.FileBrowser='%u'"
") AS selected_files"
" WHERE PathFromRoot<>''"
" ORDER BY InsShortName,CtrShortName,DegShortName,CrsShortName,PathFromRoot",
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_DOCUM_INS,
(unsigned) Brw_ADMI_SHARE_INS,
RangeQuery,
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_DOCUM_CTR,
(unsigned) Brw_ADMI_SHARE_CTR,
RangeQuery,
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_DOCUM_DEG,
(unsigned) Brw_ADMI_SHARE_DEG,
RangeQuery,
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_DOCUM_CRS,
(unsigned) Brw_ADMI_SHARE_CRS,
(unsigned) Brw_ADMI_MARKS_CRS,
RangeQuery,
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_DOCUM_GRP,
(unsigned) Brw_ADMI_SHARE_GRP,
(unsigned) Brw_ADMI_MARKS_GRP,
RangeQuery,
Gbl.Usrs.Me.UsrDat.UsrCod,SearchQuery,
(unsigned) Brw_ADMI_BRIEF_USR);
/***** Query database and list documents found *****/
/* if (Gbl.Usrs.Me.LoggedRole == Rol_ROLE_SYS_ADM)
Lay_ShowAlert (Lay_INFO,Query); */
return Brw_ListDocsFound (Query,Txt_My_documents);
}
return 0;
}
/*****************************************************************************/
/****** Build a search query by splitting a string to search into words ******/
/*****************************************************************************/
// Returns true if a valid search query is biult
// Returns false when no valid search query
static bool Sch_BuildSearchQuery (char *SearchQuery,const char *FieldName,
const char *CharSet,const char *Collate)
{
extern const char *Txt_The_search_term_must_be_longer;
static bool WarningMessageWritten = false;
const char *Ptr;
unsigned NumWords;
size_t LengthWord;
size_t MaxLengthWord = 0;
char SearchWord[Sch_MAX_LENGTH_SEARCH_WORD+1];
bool SearchWordIsValid = true;
SearchQuery[0] = '\0';
Ptr = Gbl.Search.Str;
for (NumWords = 0;
NumWords < Sch_MAX_WORDS_IN_SEARCH && *Ptr;
NumWords++)
{
/* Get next word */
Str_GetNextStringUntilSpace (&Ptr,SearchWord,Sch_MAX_LENGTH_SEARCH_WORD);
/* Is this word valid? */
switch (Gbl.Search.WhatToSearch)
{
case Sch_SEARCH_OPEN_DOCUMENTS:
case Sch_SEARCH_DOCUM_IN_MY_COURSES:
case Sch_SEARCH_MY_DOCUMENTS:
SearchWordIsValid = Str_ConvertFilFolLnkNameToValid (SearchWord);
break;
default:
SearchWordIsValid = true;
break;
}
/* Concatenate word to search string */
if (SearchWordIsValid)
{
LengthWord = strlen (SearchWord);
if (LengthWord > MaxLengthWord)
MaxLengthWord = LengthWord;
if (strlen (SearchQuery) + LengthWord + 512 > Sch_MAX_LENGTH_SEARCH_QUERY) // Prevent string overflow
break;
if (NumWords)
strcat (SearchQuery," AND ");
strcat (SearchQuery,FieldName);
strcat (SearchQuery," LIKE ");
if (CharSet)
if (CharSet[0])
strcat (SearchQuery,CharSet);
strcat (SearchQuery,"'%");
strcat (SearchQuery,SearchWord);
strcat (SearchQuery,"%'");
if (Collate)
if (Collate[0])
strcat (SearchQuery,Collate);
}
}
/***** If search string valid? *****/
if (MaxLengthWord >= Sch_MIN_LENGTH_LONGEST_WORD)
return true;
else // Too short
{
if (!WarningMessageWritten) // To avoid repetitions
{
Lay_ShowAlert (Lay_WARNING,Txt_The_search_term_must_be_longer);
WarningMessageWritten = true;
}
return false;
}
}
/*****************************************************************************/
/********************** Save last search into session ************************/
/*****************************************************************************/
static void Sch_SaveLastSearchIntoSession (void)
{
char Query[512];
if (Gbl.Usrs.Me.Logged)
{
/***** Save last search in session *****/
sprintf (Query,"UPDATE sessions SET WhatToSearch='%u',SearchString='%s'"
" WHERE SessionId='%s'",
(unsigned) Gbl.Search.WhatToSearch,
Gbl.Search.Str,
Gbl.Session.Id);
DB_QueryUPDATE (Query,"can not update last search in session");
/***** Update my last type of search *****/
// WhatToSearch is stored in usr_last for next time I log in
// In other existing sessions distinct to this, WhatToSearch will remain unchanged
sprintf (Query,"UPDATE usr_last SET WhatToSearch='%u'"
" WHERE UsrCod='%ld'",
(unsigned) Gbl.Search.WhatToSearch,
Gbl.Usrs.Me.UsrDat.UsrCod);
DB_QueryUPDATE (Query,"can not update type of search in user's last data");
}
}
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