swad-core/swad_place.c

764 lines
25 KiB
C

// swad_place.c: places
/*
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 <stddef.h> // For NULL
#include <stdlib.h> // For calloc
#include <string.h> // For string functions
#include "swad_action_list.h"
#include "swad_alert.h"
#include "swad_box.h"
#include "swad_center_database.h"
#include "swad_constant.h"
#include "swad_database.h"
#include "swad_error.h"
#include "swad_form.h"
#include "swad_global.h"
#include "swad_HTML.h"
#include "swad_language.h"
#include "swad_parameter.h"
#include "swad_parameter_code.h"
#include "swad_place.h"
#include "swad_place_database.h"
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/***************************** Private variables *****************************/
/*****************************************************************************/
static struct Plc_Place *Plc_EditingPlc = NULL; // Static variable to keep the place being edited
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
static Usr_Can_t Plc_CheckIfICanEditPlaces (void);
static Plc_Order_t Plc_GetParPlcOrder (void);
static void Plc_PutIconsListingPlaces (__attribute__((unused)) void *Args);
static void Plc_PutIconToEditPlaces (void);
static void Plc_EditPlacesInternal (void);
static void Plc_PutIconsEditingPlaces (__attribute__((unused)) void *Args);
static void Plc_GetPlaceDataFromRow (MYSQL_RES *mysql_res,struct Plc_Place *Plc);
static void Plc_ListPlacesForEdition (const struct Plc_Places *Places);
static void Plc_PutParPlcCod (void *PlcCod);
static void Plc_RenamePlace (Nam_ShrtOrFullName_t ShrtOrFull);
static void Plc_PutFormToCreatePlace (void);
static void Plc_PutHeadPlaces (void);
static void Plc_EditingPlaceConstructor (void);
static void Plc_EditingPlaceDestructor (void);
/*****************************************************************************/
/************************* Check if I can edit places ************************/
/*****************************************************************************/
static Usr_Can_t Plc_CheckIfICanEditPlaces (void)
{
static Usr_Can_t Plc_ICanEditPlaces[Rol_NUM_ROLES] =
{
/* Users who can edit */
[Rol_INS_ADM] = Usr_CAN,
[Rol_SYS_ADM] = Usr_CAN,
};
return Plc_ICanEditPlaces[Gbl.Usrs.Me.Role.Logged];
}
/*****************************************************************************/
/**************************** Reset places context ***************************/
/*****************************************************************************/
void Plc_ResetPlaces (struct Plc_Places *Places)
{
Places->Num = 0;
Places->Lst = NULL;
Places->SelectedOrder = Plc_ORDER_DEFAULT;
}
/*****************************************************************************/
/***************************** List all places *******************************/
/*****************************************************************************/
void Plc_SeeAllPlaces (void)
{
extern const char *Hlp_INSTITUTION_Places;
extern const char *Txt_Places;
extern const char *Txt_PLACES_HELP_ORDER[2];
extern const char *Txt_PLACES_ORDER[2];
extern const char *Txt_Other_places;
extern const char *Txt_Place_unspecified;
struct Plc_Places Places;
Plc_Order_t Order;
unsigned NumPlc;
unsigned NumCtrsWithPlc = 0;
unsigned NumCtrsInOtherPlcs;
if (Gbl.Hierarchy.Node[Hie_INS].HieCod > 0)
{
/***** Reset places context *****/
Plc_ResetPlaces (&Places);
/***** Get parameter with the type of order in the list of places *****/
Places.SelectedOrder = Plc_GetParPlcOrder ();
/***** Get list of places *****/
Plc_GetListPlaces (&Places);
/***** Begin box *****/
Box_BoxBegin (Txt_Places,Plc_PutIconsListingPlaces,NULL,
Hlp_INSTITUTION_Places,Box_NOT_CLOSABLE);
/***** Table head *****/
HTM_TABLE_BeginWideMarginPadding (2);
HTM_TR_Begin (NULL);
for (Order = (Plc_Order_t) 0;
Order <= (Plc_Order_t) (Plc_NUM_ORDERS - 1);
Order++)
{
HTM_TH_Begin (HTM_HEAD_LEFT);
Frm_BeginForm (ActSeePlc);
Par_PutParUnsigned (NULL,"Order",(unsigned) Order);
HTM_BUTTON_Submit_Begin (Txt_PLACES_HELP_ORDER[Order],
"class=\"BT_LINK\"");
if (Order == Places.SelectedOrder)
HTM_U_Begin ();
HTM_Txt (Txt_PLACES_ORDER[Order]);
if (Order == Places.SelectedOrder)
HTM_U_End ();
HTM_BUTTON_End ();
Frm_EndForm ();
HTM_TH_End ();
}
HTM_TR_End ();
/***** Write all places and their nuber of centers *****/
for (NumPlc = 0;
NumPlc < Places.Num;
NumPlc++)
{
/* Write data of this place */
HTM_TR_Begin (NULL);
HTM_TD_Txt_Left (Places.Lst[NumPlc].FullName);
HTM_TD_Unsigned (Places.Lst[NumPlc].NumCtrs);
HTM_TR_End ();
NumCtrsWithPlc += Places.Lst[NumPlc].NumCtrs;
}
/***** Separation row *****/
HTM_TR_Begin (NULL);
HTM_TD_Begin ("colspan=\"2\" class=\"DAT_%s\"",
The_GetSuffix ());
HTM_NBSP ();
HTM_TD_End ();
HTM_TR_End ();
/***** Write centers (of the current institution) with other place *****/
NumCtrsInOtherPlcs = Ctr_DB_GetNumCtrsInPlc (0);
HTM_TR_Begin (NULL);
HTM_TD_Txt_Left (Txt_Other_places);
HTM_TD_Unsigned (NumCtrsInOtherPlcs);
HTM_TR_End ();
NumCtrsWithPlc += NumCtrsInOtherPlcs;
/***** Write centers (of the current institution) with no place *****/
HTM_TR_Begin (NULL);
HTM_TD_Txt_Left (Txt_Place_unspecified);
HTM_TD_Unsigned (Hie_GetNumNodesInHieLvl (Hie_CTR, // Number of centers...
Hie_INS, // ...in institution
Gbl.Hierarchy.Node[Hie_INS].HieCod) -
NumCtrsWithPlc);
HTM_TR_End ();
/***** End table *****/
HTM_TABLE_End ();
/***** End box *****/
Box_BoxEnd ();
/***** Free list of places *****/
Plc_FreeListPlaces (&Places);
}
}
/*****************************************************************************/
/********** Get parameter with the type or order in list of places ***********/
/*****************************************************************************/
static Plc_Order_t Plc_GetParPlcOrder (void)
{
return (Plc_Order_t) Par_GetParUnsignedLong ("Order",
0,
Plc_NUM_ORDERS - 1,
(unsigned long) Plc_ORDER_DEFAULT);
}
/*****************************************************************************/
/****************** Put contextual icons in list of places *******************/
/*****************************************************************************/
static void Plc_PutIconsListingPlaces (__attribute__((unused)) void *Args)
{
/***** Put icon to edit places *****/
if (Plc_CheckIfICanEditPlaces () == Usr_CAN)
Plc_PutIconToEditPlaces ();
}
/*****************************************************************************/
/********************** Put a link (form) to edit places *********************/
/*****************************************************************************/
static void Plc_PutIconToEditPlaces (void)
{
Ico_PutContextualIconToEdit (ActEdiPlc,NULL,NULL,NULL);
}
/*****************************************************************************/
/*************************** Put forms to edit places ************************/
/*****************************************************************************/
void Plc_EditPlaces (void)
{
/***** Place constructor *****/
Plc_EditingPlaceConstructor ();
/***** Edit places *****/
Plc_EditPlacesInternal ();
/***** Place destructor *****/
Plc_EditingPlaceDestructor ();
}
static void Plc_EditPlacesInternal (void)
{
extern const char *Hlp_INSTITUTION_Places_edit;
extern const char *Txt_Places;
struct Plc_Places Places;
/***** Reset places context *****/
Plc_ResetPlaces (&Places);
/***** Get list of places *****/
Plc_GetListPlaces (&Places);
/***** Begin box *****/
Box_BoxBegin (Txt_Places,Plc_PutIconsEditingPlaces,NULL,
Hlp_INSTITUTION_Places_edit,Box_NOT_CLOSABLE);
/***** Put a form to create a new place *****/
Plc_PutFormToCreatePlace ();
/***** Forms to edit current places *****/
if (Places.Num)
Plc_ListPlacesForEdition (&Places);
/***** End box *****/
Box_BoxEnd ();
/***** Free list of places *****/
Plc_FreeListPlaces (&Places);
}
/*****************************************************************************/
/**************** Put contextual icons in edition of places *****************/
/*****************************************************************************/
static void Plc_PutIconsEditingPlaces (__attribute__((unused)) void *Args)
{
/***** Put icon to view places *****/
Ico_PutContextualIconToView (ActSeePlc,NULL,NULL,NULL);
}
/*****************************************************************************/
/************************** Put icon to view places **************************/
/*****************************************************************************/
void Plc_PutIconToViewPlaces (void)
{
Lay_PutContextualLinkOnlyIcon (ActSeePlc,NULL,
Ins_PutParInsCod,&Gbl.Hierarchy.Node[Hie_INS].HieCod,
"map-marker-alt.svg",Ico_BLACK);
}
/*****************************************************************************/
/******************************* List all places *****************************/
/*****************************************************************************/
void Plc_GetListPlaces (struct Plc_Places *Places)
{
MYSQL_RES *mysql_res;
unsigned NumPlc;
/***** Get places from database *****/
if ((Places->Num = Plc_DB_GetListPlaces (&mysql_res,Places->SelectedOrder))) // Places found...
{
/***** Create list with courses in center *****/
if ((Places->Lst = calloc ((size_t) Places->Num,
sizeof (*Places->Lst))) == NULL)
Err_NotEnoughMemoryExit ();
/***** Get the places *****/
for (NumPlc = 0;
NumPlc < Places->Num;
NumPlc++)
Plc_GetPlaceDataFromRow (mysql_res,&Places->Lst[NumPlc]);
}
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
}
/*****************************************************************************/
/************************ Get place data using its code **********************/
/*****************************************************************************/
void Plc_GetPlaceDataByCod (struct Plc_Place *Plc)
{
extern const char *Txt_Place_unspecified;
extern const char *Txt_Another_place;
MYSQL_RES *mysql_res;
/***** Clear data *****/
Plc->ShrtName[0] = '\0';
Plc->FullName[0] = '\0';
Plc->NumCtrs = 0;
/***** Check if place code is correct *****/
if (Plc->PlcCod < 0)
{
Str_Copy (Plc->ShrtName,Txt_Place_unspecified,sizeof (Plc->ShrtName) - 1);
Str_Copy (Plc->FullName,Txt_Place_unspecified,sizeof (Plc->FullName) - 1);
}
else if (Plc->PlcCod == 0)
{
Str_Copy (Plc->ShrtName,Txt_Another_place ,sizeof (Plc->ShrtName) - 1);
Str_Copy (Plc->FullName,Txt_Another_place ,sizeof (Plc->FullName) - 1);
}
else if (Plc->PlcCod > 0)
{
/***** Get data of a place from database *****/
if (Plc_DB_GetPlaceDataByCod (&mysql_res,Plc->PlcCod)) // Place found...
Plc_GetPlaceDataFromRow (mysql_res,Plc);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
}
}
/*****************************************************************************/
/********************** Get place data from database row *********************/
/*****************************************************************************/
static void Plc_GetPlaceDataFromRow (MYSQL_RES *mysql_res,struct Plc_Place *Plc)
{
MYSQL_ROW row;
/***** Get next row from result *****/
row = mysql_fetch_row (mysql_res);
/***** Get place code (row[0]) *****/
if ((Plc->PlcCod = Str_ConvertStrCodToLongCod (row[0])) <= 0)
Err_WrongPlaceExit ();
/***** Get the short (row[1]) and full (row[2]) names of the place *****/
Str_Copy (Plc->ShrtName,row[1],sizeof (Plc->ShrtName) - 1);
Str_Copy (Plc->FullName,row[2],sizeof (Plc->FullName) - 1);
/***** Get number of centers in this place (row[3]) *****/
if (sscanf (row[3],"%u",&Plc->NumCtrs) != 1)
Plc->NumCtrs = 0;
}
/*****************************************************************************/
/**************************** Free list of places ****************************/
/*****************************************************************************/
void Plc_FreeListPlaces (struct Plc_Places *Places)
{
if (Places->Lst)
{
/***** Free memory used by the list of places in institution *****/
free (Places->Lst);
Places->Lst = NULL;
Places->Num = 0;
}
}
/*****************************************************************************/
/***************************** List all places *******************************/
/*****************************************************************************/
static void Plc_ListPlacesForEdition (const struct Plc_Places *Places)
{
static Act_Action_t ActionRename[Nam_NUM_SHRT_FULL_NAMES] =
{
[Nam_SHRT_NAME] = ActRenPlcSho,
[Nam_FULL_NAME] = ActRenPlcFul,
};
unsigned NumPlc;
struct Plc_Place *Plc;
const char *Names[Nam_NUM_SHRT_FULL_NAMES];
/***** Begin table *****/
HTM_TABLE_Begin ("TBL_SCROLL");
/***** Write heading *****/
Plc_PutHeadPlaces ();
/***** Write all places *****/
for (NumPlc = 0;
NumPlc < Places->Num;
NumPlc++)
{
Plc = &Places->Lst[NumPlc];
HTM_TR_Begin (NULL);
/* Put icon to remove place */
HTM_TD_Begin ("class=\"BM\"");
if (Plc->NumCtrs) // Place has centers ==> deletion forbidden
Ico_PutIconRemovalNotAllowed ();
else
Ico_PutContextualIconToRemove (ActRemPlc,NULL,
Plc_PutParPlcCod,&Plc->PlcCod);
HTM_TD_End ();
/* Place code */
HTM_TD_Begin ("class=\"CODE DAT_%s\"",The_GetSuffix ());
HTM_Long (Plc->PlcCod);
HTM_TD_End ();
/* Place short name and full name */
Names[Nam_SHRT_NAME] = Plc->ShrtName;
Names[Nam_FULL_NAME] = Plc->FullName;
Nam_ExistingShortAndFullNames (ActionRename,
ParCod_Plc,Plc->PlcCod,
Names,
Frm_PUT_FORM);
/* Number of centers */
HTM_TD_Unsigned (Plc->NumCtrs);
HTM_TR_End ();
}
/***** End table *****/
HTM_TABLE_End ();
}
/*****************************************************************************/
/******************** Write parameter with code of place *********************/
/*****************************************************************************/
static void Plc_PutParPlcCod (void *PlcCod)
{
if (PlcCod)
ParCod_PutPar (ParCod_Plc,*((long *) PlcCod));
}
/*****************************************************************************/
/******************************* Remove a place ******************************/
/*****************************************************************************/
void Plc_RemovePlace (void)
{
extern const char *Txt_To_remove_a_place_you_must_first_remove_all_centers_of_that_place;
extern const char *Txt_Place_X_removed;
/***** Place constructor *****/
Plc_EditingPlaceConstructor ();
/***** Get place code *****/
Plc_EditingPlc->PlcCod = ParCod_GetAndCheckPar (ParCod_Plc);
/***** Get place data from database *****/
Plc_GetPlaceDataByCod (Plc_EditingPlc);
/***** Check if this place has centers *****/
if (Plc_EditingPlc->NumCtrs) // Place has centers ==> don't remove
Ale_CreateAlert (Ale_WARNING,NULL,
Txt_To_remove_a_place_you_must_first_remove_all_centers_of_that_place);
else // Place has no centers ==> remove it
{
/***** Remove place *****/
Plc_DB_RemovePlace (Plc_EditingPlc->PlcCod);
/***** Write message to show the change made *****/
Ale_CreateAlert (Ale_SUCCESS,NULL,
Txt_Place_X_removed,
Plc_EditingPlc->FullName);
}
}
/*****************************************************************************/
/********************* Change the short name of a place **********************/
/*****************************************************************************/
void Plc_RenamePlaceShrt (void)
{
/***** Place constructor *****/
Plc_EditingPlaceConstructor ();
/***** Rename place *****/
Plc_RenamePlace (Nam_SHRT_NAME);
}
/*****************************************************************************/
/********************* Change the full name of a place ***********************/
/*****************************************************************************/
void Plc_RenamePlaceFull (void)
{
/***** Place constructor *****/
Plc_EditingPlaceConstructor ();
/***** Rename place *****/
Plc_RenamePlace (Nam_FULL_NAME);
}
/*****************************************************************************/
/************************ Change the name of a place *************************/
/*****************************************************************************/
static void Plc_RenamePlace (Nam_ShrtOrFullName_t ShrtOrFull)
{
extern const char *Nam_Fields[Nam_NUM_SHRT_FULL_NAMES];
extern unsigned Nam_MaxBytes[Nam_NUM_SHRT_FULL_NAMES];
extern const char *Txt_X_already_exists;
extern const char *Txt_The_place_X_has_been_renamed_as_Y;
extern const char *Txt_The_name_X_has_not_changed;
char *CurrentName[Nam_NUM_SHRT_FULL_NAMES] =
{
[Nam_SHRT_NAME] = Plc_EditingPlc->ShrtName,
[Nam_FULL_NAME] = Plc_EditingPlc->FullName,
};
char NewName[Nam_MAX_BYTES_FULL_NAME + 1];
/***** Get parameters from form *****/
/* Get the code of the place */
Plc_EditingPlc->PlcCod = ParCod_GetAndCheckPar (ParCod_Plc);
/* Get the new name for the place */
Nam_GetParShrtOrFullName (ShrtOrFull,NewName);
/***** Get place old names from database *****/
Plc_GetPlaceDataByCod (Plc_EditingPlc);
/***** Check if new name is empty *****/
if (NewName[0])
{
/***** Check if old and new names are the same
(this happens when return is pressed without changes) *****/
if (strcmp (CurrentName[ShrtOrFull],NewName)) // Different names
{
/***** If place was in database... *****/
if (Plc_DB_CheckIfPlaceNameExists (Nam_Fields[ShrtOrFull],
NewName,Plc_EditingPlc->PlcCod,
Gbl.Hierarchy.Node[Hie_INS].HieCod,
0)) // Unused
Ale_CreateAlert (Ale_WARNING,NULL,Txt_X_already_exists,NewName);
else
{
/* Update the table changing old name by new name */
Plc_DB_UpdatePlcName (Plc_EditingPlc->PlcCod,
Nam_Fields[ShrtOrFull],NewName);
/* Write message to show the change made */
Ale_CreateAlert (Ale_SUCCESS,NULL,
Txt_The_place_X_has_been_renamed_as_Y,
CurrentName[ShrtOrFull],NewName);
}
}
else // The same name
Ale_CreateAlert (Ale_INFO,NULL,
Txt_The_name_X_has_not_changed,
CurrentName[ShrtOrFull]);
}
else
Ale_CreateAlertYouCanNotLeaveFieldEmpty ();
/***** Update place name *****/
Str_Copy (CurrentName[ShrtOrFull],NewName,Nam_MaxBytes[ShrtOrFull]);
}
/*****************************************************************************/
/********** Show alerts after changing a place and continue editing **********/
/*****************************************************************************/
void Plc_ContEditAfterChgPlc (void)
{
/***** Write message to show the change made *****/
Ale_ShowAlerts (NULL);
/***** Show the form again *****/
Plc_EditPlacesInternal ();
/***** Place destructor *****/
Plc_EditingPlaceDestructor ();
}
/*****************************************************************************/
/********************* Put a form to create a new place **********************/
/*****************************************************************************/
static void Plc_PutFormToCreatePlace (void)
{
const char *Names[Nam_NUM_SHRT_FULL_NAMES];
/***** Begin form to create *****/
Frm_BeginFormTable (ActNewPlc,NULL,NULL,NULL,"TBL_SCROLL");
/***** Write heading *****/
Plc_PutHeadPlaces ();
HTM_TR_Begin (NULL);
/***** Column to remove place, disabled here *****/
HTM_TD_Begin ("class=\"BM\"");
HTM_TD_End ();
/***** Place code *****/
HTM_TD_Begin ("class=\"CODE\"");
HTM_TD_End ();
/***** Place short name and full name *****/
Names[Nam_SHRT_NAME] = Plc_EditingPlc->ShrtName;
Names[Nam_FULL_NAME] = Plc_EditingPlc->FullName;
Nam_NewShortAndFullNames (Names);
/***** Number of centers *****/
HTM_TD_Unsigned (0);
HTM_TR_End ();
/***** End form to create *****/
Frm_EndFormTable (Btn_CREATE_BUTTON);
}
/*****************************************************************************/
/******************** Write header with fields of a place ********************/
/*****************************************************************************/
static void Plc_PutHeadPlaces (void)
{
extern const char *Txt_Code;
extern const char *Txt_Short_name;
extern const char *Txt_Full_name;
extern const char *Txt_HIERARCHY_PLURAL_Abc[Hie_NUM_LEVELS];
HTM_TR_Begin (NULL);
HTM_TH_Span (NULL ,HTM_HEAD_CENTER,1,1,"BT");
HTM_TH (Txt_Code ,HTM_HEAD_RIGHT );
HTM_TH (Txt_Short_name ,HTM_HEAD_LEFT );
HTM_TH (Txt_Full_name ,HTM_HEAD_LEFT );
HTM_TH (Txt_HIERARCHY_PLURAL_Abc[Hie_CTR],HTM_HEAD_RIGHT );
HTM_TR_End ();
}
/*****************************************************************************/
/******************* Receive form to create a new place **********************/
/*****************************************************************************/
void Plc_ReceiveNewPlace (void)
{
extern const char *Txt_Created_new_place_X;
char *Names[Nam_NUM_SHRT_FULL_NAMES];
/***** Place constructor *****/
Plc_EditingPlaceConstructor ();
/***** Get parameters from form *****/
/* Get place short name and full name */
Names[Nam_SHRT_NAME] = Plc_EditingPlc->ShrtName;
Names[Nam_FULL_NAME] = Plc_EditingPlc->FullName;
Nam_GetParsShrtAndFullName (Names);
if (Plc_EditingPlc->ShrtName[0] &&
Plc_EditingPlc->FullName[0]) // If there's a place name
{
/***** If name of place was not in database... *****/
if (!Nam_CheckIfNameExists (Plc_DB_CheckIfPlaceNameExists,
(const char **) Names,
-1L,
Gbl.Hierarchy.Node[Hie_INS].HieCod,
0)) // Unused
{
Plc_DB_CreatePlace (Plc_EditingPlc);
Ale_CreateAlert (Ale_SUCCESS,NULL,Txt_Created_new_place_X,
Names[Nam_FULL_NAME]);
}
}
else // If there is not a place name
Ale_CreateAlertYouMustSpecifyShrtNameAndFullName ();
}
/*****************************************************************************/
/************************* Place constructor/destructor **********************/
/*****************************************************************************/
static void Plc_EditingPlaceConstructor (void)
{
/***** Pointer must be NULL *****/
if (Plc_EditingPlc != NULL)
Err_WrongPlaceExit ();
/***** Allocate memory for place *****/
if ((Plc_EditingPlc = malloc (sizeof (*Plc_EditingPlc))) == NULL)
Err_NotEnoughMemoryExit ();
/***** Reset place *****/
Plc_EditingPlc->PlcCod = -1L;
Plc_EditingPlc->InsCod = -1L;
Plc_EditingPlc->ShrtName[0] = '\0';
Plc_EditingPlc->FullName[0] = '\0';
Plc_EditingPlc->NumCtrs = 0;
}
static void Plc_EditingPlaceDestructor (void)
{
/***** Free memory used for place *****/
if (Plc_EditingPlc != NULL)
{
free (Plc_EditingPlc);
Plc_EditingPlc = NULL;
}
}