--- parser3/src/classes/string.C	2002/09/18 08:52:49	1.120
+++ parser3/src/classes/string.C	2002/12/09 12:19:16	1.124
@@ -5,7 +5,7 @@
 	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
-static const char* IDENT_STRING_C="$Date: 2002/09/18 08:52:49 $";
+static const char* IDENT_STRING_C="$Date: 2002/12/09 12:19:16 $";
 
 #include "classes.h"
 #include "pa_request.h"
@@ -37,11 +37,15 @@ static void _length(Request& r, const St
 
 static void _int(Request& r, const String& method_name, MethodParams *params) {
 	Pool& pool=r.pool();
+	const String *self_string=r.get_self()->get_string();
 	int converted;
-	Value *default_code=params->size()>0?
-		default_code=&params->as_junction(0, "default must be int"):0; // (default)
+	Value *default_code=params->size()>0?&params->as_junction(0, "default must be int"):0; // (default)
 	try {
-		converted=r.get_self()->as_int();
+		if(!self_string || self_string->is_empty())
+			throw Exception("parser.runtime",
+				&method_name,
+				"parameter is empty string, error converting");
+		converted=self_string->as_int();
 	} catch(...) { // convert problem
 		if(!default_code) // we have a problem when no default
 			/*re*/throw;
@@ -53,11 +57,15 @@ static void _int(Request& r, const Strin
 
 static void _double(Request& r, const String& method_name, MethodParams *params) {
 	Pool& pool=r.pool();
+	const String *self_string=r.get_self()->get_string();
 	double converted;
-	Value *default_code=params->size()>0?
-		default_code=&params->as_junction(0, "default must be double"):0; // (default)
+	Value *default_code=params->size()>0?&params->as_junction(0, "default must be double"):0; // (default)
 	try {
-		converted=r.get_self()->as_double();
+		if(!self_string || self_string->is_empty())
+			throw Exception("parser.runtime",
+				&method_name,
+				"parameter is empty string, error converting");
+		converted=self_string->as_double();
 	} catch(...) { // convert problem
 		if(!default_code) // we have a problem when no default
 			/*re*/throw;  
@@ -358,7 +366,7 @@ static void _lower(Request& r, const Str
 class String_sql_event_handlers : public SQL_Driver_query_event_handlers {
 public:
 	String_sql_event_handlers(Pool& apool, 
-		const String& astatement_string, const char *astatement_cstr) :
+		const String& astatement_string, const char *astatement_cstr):
 		pool(apool), 
 		statement_string(astatement_string),
 		statement_cstr(astatement_cstr),
@@ -366,23 +374,34 @@ public:
 		result=new(pool) String(pool);
 	}
 
-	void add_column(void *ptr, size_t size) {
-		if(got_column)
-			throw Exception("parser.runtime",
+	bool add_column(SQL_Error& error, void *ptr, size_t size) {
+		if(got_column) {
+			error=SQL_Error("parser.runtime",
 				&statement_string,
 				"result must contain exactly one column");
+			return true;
+		}
 		got_column=true;
+		return false;
 	}
-	void before_rows() { /* ignore */ }
-	void add_row() { /* ignore */ }
-	void add_row_cell(void *ptr, size_t size) {
-		if(got_cell)
-			throw Exception("parser.runtime",
+	bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
+	bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
+	bool add_row_cell(SQL_Error& error, void *ptr, size_t size) {
+		if(got_cell) {
+			error=SQL_Error("parser.runtime",
 				&statement_string,
 				"result must not contain more then one row");
-		got_cell=true;
+			return true;
+		}
 
-		result->APPEND_TAINTED((const char *)ptr, size, statement_cstr, 0);
+		try {
+			got_cell=true;
+			result->APPEND_TAINTED((const char *)ptr, size, statement_cstr, 0);
+			return false;
+		} catch(...) {
+			error=SQL_Error("exception occured in String_sql_event_handlers::add_row_cell");
+			return true;
+		}
 	}
 
 private:
@@ -494,7 +513,7 @@ static void _save(Request& r, const Stri
 	}		
 
 	// write
-	const char *buf=src.cstr(String::UL_UNSPECIFIED);
+	const char *buf=src.cstr(String::UL_UNSPECIFIED, r.connection(0/*no error if none*/));
 	file_write(r.absolute(file_name), 
 		buf, strlen(buf), true, do_append);
 }