Annotation of parser3/src/classes/table.C, revision 1.106
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)
1.20 paf 5:
1.1 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
7: */
1.106 ! parser 8: static const char *RCSId="$Id: table.C,v 1.105 2001/08/21 11:12:20 parser Exp $";
1.1 paf 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();
1.44 paf 68: // remove empty lines
69: if(!string.size())
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
1.90 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
1.61 paf 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)) {
1.28 paf 113: if(!*row_chars) // remove empty lines
114: continue;
1.1 paf 115: Array *row=new(pool) Array(pool);
116: while(char *cell_chars=lsplit(&row_chars, '\t')) {
117: String *cell=new(pool) String(pool);
1.44 paf 118: cell->APPEND_TAINTED(cell_chars, 0, file, line);
1.1 paf 119: *row+=cell;
120: }
121: line++;
122: table+=row;
123: };
124:
125: // replace any previous table value
1.18 paf 126: static_cast<VTable *>(r.self)->set_table(table);
1.1 paf 127: }
1.2 paf 128:
1.91 parser 129: static Table *fill_month_days(Request& r,
130: const String& method_name, MethodParams *params, bool rus){
131: Pool& pool=r.pool();
132: Table *result=new(pool) Table(pool, &method_name, 0/*&columns*/);
133:
134: int year=params->as_int(1, r);
135: int month=max(1, min(params->as_int(2, r), 12)) -1;
136:
137: tm tmIn={0, 0, 0, 1, month, year-1900};
138: time_t t=mktime(&tmIn);
139: if(t<0)
140: PTHROW(0, 0,
141: &method_name,
142: "invalid date");
143: tm *tmOut=localtime(&t);
144:
145: int weekDay1=tmOut->tm_wday;
146: if(rus)
147: weekDay1=weekDay1?weekDay1-1:6; //sunday last
148: int monthDays=getMonthDays(year, month);
149:
150: for(int _day=1-weekDay1; _day<=monthDays;) {
151: Array& row=*new(pool) Array(pool, 7);
152: for(int wday=0; wday<7; wday++, _day++) {
1.93 parser 153: String *cell=new(pool) String(pool);
1.91 parser 154: if(_day>=1 && _day<=monthDays) {
1.106 ! parser 155: char *buf=(char *)pool.malloc(2+1);
1.93 parser 156: cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day),
157: method_name.origin().file, method_name.origin().line);
158: }
1.91 parser 159: row+=cell;
160: }
161: *result+=&row;
162: }
163:
164: return result;
165: }
166:
167: static Table *fill_week_days(Request& r,
168: const String& method_name, MethodParams *params, bool rus){
169: Pool& pool=r.pool();
170: Array& columns=*new(pool) Array(pool, 4);
171: columns+=new(pool) String(pool, "year");
172: columns+=new(pool) String(pool, "month");
173: columns+=new(pool) String(pool, "day");
174: columns+=new(pool) String(pool, "weekday");
175: Table *result=new(pool) Table(pool, &method_name, &columns);
176:
177: int year=params->as_int(1, r);
178: int month=max(1, min(params->as_int(2, r), 12)) -1;
179: int day=params->as_int(3, r);
180:
181: tm tmIn={0, 0, 18, day, month, year-1900};
182: time_t t=mktime(&tmIn);
183: if(t<0)
184: PTHROW(0, 0,
185: &method_name,
186: "invalid date");
187: tm *tmOut=localtime(&t);
188:
189: int baseWeekDay=tmOut->tm_wday;
190: if(rus)
191: baseWeekDay=baseWeekDay?baseWeekDay-1:6; //sunday last
192:
193: t-=baseWeekDay*SECS_PER_DAY;
194:
195: for(int curWeekDay=0; curWeekDay<7; curWeekDay++, t+=SECS_PER_DAY) {
196: tm *tmOut=localtime(&t);
197: Array& row=*new(pool) Array(pool, 4);
1.93 parser 198: #define WDFILL(size, value) { \
1.106 ! parser 199: char *buf=(char *)pool.malloc(size+1); \
1.93 parser 200: String *cell=new(pool) String(pool); \
201: cell->APPEND_CLEAN(buf, sprintf(buf, "%0"#size"d", value), \
202: method_name.origin().file, \
203: method_name.origin().line); \
204: row+=cell; \
205: }
206: WDFILL(4, 1900+tmOut->tm_year);
207: WDFILL(2, 1+tmOut->tm_mon);
208: WDFILL(2, tmOut->tm_mday);
209: WDFILL(2, tmOut->tm_wday);
1.91 parser 210: *result+=&row;
211: }
212:
213: return result;
214: }
215:
216: static void _calendar(Request& r, const String& method_name, MethodParams *params) {
217: Pool& pool=r.pool();
218:
1.92 parser 219: const String& what=params->as_string(0, "format must be strig");
1.91 parser 220: bool rus=false;
1.92 parser 221: if(what=="rus")
1.91 parser 222: rus=true;
1.92 parser 223: else if(what=="eng")
1.91 parser 224: rus=false;
225: else
226: PTHROW(0, 0,
227: &what,
228: "must be rus|eng");
229:
230: Table *result=0;
231: if(params->size()==1+2)
232: result=fill_month_days(r, method_name, params, rus);
233: else // 1+3
234: result=fill_week_days(r, method_name, params, rus);
235:
236: // replace any previous table value
237: static_cast<VTable *>(r.self)->set_table(*result);
238: }
239:
240:
241:
242:
1.61 paf 243: static void _save(Request& r, const String& method_name, MethodParams *params) {
1.22 paf 244: Pool& pool=r.pool();
1.90 parser 245: Value& vtable_name=params->as_no_junction(params->size()-1,
1.61 paf 246: "file name must not be code");
1.22 paf 247:
1.31 paf 248: Table& table=static_cast<VTable *>(r.self)->table();
249:
250: String sdata(pool);
251: if(params->size()==1) { // not nameless=named output
252: // write out names line
253: if(table.columns()) { // named table
1.98 parser 254: Array_iter i(*table.columns());
255: while(i.has_next()) {
256: sdata.append(*i.next_string(), //*static_cast<String *>(table.columns()->quick_get(column)),
257: String::UL_TABLE);
258: if(i.has_next())
1.31 paf 259: sdata.APPEND_CONST("\t");
260: }
261: } else { // nameless table
1.98 parser 262: if(int lsize=table.size()?static_cast<Array *>(table.get(0))->size():0)
1.31 paf 263: for(int column=0; column<lsize; column++) {
1.106 ! parser 264: char *cindex_tab=(char *)pool.malloc(MAX_NUMBER);
1.31 paf 265: snprintf(cindex_tab, MAX_NUMBER, "%d\t", column);
266: sdata.APPEND_CONST(cindex_tab);
267: }
268: else
269: sdata.APPEND_CONST("empty nameless table");
270: }
271: sdata.APPEND_CONST("\n");
272: }
273: // data lines
1.98 parser 274: Array_iter i(table);
275: while(i.has_next()) {
276: Array_iter c(*static_cast<Array *>(i.next()));
277: while(c.has_next()) {
278: sdata.append(*c.next_string(), //*static_cast<String *>(row->quick_get(column)),
279: String::UL_TABLE);
280: if(c.has_next())
1.31 paf 281: sdata.APPEND_CONST("\t");
282: }
283: sdata.APPEND_CONST("\n");
284: }
285:
286: // write
1.61 paf 287: file_write(pool, r.absolute(vtable_name.as_string()),
1.48 paf 288: sdata.cstr(), sdata.size(), true);
1.22 paf 289: }
290:
1.93 parser 291: static void _count(Request& r, const String& method_name, MethodParams *) {
1.6 paf 292: Pool& pool=r.pool();
1.18 paf 293: Value& value=*new(pool) VInt(pool, static_cast<VTable *>(r.self)->table().size());
1.93 parser 294: value.set_name(method_name);
1.15 paf 295: r.write_no_lang(value);
1.6 paf 296: }
297:
1.61 paf 298: static void _line(Request& r, const String& method_name, MethodParams *) {
1.6 paf 299: Pool& pool=r.pool();
1.37 paf 300: Value& value=*new(pool) VInt(pool, 1+static_cast<VTable *>(r.self)->table().current());
1.93 parser 301: value.set_name(method_name);
1.15 paf 302: r.write_no_lang(value);
1.6 paf 303: }
304:
1.61 paf 305: static void _offset(Request& r, const String& method_name, MethodParams *params) {
1.6 paf 306: Pool& pool=r.pool();
1.18 paf 307: Table& table=static_cast<VTable *>(r.self)->table();
1.74 paf 308: if(params->size()) {
1.90 parser 309: Value& offset_expr=params->as_junction(0, "offset must be expression");
1.80 parser 310: table.shift(r.process(offset_expr).as_int());
1.74 paf 311: } else {
1.37 paf 312: Value& value=*new(pool) VInt(pool, table.current());
1.93 parser 313: value.set_name(method_name);
1.15 paf 314: r.write_no_lang(value);
1.6 paf 315: }
316: }
317:
1.61 paf 318: static void _menu(Request& r, const String& method_name, MethodParams *params) {
1.90 parser 319: Value& body_code=params->as_junction(0, "body must be code");
1.7 paf 320:
1.61 paf 321: Value *delim_code=params->size()==2?¶ms->get(1):0;
1.7 paf 322:
1.64 paf 323: VTable& vtable=*static_cast<VTable *>(r.self);
324: Table& table=vtable.table();
1.7 paf 325: bool need_delim=false;
1.99 parser 326: int saved_current=table.current();
327: int size=table.size();
328: for(int row=0; row<size; row++) {
1.22 paf 329: table.set_current(row);
1.7 paf 330:
1.12 paf 331: Value& processed_body=r.process(body_code);
1.7 paf 332: if(delim_code) { // delimiter set?
333: const String *string=processed_body.get_string();
334: if(need_delim && string && string->size()) // need delim & iteration produced string?
335: r.write_pass_lang(r.process(*delim_code));
336: need_delim=true;
337: }
338: r.write_pass_lang(processed_body);
339: }
1.99 parser 340: table.set_current(saved_current);
1.7 paf 341: }
342:
1.61 paf 343: static void _empty(Request& r, const String& method_name, MethodParams *params) {
1.75 paf 344: Pool& pool=r.pool();
1.18 paf 345: Table& table=static_cast<VTable *>(r.self)->table();
1.75 paf 346:
347: r.write_no_lang(*new(pool) VBool(pool, table.size()==0));
1.8 paf 348: }
1.15 paf 349:
1.74 paf 350: /// used by table: _hash / table_row_to_hash
351: struct Row_info {
352: Table *table;
353: int key_field;
354: Array *value_fields;
355: Hash *hash;
356: };
357: static void table_row_to_hash(Array::Item *value, void *info) {
358: Array& row=*static_cast<Array *>(value);
359: Row_info& ri=*static_cast<Row_info *>(info);
360: Pool& pool=ri.table->pool();
361:
1.76 paf 362: if(ri.key_field<row.size()) {
363: VHash& result=*new(pool) VHash(pool);
364: Hash& hash=*result.get_hash();
1.74 paf 365: for(int i=0; i<ri.value_fields->size(); i++) {
366: int value_field=ri.value_fields->get_int(i);
367: if(value_field<row.size())
368: hash.put(
1.91 parser 369: *ri.table->columns()->get_string(value_field),
1.74 paf 370: new(pool) VString(*row.get_string(value_field)));
371: }
372:
1.77 paf 373: ri.hash->put(*row.get_string(ri.key_field), &result);
1.74 paf 374: }
375: }
376: static void _hash(Request& r, const String& method_name, MethodParams *params) {
1.97 parser 377: Pool& pool=r.pool();
1.74 paf 378: Table& table=static_cast<VTable *>(r.self)->table();
1.97 parser 379: Value& result=*new(pool) VHash(pool);
1.74 paf 380: if(const Array *columns=table.columns())
381: if(columns->size()>1) {
382:
1.90 parser 383: const String& key_field_name=params->as_no_junction(0,
1.74 paf 384: "key field name must not be code").as_string();
385: int key_field=table.column_name2index(key_field_name, true);
386: int value_fields_count=params->size()-1;
387: bool value_fields_by_params=value_fields_count!=0;
388: if(!value_fields_by_params)
389: value_fields_count=columns->size()-1; // all columns except key
390: Array value_fields(pool, value_fields_count);
391: if(value_fields_by_params) {
392: for(int i=1; i<params->size(); i++) {
1.91 parser 393: const String& value_field_name=params->as_no_junction(i,
1.74 paf 394: "value field name must not be code").as_string();
395: value_fields+=table.column_name2index(value_field_name, true);
396: }
397: } else { // by all columns except key
398: for(int i=0; i<columns->size(); i++)
399: if(i!=key_field)
400: value_fields+=i;
401: }
402:
403: // integers: key_field & value_fields
404: Row_info row_info={&table, key_field, &value_fields, result.get_hash()};
405: table.for_each(table_row_to_hash, &row_info);
406: }
1.97 parser 407: result.set_name(method_name);
408: r.write_no_lang(result);
1.74 paf 409: }
410:
411: /// used by table: _sort / sort_cmp_string|sort_cmp_double
1.78 paf 412: struct Table_seq_item {
1.34 paf 413: Array *row;
414: union {
415: char *c_str;
416: double d;
417: } value;
1.32 paf 418: };
1.34 paf 419: static int sort_cmp_string(const void *a, const void *b) {
420: return strcmp(
1.78 paf 421: static_cast<const Table_seq_item *>(a)->value.c_str,
422: static_cast<const Table_seq_item *>(b)->value.c_str
1.34 paf 423: );
424: }
425: static int sort_cmp_double(const void *a, const void *b) {
1.78 paf 426: double va=static_cast<const Table_seq_item *>(a)->value.d;
427: double vb=static_cast<const Table_seq_item *>(b)->value.d;
1.34 paf 428: if(va<vb)
429: return -1;
430: else if(va>vb)
431: return +1;
432: else
433: return 0;
434: }
1.61 paf 435: static void _sort(Request& r, const String& method_name, MethodParams *params) {
1.101 parser 436: Pool& pool=r.pool();
1.90 parser 437: Value& key_maker=params->as_junction(0, "key-maker must be code");
1.61 paf 438:
1.102 parser 439: bool reverse=params->size()==2/*..[desc|asc|]*/?
1.103 parser 440: reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc":
1.104 parser 441: false; // default=asc
1.32 paf 442:
1.101 parser 443: Table& old_table=static_cast<VTable *>(r.self)->table();
444: Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns());
1.34 paf 445:
1.101 parser 446: Table_seq_item *seq=(Table_seq_item *)pool.malloc(sizeof(Table_seq_item)*old_table.size());
1.34 paf 447: int i;
448:
449: // calculate key values
450: bool key_values_are_strings=true;
1.101 parser 451: // save 'current'
452: int saved_current=old_table.current();
453: for(i=0; i<old_table.size(); i++) {
454: old_table.set_current(i);
1.32 paf 455: // calculate key value
1.101 parser 456: seq[i].row=(MethodParams *)old_table.get(i);
1.34 paf 457: Value& value=*r.process(key_maker).as_expr_result(true/*return string as-is*/);
458: if(i==0) // determining key values type by first one
459: key_values_are_strings=value.is_string();
460:
461: if(key_values_are_strings)
462: seq[i].value.c_str=value.as_string().cstr();
463: else
464: seq[i].value.d=value.as_double();
1.32 paf 465: }
1.101 parser 466: // restore 'current'
467: old_table.set_current(saved_current);
1.32 paf 468: // sort keys
1.101 parser 469: _qsort(seq, old_table.size(), sizeof(Table_seq_item),
1.34 paf 470: key_values_are_strings?sort_cmp_string:sort_cmp_double);
1.32 paf 471:
1.34 paf 472: // reorder table as they require in 'seq'
1.101 parser 473: for(i=0; i<old_table.size(); i++)
474: new_table+=seq[reverse?old_table.size()-1-i:i].row;
1.32 paf 475:
1.101 parser 476: r.write_no_lang(*new(pool) VTable(pool, &new_table));
1.32 paf 477: }
478:
1.61 paf 479: static void _locate(Request& r, const String& method_name, MethodParams *params) {
1.72 paf 480: Pool& pool=r.pool();
481:
1.36 paf 482: VTable& vtable=*static_cast<VTable *>(r.self);
483: Table& table=vtable.table();
1.72 paf 484: Value& result=*new(pool) VBool(pool, table.locate(
1.91 parser 485: params->get(0).as_string(),
1.72 paf 486: params->get(1).as_string()));
487: result.set_name(method_name);
488: r.write_no_lang(result);
1.37 paf 489: }
490:
1.61 paf 491: static void _flip(Request& r, const String& method_name, MethodParams *params) {
1.39 paf 492: Pool& pool=r.pool();
493: VTable& vtable=*static_cast<VTable *>(r.self);
494:
495: Table& old_table=*vtable.get_table();
496: Table& new_table=*new(pool) Table(pool, &method_name, 0/*nameless*/);
497: if(old_table.size())
498: if(int old_cols=old_table.at(0).size())
499: for(int column=0; column<old_cols; column++) {
500: Array& new_row=*new(pool) Array(pool, old_table.size());
501: for(int i=0; i<old_table.size(); i++) {
502: const Array& old_row=old_table.at(i);
503: new_row+=column<old_row.size()?old_row.get(column):empty_string;
504: }
505: new_table+=&new_row;
506: }
507:
1.99 parser 508: r.write_no_lang(*new(pool) VTable(pool, &new_table));
1.39 paf 509: }
510:
1.61 paf 511: static void _append(Request& r, const String& method_name, MethodParams *params) {
1.41 paf 512: Pool& pool=r.pool();
513: // data is last parameter
1.61 paf 514: const String& string=
1.90 parser 515: r.process(params->as_junction(0, "body must be code")).as_string();
1.41 paf 516:
517: // parse cells
518: Array& row=*new(pool) Array(pool);
1.46 paf 519: string.split(row, 0, "\t", 1, String::UL_CLEAN);
1.41 paf 520:
1.66 paf 521: VTable& vtable=*static_cast<VTable *>(r.self);
522: vtable.table()+=&row;
1.41 paf 523: }
524:
1.61 paf 525: static void _join(Request& r, const String& method_name, MethodParams *params) {
1.42 paf 526: Pool& pool=r.pool();
527:
1.90 parser 528: Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table();
1.42 paf 529: if(!maybe_src)
1.91 parser 530: PTHROW(0, 0,
531: &method_name,
1.42 paf 532: "source is not a table");
533:
534: Table& src=*maybe_src;
535: Table& dest=static_cast<VTable *>(r.self)->table();
536: if(&src == &dest)
1.91 parser 537: PTHROW(0, 0,
538: &method_name,
1.42 paf 539: "source and destination are same table");
540:
541: if(const Array *dest_columns=dest.columns()) { // dest is named
542: int saved_src_current=src.current();
543: for(int src_row=0; src_row<src.size(); src_row++) {
544: src.set_current(src_row);
545: Array& dest_row=*new(pool) Array(pool);
546: for(int dest_column=0; dest_column<dest_columns->size(); dest_column++)
547: dest_row+=src.item(*dest_columns->get_string(dest_column));
548: dest+=&dest_row;
549: }
550: src.set_current(saved_src_current);
551: } else { // dest is nameless
552: for(int src_row=0; src_row<src.size(); src_row++)
553: dest+=&src.at(src_row);
554: }
555: }
556:
1.94 parser 557: #ifndef DOXYGEN
558: class Table_sql_event_handlers : public SQL_Driver_query_event_handlers {
559: public:
560: Table_sql_event_handlers(Pool& apool, const String& amethod_name,
561: const String& astatement_string, const char *astatement_cstr) :
562: pool(apool),
563: method_name(amethod_name),
564: statement_string(astatement_string),
565: statement_cstr(astatement_cstr),
566: columns(*new(pool) Array(pool)),
567: row(0), row_index(0),
568: table(0)
569: {
570: }
571:
572: void add_column(void *ptr, size_t size) {
573: String *column=new(pool) String(pool);
574: column->APPEND_TAINTED(
575: (const char *)ptr, size,
576: statement_cstr, 0);
577: columns+=column;
578: }
579: void before_rows() {
580: table=new(pool) Table(pool, &method_name, &columns);
581: }
582: void add_row() {
583: (*table)+=(row=new(pool) Array(pool));
584: }
585: void add_row_cell(void *ptr, size_t size) {
586: String *cell=new(pool) String(pool);
587: if(size)
588: cell->APPEND_TAINTED(
589: (const char *)ptr, size,
590: statement_cstr, row_index++);
591: (*row)+=cell;
592: }
593:
594: private:
595: Pool& pool;
596: const String& method_name;
597: const String& statement_string; const char *statement_cstr;
598: Array& columns;
599: Array *row;
600: uint row_index;
601: public:
602: Table *table;
603: };
604: #endif
1.61 paf 605: static void _sql(Request& r, const String& method_name, MethodParams *params) {
1.49 paf 606: Pool& pool=r.pool();
607:
608: if(!r.connection)
1.91 parser 609: PTHROW(0, 0,
610: &method_name,
1.49 paf 611: "without connect");
612:
1.90 parser 613: Value& statement=params->as_junction(0, "statement must be code");
1.49 paf 614:
1.53 paf 615: ulong limit=0;
1.100 parser 616: ulong offset=0;
1.49 paf 617: if(params->size()>1) {
1.100 parser 618: Value& options_param=params->as_no_junction(1, "options must be hash, not code");
619: if(Hash *options=options_param.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;
637: PTRY {
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);
1.8 paf 715:
1.75 paf 716: // ^table.empty[]
717: add_native_method("empty", Method::CT_DYNAMIC, _empty, 0, 0);
1.74 paf 718:
1.79 paf 719: // ^table:hash[key field name]
720: // ^table:hash[key field name][value field name;...]
1.74 paf 721: add_native_method("hash", Method::CT_DYNAMIC, _hash, 1, 1000);
1.32 paf 722:
1.102 parser 723: // ^table.sort{string-key-maker} ^table.sort{string-key-maker}[desc|asc]
724: // ^table.sort(numeric-key-maker) ^table.sort(numeric-key-maker)[desc|asc]
1.66 paf 725: add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2);
1.8 paf 726:
1.36 paf 727: // ^table.locate[field;value]
1.66 paf 728: add_native_method("locate", Method::CT_DYNAMIC, _locate, 2, 2);
1.39 paf 729:
730: // ^table.flip[]
1.66 paf 731: add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0);
1.41 paf 732:
733: // ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d}
1.66 paf 734: add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);
1.42 paf 735:
736: // ^table.join[table]
1.66 paf 737: add_native_method("join", Method::CT_DYNAMIC, _join, 1, 1);
1.49 paf 738:
739:
1.100 parser 740: // ^table:sql[query]
741: // ^table:sql[query][$.limit(1) $.offset(2)]
742: add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2);
1.88 parser 743:
744: // ^table:columns[]
745: add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0);
1.66 paf 746: }
747:
748: // global variable
749:
750: Methoded *table_class;
751:
752: // creator
753:
754: Methoded *MTable_create(Pool& pool) {
755: return table_class=new(pool) MTable(pool);
1.40 paf 756: }
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