Annotation of parser3/src/classes/table.C, revision 1.118
1.20 paf 1: /** @file
1.47 paf 2: Parser: @b table parser class.
1.20 paf 3:
1.1 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.115 parser 5: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.20 paf 6:
1.118 ! parser 7: $Id: table.C,v 1.117 2001/10/02 13:32:38 parser Exp $
1.1 paf 8: */
9:
1.105 parser 10: #include "classes.h"
1.24 paf 11: #include "pa_config_includes.h"
1.16 paf 12: #include "pa_common.h"
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vtable.h"
1.6 paf 15: #include "pa_vint.h"
1.51 paf 16: #include "pa_sql_connection.h"
1.72 paf 17: #include "pa_vbool.h"
1.1 paf 18:
1.66 paf 19: // defines
1.1 paf 20:
1.66 paf 21: #define TABLE_CLASS_NAME "table"
22:
23: // class
24:
25: class MTable : public Methoded {
26: public: // VStateless_class
27: Value *create_new_value(Pool& pool) { return new(pool) VTable(pool); }
28:
29: public:
30: MTable(Pool& pool);
1.70 paf 31:
32: public: // Methoded
1.66 paf 33: bool used_directly() { return true; }
34: };
1.1 paf 35:
36: // methods
1.66 paf 37:
1.61 paf 38: static void _set(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 39: Pool& pool=r.pool();
40: // data is last parameter
1.90 parser 41: Value& vdata=params->as_junction(params->size()-1, "body must be code");
1.44 paf 42:
1.45 paf 43: Temp_lang temp_lang(r, String::UL_PASS_APPENDED);
1.61 paf 44: const String& data=r.process(vdata).as_string();
1.44 paf 45:
46: size_t pos_after=0;
47: // parse columns
48: Array *columns;
49: if(params->size()==2) {
50: columns=0;
1.21 paf 51: } else {
1.44 paf 52: columns=new(pool) Array(pool);
53:
54: Array head(pool);
55: data.split(head, &pos_after, "\n", 1, String::UL_CLEAN, 1);
56: if(head.size())
57: head.get_string(0)->split(*columns, 0, "\t", 1, String::UL_CLEAN);
58: }
59:
60: Table& table=*new(pool) Table(pool, &method_name, columns);
61: // parse cells
62: Array rows(pool);
63: data.split(rows, &pos_after, "\n", 1, String::UL_CLEAN);
1.98 parser 64: Array_iter i(rows);
65: while(i.has_next()) {
1.44 paf 66: Array& row=*new(pool) Array(pool);
1.98 parser 67: const String& string=*i.next_string();
1.118 ! parser 68: // remove comment lines
! 69: if(!string.size())
1.44 paf 70: continue;
71:
72: string.split(row, 0, "\t", 1, String::UL_CLEAN);
73: table+=&row;
1.17 paf 74: }
1.1 paf 75:
1.44 paf 76: // replace any previous table value
77: static_cast<VTable *>(r.self)->set_table(table);
78: }
79:
1.61 paf 80: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.44 paf 81: Pool& pool=r.pool();
82: // filename is last parameter
1.113 parser 83: Value& vfilename=params->as_no_junction(params->size()-1,
1.61 paf 84: "file name must not be code");
1.44 paf 85:
86: // loading text
1.113 parser 87: char *data=file_read_text(pool, r.absolute(vfilename.as_string()));
1.44 paf 88:
1.1 paf 89: // parse columns
90: Array *columns;
91: #ifndef NO_STRING_ORIGIN
92: const Origin& origin=method_name.origin();
1.2 paf 93: const char *file=origin.file;
1.1 paf 94: uint line=origin.line;
95: #endif
96: if(params->size()==2) {
97: columns=0;
98: } else {
99: columns=new(pool) Array(pool);
100:
101: if(char *row_chars=getrow(&data))
102: do {
103: String *name=new(pool) String(pool);
1.45 paf 104: name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++);
1.1 paf 105: *columns+=name;
106: } while(row_chars);
107: }
108:
109: // parse cells
1.27 paf 110: Table& table=*new(pool) Table(pool, &method_name, columns);
1.1 paf 111: char *row_chars;
112: while(row_chars=getrow(&data)) {
1.118 ! parser 113: // remove empty&comment lines
! 114: if(!*row_chars || *row_chars == '#')
1.28 paf 115: continue;
1.1 paf 116: Array *row=new(pool) Array(pool);
117: while(char *cell_chars=lsplit(&row_chars, '\t')) {
118: String *cell=new(pool) String(pool);
1.44 paf 119: cell->APPEND_TAINTED(cell_chars, 0, file, line);
1.1 paf 120: *row+=cell;
121: }
1.107 parser 122: #ifndef NO_STRING_ORIGIN
1.1 paf 123: line++;
1.107 parser 124: #endif
1.1 paf 125: table+=row;
126: };
127:
128: // replace any previous table value
1.18 paf 129: static_cast<VTable *>(r.self)->set_table(table);
1.1 paf 130: }
1.2 paf 131:
1.91 parser 132: static Table *fill_month_days(Request& r,
133: const String& method_name, MethodParams *params, bool rus){
134: Pool& pool=r.pool();
135: Table *result=new(pool) Table(pool, &method_name, 0/*&columns*/);
136:
137: int year=params->as_int(1, r);
138: int month=max(1, min(params->as_int(2, r), 12)) -1;
139:
140: tm tmIn={0, 0, 0, 1, month, year-1900};
141: time_t t=mktime(&tmIn);
142: if(t<0)
143: PTHROW(0, 0,
144: &method_name,
145: "invalid date");
146: tm *tmOut=localtime(&t);
147:
148: int weekDay1=tmOut->tm_wday;
149: if(rus)
150: weekDay1=weekDay1?weekDay1-1:6; //sunday last
151: int monthDays=getMonthDays(year, month);
152:
153: for(int _day=1-weekDay1; _day<=monthDays;) {
154: Array& row=*new(pool) Array(pool, 7);
155: for(int wday=0; wday<7; wday++, _day++) {
1.93 parser 156: String *cell=new(pool) String(pool);
1.91 parser 157: if(_day>=1 && _day<=monthDays) {
1.106 parser 158: char *buf=(char *)pool.malloc(2+1);
1.93 parser 159: cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day),
160: method_name.origin().file, method_name.origin().line);
161: }
1.91 parser 162: row+=cell;
163: }
164: *result+=&row;
165: }
166:
167: return result;
168: }
169:
170: static Table *fill_week_days(Request& r,
171: const String& method_name, MethodParams *params, bool rus){
172: Pool& pool=r.pool();
173: Array& columns=*new(pool) Array(pool, 4);
174: columns+=new(pool) String(pool, "year");
175: columns+=new(pool) String(pool, "month");
176: columns+=new(pool) String(pool, "day");
177: columns+=new(pool) String(pool, "weekday");
178: Table *result=new(pool) Table(pool, &method_name, &columns);
179:
180: int year=params->as_int(1, r);
181: int month=max(1, min(params->as_int(2, r), 12)) -1;
182: int day=params->as_int(3, r);
183:
184: tm tmIn={0, 0, 18, day, month, year-1900};
185: time_t t=mktime(&tmIn);
186: if(t<0)
187: PTHROW(0, 0,
188: &method_name,
189: "invalid date");
190: tm *tmOut=localtime(&t);
191:
192: int baseWeekDay=tmOut->tm_wday;
193: if(rus)
194: baseWeekDay=baseWeekDay?baseWeekDay-1:6; //sunday last
195:
196: t-=baseWeekDay*SECS_PER_DAY;
197:
198: for(int curWeekDay=0; curWeekDay<7; curWeekDay++, t+=SECS_PER_DAY) {
199: tm *tmOut=localtime(&t);
200: Array& row=*new(pool) Array(pool, 4);
1.93 parser 201: #define WDFILL(size, value) { \
1.106 parser 202: char *buf=(char *)pool.malloc(size+1); \
1.93 parser 203: String *cell=new(pool) String(pool); \
204: cell->APPEND_CLEAN(buf, sprintf(buf, "%0"#size"d", value), \
205: method_name.origin().file, \
206: method_name.origin().line); \
207: row+=cell; \
208: }
209: WDFILL(4, 1900+tmOut->tm_year);
210: WDFILL(2, 1+tmOut->tm_mon);
211: WDFILL(2, tmOut->tm_mday);
212: WDFILL(2, tmOut->tm_wday);
1.91 parser 213: *result+=&row;
214: }
215:
216: return result;
217: }
218:
219: static void _calendar(Request& r, const String& method_name, MethodParams *params) {
220: Pool& pool=r.pool();
221:
1.92 parser 222: const String& what=params->as_string(0, "format must be strig");
1.91 parser 223: bool rus=false;
1.92 parser 224: if(what=="rus")
1.91 parser 225: rus=true;
1.92 parser 226: else if(what=="eng")
1.91 parser 227: rus=false;
228: else
229: PTHROW(0, 0,
230: &what,
231: "must be rus|eng");
232:
233: Table *result=0;
234: if(params->size()==1+2)
235: result=fill_month_days(r, method_name, params, rus);
236: else // 1+3
237: result=fill_week_days(r, method_name, params, rus);
238:
239: // replace any previous table value
240: static_cast<VTable *>(r.self)->set_table(*result);
241: }
242:
243:
244:
245:
1.61 paf 246: static void _save(Request& r, const String& method_name, MethodParams *params) {
1.22 paf 247: Pool& pool=r.pool();
1.90 parser 248: Value& vtable_name=params->as_no_junction(params->size()-1,
1.61 paf 249: "file name must not be code");
1.22 paf 250:
1.31 paf 251: Table& table=static_cast<VTable *>(r.self)->table();
252:
253: String sdata(pool);
254: if(params->size()==1) { // not nameless=named output
255: // write out names line
256: if(table.columns()) { // named table
1.98 parser 257: Array_iter i(*table.columns());
258: while(i.has_next()) {
259: sdata.append(*i.next_string(), //*static_cast<String *>(table.columns()->quick_get(column)),
260: String::UL_TABLE);
261: if(i.has_next())
1.31 paf 262: sdata.APPEND_CONST("\t");
263: }
264: } else { // nameless table
1.98 parser 265: if(int lsize=table.size()?static_cast<Array *>(table.get(0))->size():0)
1.31 paf 266: for(int column=0; column<lsize; column++) {
1.106 parser 267: char *cindex_tab=(char *)pool.malloc(MAX_NUMBER);
1.31 paf 268: snprintf(cindex_tab, MAX_NUMBER, "%d\t", column);
269: sdata.APPEND_CONST(cindex_tab);
270: }
271: else
272: sdata.APPEND_CONST("empty nameless table");
273: }
274: sdata.APPEND_CONST("\n");
275: }
276: // data lines
1.98 parser 277: Array_iter i(table);
278: while(i.has_next()) {
279: Array_iter c(*static_cast<Array *>(i.next()));
280: while(c.has_next()) {
281: sdata.append(*c.next_string(), //*static_cast<String *>(row->quick_get(column)),
282: String::UL_TABLE);
283: if(c.has_next())
1.31 paf 284: sdata.APPEND_CONST("\t");
285: }
286: sdata.APPEND_CONST("\n");
287: }
288:
289: // write
1.61 paf 290: file_write(pool, r.absolute(vtable_name.as_string()),
1.48 paf 291: sdata.cstr(), sdata.size(), true);
1.22 paf 292: }
293:
1.93 parser 294: static void _count(Request& r, const String& method_name, MethodParams *) {
1.6 paf 295: Pool& pool=r.pool();
1.18 paf 296: Value& value=*new(pool) VInt(pool, static_cast<VTable *>(r.self)->table().size());
1.93 parser 297: value.set_name(method_name);
1.15 paf 298: r.write_no_lang(value);
1.6 paf 299: }
300:
1.61 paf 301: static void _line(Request& r, const String& method_name, MethodParams *) {
1.6 paf 302: Pool& pool=r.pool();
1.37 paf 303: Value& value=*new(pool) VInt(pool, 1+static_cast<VTable *>(r.self)->table().current());
1.93 parser 304: value.set_name(method_name);
1.15 paf 305: r.write_no_lang(value);
1.6 paf 306: }
307:
1.61 paf 308: static void _offset(Request& r, const String& method_name, MethodParams *params) {
1.6 paf 309: Pool& pool=r.pool();
1.18 paf 310: Table& table=static_cast<VTable *>(r.self)->table();
1.74 paf 311: if(params->size()) {
1.90 parser 312: Value& offset_expr=params->as_junction(0, "offset must be expression");
1.80 parser 313: table.shift(r.process(offset_expr).as_int());
1.74 paf 314: } else {
1.37 paf 315: Value& value=*new(pool) VInt(pool, table.current());
1.93 parser 316: value.set_name(method_name);
1.15 paf 317: r.write_no_lang(value);
1.6 paf 318: }
319: }
320:
1.61 paf 321: static void _menu(Request& r, const String& method_name, MethodParams *params) {
1.90 parser 322: Value& body_code=params->as_junction(0, "body must be code");
1.7 paf 323:
1.61 paf 324: Value *delim_code=params->size()==2?¶ms->get(1):0;
1.7 paf 325:
1.64 paf 326: VTable& vtable=*static_cast<VTable *>(r.self);
327: Table& table=vtable.table();
1.7 paf 328: bool need_delim=false;
1.99 parser 329: int saved_current=table.current();
330: int size=table.size();
331: for(int row=0; row<size; row++) {
1.22 paf 332: table.set_current(row);
1.7 paf 333:
1.12 paf 334: Value& processed_body=r.process(body_code);
1.7 paf 335: if(delim_code) { // delimiter set?
336: const String *string=processed_body.get_string();
337: if(need_delim && string && string->size()) // need delim & iteration produced string?
338: r.write_pass_lang(r.process(*delim_code));
339: need_delim=true;
340: }
341: r.write_pass_lang(processed_body);
342: }
1.99 parser 343: table.set_current(saved_current);
1.7 paf 344: }
345:
1.110 parser 346: #ifndef DOXYGEN
1.74 paf 347: struct Row_info {
348: Table *table;
349: int key_field;
350: Array *value_fields;
351: Hash *hash;
352: };
1.110 parser 353: #endif
1.74 paf 354: static void table_row_to_hash(Array::Item *value, void *info) {
355: Array& row=*static_cast<Array *>(value);
356: Row_info& ri=*static_cast<Row_info *>(info);
357: Pool& pool=ri.table->pool();
358:
1.76 paf 359: if(ri.key_field<row.size()) {
360: VHash& result=*new(pool) VHash(pool);
361: Hash& hash=*result.get_hash();
1.74 paf 362: for(int i=0; i<ri.value_fields->size(); i++) {
363: int value_field=ri.value_fields->get_int(i);
364: if(value_field<row.size())
365: hash.put(
1.91 parser 366: *ri.table->columns()->get_string(value_field),
1.74 paf 367: new(pool) VString(*row.get_string(value_field)));
368: }
369:
1.77 paf 370: ri.hash->put(*row.get_string(ri.key_field), &result);
1.74 paf 371: }
372: }
373: static void _hash(Request& r, const String& method_name, MethodParams *params) {
1.97 parser 374: Pool& pool=r.pool();
1.74 paf 375: Table& table=static_cast<VTable *>(r.self)->table();
1.97 parser 376: Value& result=*new(pool) VHash(pool);
1.74 paf 377: if(const Array *columns=table.columns())
378: if(columns->size()>1) {
379:
1.90 parser 380: const String& key_field_name=params->as_no_junction(0,
1.74 paf 381: "key field name must not be code").as_string();
382: int key_field=table.column_name2index(key_field_name, true);
383: int value_fields_count=params->size()-1;
384: bool value_fields_by_params=value_fields_count!=0;
385: if(!value_fields_by_params)
386: value_fields_count=columns->size()-1; // all columns except key
387: Array value_fields(pool, value_fields_count);
388: if(value_fields_by_params) {
389: for(int i=1; i<params->size(); i++) {
1.91 parser 390: const String& value_field_name=params->as_no_junction(i,
1.74 paf 391: "value field name must not be code").as_string();
392: value_fields+=table.column_name2index(value_field_name, true);
393: }
394: } else { // by all columns except key
395: for(int i=0; i<columns->size(); i++)
396: if(i!=key_field)
397: value_fields+=i;
398: }
399:
400: // integers: key_field & value_fields
401: Row_info row_info={&table, key_field, &value_fields, result.get_hash()};
402: table.for_each(table_row_to_hash, &row_info);
403: }
1.97 parser 404: result.set_name(method_name);
405: r.write_no_lang(result);
1.74 paf 406: }
407:
1.110 parser 408: #ifndef DOXYGEN
1.78 paf 409: struct Table_seq_item {
1.34 paf 410: Array *row;
411: union {
412: char *c_str;
413: double d;
414: } value;
1.32 paf 415: };
1.110 parser 416: #endif
1.34 paf 417: static int sort_cmp_string(const void *a, const void *b) {
418: return strcmp(
1.78 paf 419: static_cast<const Table_seq_item *>(a)->value.c_str,
420: static_cast<const Table_seq_item *>(b)->value.c_str
1.34 paf 421: );
422: }
423: static int sort_cmp_double(const void *a, const void *b) {
1.78 paf 424: double va=static_cast<const Table_seq_item *>(a)->value.d;
425: double vb=static_cast<const Table_seq_item *>(b)->value.d;
1.34 paf 426: if(va<vb)
427: return -1;
428: else if(va>vb)
429: return +1;
430: else
431: return 0;
432: }
1.61 paf 433: static void _sort(Request& r, const String& method_name, MethodParams *params) {
1.101 parser 434: Pool& pool=r.pool();
1.90 parser 435: Value& key_maker=params->as_junction(0, "key-maker must be code");
1.61 paf 436:
1.102 parser 437: bool reverse=params->size()==2/*..[desc|asc|]*/?
1.103 parser 438: reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc":
1.104 parser 439: false; // default=asc
1.32 paf 440:
1.101 parser 441: Table& old_table=static_cast<VTable *>(r.self)->table();
442: Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns());
1.34 paf 443:
1.101 parser 444: Table_seq_item *seq=(Table_seq_item *)pool.malloc(sizeof(Table_seq_item)*old_table.size());
1.34 paf 445: int i;
446:
447: // calculate key values
448: bool key_values_are_strings=true;
1.101 parser 449: // save 'current'
450: int saved_current=old_table.current();
451: for(i=0; i<old_table.size(); i++) {
452: old_table.set_current(i);
1.32 paf 453: // calculate key value
1.101 parser 454: seq[i].row=(MethodParams *)old_table.get(i);
1.34 paf 455: Value& value=*r.process(key_maker).as_expr_result(true/*return string as-is*/);
456: if(i==0) // determining key values type by first one
457: key_values_are_strings=value.is_string();
458:
459: if(key_values_are_strings)
460: seq[i].value.c_str=value.as_string().cstr();
461: else
462: seq[i].value.d=value.as_double();
1.32 paf 463: }
1.101 parser 464: // restore 'current'
465: old_table.set_current(saved_current);
1.32 paf 466: // sort keys
1.101 parser 467: _qsort(seq, old_table.size(), sizeof(Table_seq_item),
1.34 paf 468: key_values_are_strings?sort_cmp_string:sort_cmp_double);
1.32 paf 469:
1.34 paf 470: // reorder table as they require in 'seq'
1.101 parser 471: for(i=0; i<old_table.size(); i++)
472: new_table+=seq[reverse?old_table.size()-1-i:i].row;
1.32 paf 473:
1.116 parser 474: // replace any previous table value
475: static_cast<VTable *>(r.self)->set_table(new_table);
1.32 paf 476: }
477:
1.61 paf 478: static void _locate(Request& r, const String& method_name, MethodParams *params) {
1.72 paf 479: Pool& pool=r.pool();
480:
1.36 paf 481: VTable& vtable=*static_cast<VTable *>(r.self);
482: Table& table=vtable.table();
1.72 paf 483: Value& result=*new(pool) VBool(pool, table.locate(
1.91 parser 484: params->get(0).as_string(),
1.72 paf 485: params->get(1).as_string()));
486: result.set_name(method_name);
487: r.write_no_lang(result);
1.37 paf 488: }
489:
1.61 paf 490: static void _flip(Request& r, const String& method_name, MethodParams *params) {
1.39 paf 491: Pool& pool=r.pool();
492: VTable& vtable=*static_cast<VTable *>(r.self);
493:
494: Table& old_table=*vtable.get_table();
495: Table& new_table=*new(pool) Table(pool, &method_name, 0/*nameless*/);
496: if(old_table.size())
497: if(int old_cols=old_table.at(0).size())
498: for(int column=0; column<old_cols; column++) {
499: Array& new_row=*new(pool) Array(pool, old_table.size());
500: for(int i=0; i<old_table.size(); i++) {
501: const Array& old_row=old_table.at(i);
502: new_row+=column<old_row.size()?old_row.get(column):empty_string;
503: }
504: new_table+=&new_row;
505: }
506:
1.99 parser 507: r.write_no_lang(*new(pool) VTable(pool, &new_table));
1.39 paf 508: }
509:
1.61 paf 510: static void _append(Request& r, const String& method_name, MethodParams *params) {
1.41 paf 511: Pool& pool=r.pool();
512: // data is last parameter
1.61 paf 513: const String& string=
1.90 parser 514: r.process(params->as_junction(0, "body must be code")).as_string();
1.41 paf 515:
516: // parse cells
517: Array& row=*new(pool) Array(pool);
1.46 paf 518: string.split(row, 0, "\t", 1, String::UL_CLEAN);
1.41 paf 519:
1.66 paf 520: VTable& vtable=*static_cast<VTable *>(r.self);
521: vtable.table()+=&row;
1.41 paf 522: }
523:
1.61 paf 524: static void _join(Request& r, const String& method_name, MethodParams *params) {
1.42 paf 525: Pool& pool=r.pool();
526:
1.90 parser 527: Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table();
1.42 paf 528: if(!maybe_src)
1.91 parser 529: PTHROW(0, 0,
530: &method_name,
1.42 paf 531: "source is not a table");
532:
533: Table& src=*maybe_src;
534: Table& dest=static_cast<VTable *>(r.self)->table();
535: if(&src == &dest)
1.91 parser 536: PTHROW(0, 0,
537: &method_name,
1.42 paf 538: "source and destination are same table");
539:
540: if(const Array *dest_columns=dest.columns()) { // dest is named
541: int saved_src_current=src.current();
542: for(int src_row=0; src_row<src.size(); src_row++) {
543: src.set_current(src_row);
544: Array& dest_row=*new(pool) Array(pool);
545: for(int dest_column=0; dest_column<dest_columns->size(); dest_column++)
546: dest_row+=src.item(*dest_columns->get_string(dest_column));
547: dest+=&dest_row;
548: }
549: src.set_current(saved_src_current);
550: } else { // dest is nameless
551: for(int src_row=0; src_row<src.size(); src_row++)
552: dest+=&src.at(src_row);
553: }
554: }
555:
1.94 parser 556: #ifndef DOXYGEN
557: class Table_sql_event_handlers : public SQL_Driver_query_event_handlers {
558: public:
559: Table_sql_event_handlers(Pool& apool, const String& amethod_name,
560: const String& astatement_string, const char *astatement_cstr) :
561: pool(apool),
562: method_name(amethod_name),
563: statement_string(astatement_string),
564: statement_cstr(astatement_cstr),
565: columns(*new(pool) Array(pool)),
566: row(0), row_index(0),
567: table(0)
568: {
569: }
570:
571: void add_column(void *ptr, size_t size) {
572: String *column=new(pool) String(pool);
573: column->APPEND_TAINTED(
574: (const char *)ptr, size,
575: statement_cstr, 0);
576: columns+=column;
577: }
578: void before_rows() {
579: table=new(pool) Table(pool, &method_name, &columns);
580: }
581: void add_row() {
582: (*table)+=(row=new(pool) Array(pool));
583: }
584: void add_row_cell(void *ptr, size_t size) {
585: String *cell=new(pool) String(pool);
586: if(size)
587: cell->APPEND_TAINTED(
588: (const char *)ptr, size,
589: statement_cstr, row_index++);
590: (*row)+=cell;
591: }
592:
593: private:
594: Pool& pool;
595: const String& method_name;
596: const String& statement_string; const char *statement_cstr;
597: Array& columns;
598: Array *row;
599: uint row_index;
600: public:
601: Table *table;
602: };
603: #endif
1.61 paf 604: static void _sql(Request& r, const String& method_name, MethodParams *params) {
1.49 paf 605: Pool& pool=r.pool();
606:
607: if(!r.connection)
1.91 parser 608: PTHROW(0, 0,
609: &method_name,
1.49 paf 610: "without connect");
611:
1.90 parser 612: Value& statement=params->as_junction(0, "statement must be code");
1.49 paf 613:
1.53 paf 614: ulong limit=0;
1.100 parser 615: ulong offset=0;
1.49 paf 616: if(params->size()>1) {
1.109 parser 617: Value& voptions=params->as_no_junction(1, "options must be hash, not code");
618: if(voptions.is_defined())
619: if(Hash *options=voptions.get_hash()) {
620: if(Value *vlimit=(Value *)options->get(*sql_limit_name))
621: limit=(ulong)r.process(*vlimit).as_double();
622: if(Value *voffset=(Value *)options->get(*sql_offset_name))
623: offset=(ulong)r.process(*voffset).as_double();
624: } else
625: PTHROW(0, 0,
626: &method_name,
627: "options must be hash");
1.49 paf 628: }
629:
1.54 paf 630: Temp_lang temp_lang(r, String::UL_SQL);
631: const String& statement_string=r.process(statement).as_string();
1.55 paf 632: const char *statement_cstr=
633: statement_string.cstr(String::UL_UNSPECIFIED, r.connection);
1.94 parser 634: Table_sql_event_handlers handlers(pool, method_name,
635: statement_string, statement_cstr);
1.52 paf 636: bool need_rethrow=false; Exception rethrow_me;
1.108 parser 637: PTRY {
1.52 paf 638: r.connection->query(
1.91 parser 639: statement_cstr, offset, limit,
1.94 parser 640: handlers);
1.52 paf 641: }
1.82 parser 642: PCATCH(e) { // query problem
1.52 paf 643: rethrow_me=e; need_rethrow=true;
644: }
645: PEND_CATCH
646: if(need_rethrow)
1.91 parser 647: PTHROW(rethrow_me.type(), rethrow_me.code(),
1.53 paf 648: &statement_string, // setting more specific source [were url]
1.52 paf 649: rethrow_me.comment());
1.96 parser 650:
651: Table *result=
652: handlers.table?handlers.table: // query resulted in table? return it
653: new(pool) Table(pool, &method_name, 0); // query returned no table, fake it
1.49 paf 654:
655: // replace any previous table value
1.96 parser 656: static_cast<VTable *>(r.self)->set_table(*result);
1.49 paf 657: }
658:
1.88 parser 659: static void _columns(Request& r, const String& method_name, MethodParams *) {
660: Pool& pool=r.pool();
661:
662: Array& result_columns=*new(pool) Array(pool);
1.89 parser 663: result_columns+=new(pool) String(pool, "column");
1.88 parser 664: Table& result_table=*new(pool) Table(pool, &method_name, &result_columns);
665:
666: Table& source_table=static_cast<VTable *>(r.self)->table();
667: if(const Array *source_columns=source_table.columns()) {
1.98 parser 668: Array_iter i(*source_columns);
669: while(i.has_next()) {
1.88 parser 670: Array& result_row=*new(pool) Array(pool);
1.98 parser 671: result_row+=i.next();
1.88 parser 672: result_table+=&result_row;
673: }
674: }
675:
676: VTable& result=*new(pool) VTable(pool, &result_table);
677: result.set_name(method_name);
678: r.write_no_lang(result);
679: }
680:
1.66 paf 681: // constructor
682:
683: MTable::MTable(Pool& apool) : Methoded(apool) {
684: set_name(*NEW String(pool(), TABLE_CLASS_NAME));
685:
1.49 paf 686: // ^table:set{data}
687: // ^table:set[nameless]{data}
1.66 paf 688: add_native_method("set", Method::CT_DYNAMIC, _set, 1, 2);
1.2 paf 689:
1.49 paf 690: // ^table:load[file]
691: // ^table:load[nameless;file]
1.66 paf 692: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.91 parser 693:
694: // ^table:calendar[month|montheng;year;month]
695: // ^table:calendar[week|weekeng;year;month;day]
696: add_native_method("calendar", Method::CT_DYNAMIC, _calendar, 3, 4);
1.22 paf 697:
698: // ^table.save[file]
699: // ^table.save[nameless;file]
1.66 paf 700: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.6 paf 701:
702: // ^table.count[]
1.66 paf 703: add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0);
1.6 paf 704:
705: // ^table.line[]
1.66 paf 706: add_native_method("line", Method::CT_DYNAMIC, _line, 0, 0);
1.6 paf 707:
1.10 paf 708: // ^table.offset[]
709: // ^table.offset[offset]
1.66 paf 710: add_native_method("offset", Method::CT_DYNAMIC, _offset, 0, 1);
1.7 paf 711:
1.10 paf 712: // ^table.menu{code}
713: // ^table.menu{code}[delim]
1.66 paf 714: add_native_method("menu", Method::CT_DYNAMIC, _menu, 1, 2);
1.74 paf 715:
1.79 paf 716: // ^table:hash[key field name]
717: // ^table:hash[key field name][value field name;...]
1.74 paf 718: add_native_method("hash", Method::CT_DYNAMIC, _hash, 1, 1000);
1.32 paf 719:
1.102 parser 720: // ^table.sort{string-key-maker} ^table.sort{string-key-maker}[desc|asc]
721: // ^table.sort(numeric-key-maker) ^table.sort(numeric-key-maker)[desc|asc]
1.66 paf 722: add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2);
1.8 paf 723:
1.36 paf 724: // ^table.locate[field;value]
1.66 paf 725: add_native_method("locate", Method::CT_DYNAMIC, _locate, 2, 2);
1.39 paf 726:
727: // ^table.flip[]
1.66 paf 728: add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0);
1.41 paf 729:
730: // ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d}
1.66 paf 731: add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);
1.42 paf 732:
733: // ^table.join[table]
1.66 paf 734: add_native_method("join", Method::CT_DYNAMIC, _join, 1, 1);
1.49 paf 735:
736:
1.100 parser 737: // ^table:sql[query]
738: // ^table:sql[query][$.limit(1) $.offset(2)]
739: add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2);
1.88 parser 740:
741: // ^table:columns[]
742: add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0);
1.66 paf 743: }
744:
745: // global variable
746:
747: Methoded *table_class;
748:
749: // creator
750:
751: Methoded *MTable_create(Pool& pool) {
752: return table_class=new(pool) MTable(pool);
1.40 paf 753: }
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