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| version 1.17, 2002/03/27 15:30:34 | version 1.28.2.5.2.1, 2003/03/18 15:14:15 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b VOID parser class. | Parser: @b VOID parser class. |
| Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| */ | */ |
| static const char* IDENT_VOID_C="$Date$"; | |
| #include "classes.h" | #include "classes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vint.h" | #include "pa_vint.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| #include "pa_vvoid.h" | #include "pa_vvoid.h" |
| #include "pa_sql_connection.h" | #include "pa_sql_connection.h" |
| // defines | |
| #define VOID_CLASS_NAME "void" | |
| // class | // class |
| class MVoid : public Methoded { | class MVoid: public Methoded { |
| public: | public: |
| MVoid(Pool& pool); | MVoid(); |
| public: // Methoded | public: // Methoded |
| bool used_directly() { return true; } | bool used_directly() { return true; } |
| }; | }; |
| // global variable | |
| DECLARE_CLASS_VAR(void, new MVoid, 0); | |
| // methods | // methods |
| static void _int(Request& r, const String&, MethodParams *params) { | static void _length(Request& r, const String& /*method_name*/, MethodParams* /*params*/) { |
| Pool& pool=r.pool(); | // always zero |
| VVoid *vvoid=static_cast<VVoid *>(r.self); | r.write_no_lang(ValuePtr(new VInt(0))); |
| r.write_no_lang(*new(pool) VInt(pool, | } |
| params->size()==0?vvoid->as_int():params->as_int(0, "default must be int", r))); | |
| static void _pos(Request& r, const String& method_name, MethodParams* params) { | |
| // just checking for consistency | |
| params->as_no_junction(0, "substr must not be code"); | |
| // never found | |
| r.write_no_lang(ValuePtr(new VInt(-1))); | |
| } | |
| static void _int(Request& r, const String& /*method_name*/, MethodParams* params) { | |
| VVoid& vvoid=*static_cast<VVoid *>(r.get_self().get()); | |
| r.write_no_lang(ValuePtr(new VInt( | |
| params->count()==0?vvoid.as_int():params->as_int(0, "default must be int", r)))); | |
| } | } |
| static void _double(Request& r, const String&, MethodParams *params) { | static void _double(Request& r, const String& /*method_name*/, MethodParams* params) { |
| Pool& pool=r.pool(); | VVoid& vvoid=*static_cast<VVoid *>(r.get_self().get()); |
| VVoid *vvoid=static_cast<VVoid *>(r.self); | r.write_no_lang(ValuePtr(new VDouble( |
| r.write_no_lang(*new(pool) VDouble(pool, | params->count()==0?vvoid.as_double():params->as_double(0, "default must be double", r)))); |
| params->size()==0?vvoid->as_double():params->as_double(0, "default must be double", r))); | |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| class Void_sql_event_handlers : public SQL_Driver_query_event_handlers { | class Void_sql_event_handlers: public SQL_Driver_query_event_handlers { |
| const String& statement_string; | |
| public: | public: |
| Void_sql_event_handlers(Pool& apool, const String& astatement_string) : | Void_sql_event_handlers(const String& astatement_string): statement_string(astatement_string) {} |
| pool(apool), statement_string(astatement_string) { | bool add_column(SQL_Error& /*error*/, void *ptr, size_t size) { /* ignore */ return false; } |
| } | bool before_rows(SQL_Error& error) { |
| void add_column(void *ptr, size_t size) { /* ignore */ } | |
| void before_rows() { | |
| // there are some result rows, which is wrong | // there are some result rows, which is wrong |
| throw Exception("parser.runtime", | error=SQL_Error("parser.runtime", |
| &statement_string, | /*statement_string,*/ |
| "must return nothing"); | "must return nothing"); |
| return true; | |
| } | } |
| void add_row() { /* never */ } | bool add_row(SQL_Error& /*error*/) { /* never */ return false; } |
| void add_row_cell(void *ptr, size_t size) { /* never */ } | bool add_row_cell(SQL_Error& /*error*/, void *ptr, size_t size) { /* never */ return false; } |
| private: | |
| Pool& pool; | |
| const String& statement_string; | |
| }; | }; |
| #endif | #endif |
| static void _sql(Request& r, const String& method_name, MethodParams *params) { | static void _sql(Request& r, const String& method_name, MethodParams* params) { |
| Pool& pool=r.pool(); | ValuePtr statement=params->as_junction(0, "statement must be code"); |
| Value& statement=params->as_junction(0, "statement must be code"); | |
| Temp_lang temp_lang(r, String::UL_SQL); | Temp_lang temp_lang(r, String::UL_SQL); |
| const String& statement_string=r.process(statement).as_string(); | const String& statement_string=r.process_to_string(statement); |
| const char *statement_cstr= | const char* statement_cstr= |
| statement_string.cstr(String::UL_UNSPECIFIED, r.connection(&method_name)); | statement_string->cstr(String::UL_UNSPECIFIED, r.connection(method_name)); |
| Void_sql_event_handlers handlers(pool, statement_string); | Void_sql_event_handlers handlers(statement_string); |
| try { | r.connection(method_name)->query( |
| r.connection(&method_name)->query( | statement_cstr, 0, 0, |
| statement_cstr, 0, 0, | handlers, |
| handlers); | statement_string); |
| } catch(const Exception& e) { | |
| // more specific source [were url] | |
| throw Exception("sql.execute", | |
| &statement_string, | |
| "%s", e.comment()); | |
| } | |
| } | } |
| // constructor | // constructor |
| MVoid::MVoid(Pool& apool) : Methoded(apool) { | MVoid::MVoid(): Methoded("void") { |
| set_name(*NEW String(pool(), VOID_CLASS_NAME)); | // ^void.length[] |
| add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0); | |
| // ^void.pos[substr] | |
| add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 1); | |
| // ^void.int[] | // ^void.int[] |
| // ^void.int(default) | // ^void.int(default) |
| Line 103 MVoid::MVoid(Pool& apool) : Methoded(apo | Line 107 MVoid::MVoid(Pool& apool) : Methoded(apo |
| // ^sql[query] | // ^sql[query] |
| add_native_method("sql", Method::CT_STATIC, _sql, 1, 1); | add_native_method("sql", Method::CT_STATIC, _sql, 1, 1); |
| } | } |
| // global variable | |
| Methoded *void_class; | |
| // creator | |
| Methoded *MVoid_create(Pool& pool) { | |
| return void_class=new(pool) MVoid(pool); | |
| } |