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-#include <stdlib.h>
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-#include <string.h>
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-#include <stdio.h>
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-#include <unistd.h>
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-#include <fcntl.h>
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-#include <sys/time.h>
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-#include <sys/types.h>
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-#include <tcl.h>
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-#include <tk.h>
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-#include <locale.h>
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-#include <grass/gis.h>
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-#include <grass/dbmi.h>
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-#include <grass/form.h>
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-
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-/* Structure to store column names and values */
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-typedef struct
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-{
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- char *name;
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- int ctype;
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- char *value;
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-} COLUMN;
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-
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-static char *Drvname, *Dbname, *Tblname, *Key;
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-
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-static COLUMN *Columns = NULL;
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-static int allocatedRows = 0; /* allocated space */
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-static int nRows = 0;
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-
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-/* Start new sql update */
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-int reset_values(ClientData cdata, Tcl_Interp * interp, int argc,
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- char *argv[])
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-{
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- nRows = 0;
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- Drvname = NULL;
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- Dbname = NULL;
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- Tblname = NULL;
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- Key = NULL;
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-
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- return TCL_OK;
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-}
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-
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-int set_value(ClientData cdata, Tcl_Interp * interp, int argc, char *argv[])
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-{
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- G_debug(2, "set_value(): %s %s", argv[1], argv[2]);
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-
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- if (strcmp(argv[1], F_DRIVER_FNAME) == 0) {
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- Drvname = G_store(argv[2]);
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- }
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- else if (strcmp(argv[1], F_DATABASE_FNAME) == 0) {
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- Dbname = G_store(argv[2]);
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- }
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- else if (strcmp(argv[1], F_TABLE_FNAME) == 0) {
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- Tblname = G_store(argv[2]);
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- }
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- else if (strcmp(argv[1], F_KEY_FNAME) == 0) {
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- Key = G_store(argv[2]);
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- }
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- else {
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- if (nRows == allocatedRows) {
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- allocatedRows += 100;
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- Columns =
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- (COLUMN *) G_realloc(Columns,
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- (allocatedRows) * sizeof(COLUMN));
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- }
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- Columns[nRows].name = G_store(argv[1]);
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- Columns[nRows].value = G_store(argv[2]);
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- nRows++;
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- }
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-
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- return TCL_OK;
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-}
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-
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-/* Update table, use the data previously stored by set_value() */
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-int submit(ClientData cdata, Tcl_Interp * interp, int argc, char *argv[])
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-{
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- int i, first, ncols, found, col, sqltype, keyval = 0, ret;
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- char buf[2001];
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- dbString sql, table_name, strval;
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- dbDriver *driver;
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- dbHandle handle;
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- dbTable *table;
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- dbColumn *column;
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-
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- G_debug(2, "submit()");
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-
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- db_init_string(&sql);
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- db_init_string(&table_name);
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- db_init_string(&strval);
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-
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- /* Check if all internal values are set */
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- if (Drvname == NULL || Dbname == NULL || Tblname == NULL || Key == NULL) {
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- G_warning("db connection was not set by form\n");
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- sprintf(buf, "set submit_msg \"db connection was not set by form.\"");
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- Tcl_Eval(interp, buf);
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- Tcl_Eval(interp, "set submit_result 0");
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- return TCL_OK;
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- }
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-
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- /* Get column types */
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- G_debug(2, "Open driver");
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- driver = db_start_driver(Drvname);
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- if (driver == NULL) {
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- G_warning("Cannot open driver\n");
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- sprintf(buf, "set submit_msg \"Cannot open driver '%s'\"", Drvname);
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- Tcl_Eval(interp, buf);
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- Tcl_Eval(interp, "set submit_result 0");
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- return TCL_OK;
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- }
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- G_debug(2, "Driver opened");
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-
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- db_init_handle(&handle);
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- db_set_handle(&handle, Dbname, NULL);
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- G_debug(2, "Open database");
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- if (db_open_database(driver, &handle) != DB_OK) {
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- G_warning("Cannot open database\n");
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- db_shutdown_driver(driver);
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- sprintf(buf,
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- "set submit_msg \"Cannot open database '%s' by driver '%s'\"",
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- Dbname, Drvname);
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- Tcl_Eval(interp, buf);
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- Tcl_Eval(interp, "set submit_result 0");
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- return TCL_OK;
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- }
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- G_debug(2, "Database opened");
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-
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- db_set_string(&table_name, Tblname);
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- if (db_describe_table(driver, &table_name, &table) != DB_OK) {
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- G_warning("Cannot describe table\n");
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- db_shutdown_driver(driver);
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- db_close_database(driver);
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- sprintf(buf, "set submit_msg \"Cannot describe table '%s'\"",
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- Tblname);
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- Tcl_Eval(interp, buf);
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- Tcl_Eval(interp, "set submit_result 0");
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- return TCL_OK;
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- }
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- ncols = db_get_table_number_of_columns(table);
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-
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- /* For each column get ctype */
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- for (i = 0; i < nRows; i++) {
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- found = 0;
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- for (col = 0; col < ncols; col++) {
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- /* get keyval */
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- if (G_strcasecmp(Columns[i].name, Key) == 0) {
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- keyval = atoi(Columns[i].value);
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- }
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- column = db_get_table_column(table, col);
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- if (G_strcasecmp(db_get_column_name(column), Columns[i].name) ==
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- 0) {
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- sqltype = db_get_column_sqltype(column);
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- Columns[i].ctype = db_sqltype_to_Ctype(sqltype);
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- found = 1;
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- break;
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- }
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- }
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- if (!found && (G_strcasecmp(Columns[i].name, F_ENCODING) != 0)) {
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- G_warning("Cannot find column type");
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- db_close_database(driver);
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- db_shutdown_driver(driver);
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- sprintf(buf, "set submit_msg \"Cannot find column type\"");
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- Tcl_Eval(interp, buf);
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- Tcl_Eval(interp, "set submit_result 0");
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- return TCL_OK;
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- }
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- }
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-
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- /* Construct update statement */
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- sprintf(buf, "update %s set ", Tblname);
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- db_set_string(&sql, buf);
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-
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- first = 1;
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- for (i = 0; i < nRows; i++) {
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- G_debug(3, "Index = %d of %d Name = %s, Key = %s", i, nRows,
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- Columns[i].name, Key);
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- if (G_strcasecmp(Columns[i].name, Key) == 0)
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- continue;
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-
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- if (G_strcasecmp(Columns[i].name, F_ENCODING) == 0) {
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-
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- G_debug(3, "GRASS_DB_ENCODING env-var is '%s', col val is '%s'",
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- G__getenv("GRASS_DB_ENCODING"), Columns[i].value);
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-
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- if ((strlen(Columns[i].value) == 0) ||
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- G_strcasecmp(Columns[i].value,
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- G__getenv("GRASS_DB_ENCODING")) == 0)
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- continue;
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- else {
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- G_setenv("GRASS_DB_ENCODING", Columns[i].value);
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- G_debug(3, "Set env var GRASS_DB_ENCODING to '%s'",
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- Columns[i].value);
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- if (Tcl_SetSystemEncoding(interp, Columns[i].value) ==
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- TCL_ERROR) {
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- G_warning
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- ("Could not set Tcl system encoding to '%s' (%s)",
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- Columns[i].value, Tcl_GetStringResult(interp));
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- }
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- }
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- continue;
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- }
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-
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- if (!first) {
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- db_append_string(&sql, ", ");
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- }
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- if (strlen(Columns[i].value) == 0) {
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- sprintf(buf, "%s = null", Columns[i].name);
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- }
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- else {
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- if (Columns[i].ctype == DB_C_TYPE_INT ||
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- Columns[i].ctype == DB_C_TYPE_DOUBLE) {
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- sprintf(buf, "%s = %s", Columns[i].name, Columns[i].value);
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- }
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- else {
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- memset(buf, '\0', strlen(buf));
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- ret = Tcl_UtfToExternal(interp,
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- Tcl_GetEncoding(interp,
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- G__getenv
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- ("GRASS_DB_ENCODING")),
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- Columns[i].value,
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- strlen(Columns[i].value), 0, NULL,
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- buf, 2000, NULL, NULL, NULL);
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-
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- if (ret != TCL_OK) {
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- G_warning("Could not convert UTF to external.");
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- db_set_string(&strval, Columns[i].value);
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- }
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- else {
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- db_set_string(&strval, buf);
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- }
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-
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- db_double_quote_string(&strval);
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- sprintf(buf, "%s = '%s'", Columns[i].name,
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- db_get_string(&strval));
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- }
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- }
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- db_append_string(&sql, buf);
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- first = 0;
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- }
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-
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- sprintf(buf, " where %s = %d", Key, keyval);
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- db_append_string(&sql, buf);
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-
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- G_debug(2, "SQL: %s", db_get_string(&sql));
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-
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- /* Update table */
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- ret = db_execute_immediate(driver, &sql);
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-
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- db_close_database(driver);
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- db_shutdown_driver(driver);
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-
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- if (ret != DB_OK) {
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- G_warning("Cannot update table");
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- Tcl_VarEval(interp, "set submit_msg \"Cannot update table:\n",
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- db_get_error_msg(), "\"", NULL);
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- Tcl_Eval(interp, "set submit_result 0");
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- }
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- else {
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- Tcl_Eval(interp, "set submit_msg \"Record successfully updated\"");
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- Tcl_Eval(interp, "set submit_result 1");
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- }
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-
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- return TCL_OK;
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-}
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-
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-/*
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- * Form
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- */
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-int Tcl_AppInit(Tcl_Interp * interp)
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-{
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- if (Tcl_Init(interp) == TCL_ERROR)
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- return TCL_ERROR;
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-
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- if (Tk_Init(interp) == TCL_ERROR)
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- return TCL_ERROR;
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-
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- Tcl_StaticPackage(interp, "Tk", Tk_Init, Tk_SafeInit);
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-
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- /*
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- * Call Tcl_CreateCommand for application-specific commands, if
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- * they weren't already created by the init procedures called above.
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- */
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-
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- Tcl_CreateCommand(interp, "submit", (Tcl_CmdProc *) submit,
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- (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL);
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- Tcl_CreateCommand(interp, "set_value",
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- (Tcl_CmdProc *) set_value,
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- (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL);
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- Tcl_CreateCommand(interp, "reset_values",
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- (Tcl_CmdProc *) reset_values,
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- (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL);
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- /*
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- * Specify a user-specific startup file to invoke if the application
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- * is run interactively. Typically the startup file is "~/.apprc"
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- * where "app" is the name of the application. If this line is deleted
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- * then no user-specific startup file will be run under any conditions.
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- */
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-
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- Tcl_SetVar(interp, "tcl_rcFileName", "~/.grassformrc", TCL_GLOBAL_ONLY);
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- return TCL_OK;
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-}
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-
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-int main(int argc, char *argv[])
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-{
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- G_gisinit("form");
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- G_debug(2, "Form: main()");
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-
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- Tk_Main(argc, argv, Tcl_AppInit);
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- return 0;
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-}
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