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1.1 parser 1: /** @file
2: Parser: @b table class.
3:
1.28 misha 4: Copyright(c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.11 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.14 paf 6: */
1.1 parser 7:
1.35 ! moko 8: static const char * const IDENT_VTABLE_C="$Date: 2010-09-20 02:24:32 $";
1.1 parser 9:
10: #include "pa_vtable.h"
11: #include "pa_vstring.h"
1.5 parser 12: #include "pa_vhash.h"
1.22 paf 13: #include "pa_vvoid.h"
1.1 parser 14:
1.3 parser 15: #ifndef DOXYGEN
1.1 parser 16: struct Record_info {
1.22 paf 17: Table* table;
18: HashStringValue* hash;
1.1 parser 19: };
1.3 parser 20: #endif
1.29 misha 21:
22: static void store_column_item_to_hash(const String* column_name, Record_info *info) {
23: const String* column_item=info->table->item(*column_name);
24: info->hash->put(*column_name,
25: (column_item && !column_item->is_empty())
26: ?new VString(*column_item)
27: :new VString()
28: );
1.1 parser 29: }
1.29 misha 30:
1.22 paf 31: Value* VTable::fields_element() {
1.29 misha 32: Value& result=*new VHash;
1.22 paf 33: Table& ltable=table();
1.29 misha 34: if(!ltable.count())
35: return &result;
36:
37: HashStringValue* hash=result.get_hash();
38:
39: if(Table::columns_type columns=ltable.columns()) { // named
40: Record_info record_info={<able, hash};
1.1 parser 41: columns->for_each(store_column_item_to_hash, &record_info);
1.29 misha 42: } else { // nameless
43: size_t row_size=ltable[ltable.current()]->count(); // number of columns in current row
44: for(size_t index=0; index<row_size; index++){
45: const String* column_item=ltable.item(index);
46: hash->put(String::Body::Format(index),
47: (column_item && !column_item->is_empty())
48: ?new VString(*column_item)
49: :new VString()
50: );
51: }
1.1 parser 52: }
1.29 misha 53:
54: return &result;
1.1 parser 55: }
56:
1.31 misha 57: Value* VTable::get_element(const String& aname) {
1.1 parser 58: // fields
1.16 paf 59: if(aname==TABLE_FIELDS_ELEMENT_NAME)
1.1 parser 60: return fields_element();
61:
1.2 parser 62: // methods
1.31 misha 63: if(Value* result=VStateless_object::get_element(aname))
1.2 parser 64: return result;
65:
1.1 parser 66: // columns
67: if(ftable) {
1.16 paf 68: int index=ftable->column_name2index(aname, false);
69: if(index>=0) // column aname|number valid
1.32 pretende 70: {
71: const String* string=ftable->item(index); // there is such column
72: return new VString(string ? *string : String::Empty);
73: }
1.1 parser 74: }
75:
1.27 misha 76: throw Exception(PARSER_RUNTIME,
1.16 paf 77: &aname,
1.1 parser 78: "column not found");
79: }
1.33 misha 80:
81: const String* VTable::get_json_string(Json_options* options) {
1.35 ! moko 82: String& result = *new String("[", String::L_AS_IS);
1.33 misha 83: Table& ltable=table();
84: if(options && options->table == Json_options::T_ARRAY){
85: // [
86: // ["c1", "c2", "c3" ...] || null (for nameless),
87: // ["v11", "v12", "v13" ...],
88: // ["v21", "v22", "v23" ...],
89: // ...
90: // ]
91:
92: // columns
93: if(ltable.columns()){
94: // named
1.35 ! moko 95: if (options->indent){
! 96: result << "\n\t" << options->indent << "[\"";
! 97: } else {
! 98: result << "\n[\"";
! 99: }
! 100:
1.33 misha 101: bool need_delim=false;
102: for(Array_iterator<const String*> c(*ltable.columns()); c.has_next(); ) {
103: if(need_delim)
104: result << "\",\"";
105: result.append(*c.next(), String::L_JSON, true/*forced lang*/);
106: need_delim=true;
107: }
108: result << "\"]";
1.35 ! moko 109: } else {
! 110: // nameless
! 111: if (options->indent){
! 112: result << "\n\t" << options->indent << "null";
! 113: } else {
! 114: result << "\nnull";
! 115: }
! 116: }
1.33 misha 117:
118: // data
119: if(ltable.count()){
120: result << ",";
121: for(Array_iterator<ArrayString*> r(ltable); r.has_next(); ) {
1.35 ! moko 122: if (options->indent){
! 123: result << "\n\t" << options->indent << "[\"";
! 124: } else {
! 125: result << "\n[\"";
! 126: }
1.33 misha 127: bool need_delim=false;
128: for(Array_iterator<const String*> c(*r.next()); c.has_next(); ) {
129: if(need_delim)
130: result << "\",\"";
131: result.append(*c.next(), String::L_JSON, true/*forced lang*/);
132: need_delim=true;
133: }
134: result << (r.has_next() ? "\"]," : "\"]");
135: }
136: }
1.34 misha 137: result << "\n";
1.35 ! moko 138: result << options->indent;
1.33 misha 139: } else {
140: // [
141: // {"c1":"v11", "c2":"v12", "c3":"v13"},
142: // {"c1":"v21", "c2":"v22", "c3":"v23"},
143: // ...
144: // ]
145: ArrayString* columns=ltable.columns();
146: size_t columns_count = (columns) ? columns->count() : 0;
147:
148: for(Array_iterator<ArrayString*> r(ltable); r.has_next(); ) {
149: ArrayString* row=r.next();
150:
1.35 ! moko 151: if (options->indent){
! 152: result << "\n\t" << options->indent << "{\"";
! 153: } else {
! 154: result << "\n{\"";
! 155: }
1.33 misha 156: for(size_t index=0; index<row->count(); index++){
157: if(index)
158: result << "\",\"";
159: result.append(index < columns_count ? *columns->get(index) : String(format(index, 0)), String::L_JSON, true/*forced lang*/);
160: result << "\":\"";
161: result.append(*row->get(index), String::L_JSON, true/*forced lang*/);
162: }
163: result << "\"}";
164:
1.35 ! moko 165: if (r.has_next()){
! 166: result << ",";
! 167: } else {
! 168: result << "\n";
! 169: result << options->indent;
! 170: }
1.33 misha 171: }
172: }
173:
174: result << "]";
175: return &result;
176: }