/* -*- c-basic-offset: 2 -*- */
/*
Copyright ( C ) 2015 Brazil
This library is free software ; you can redistribute it and / or
modify it under the terms of the GNU Lesser General Public
License version 2 . 1 as published by the Free Software Foundation .
This library is distributed in the hope that it will be useful ,
but WITHOUT ANY WARRANTY ; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
Lesser General Public License for more details .
You should have received a copy of the GNU Lesser General Public
License along with this library ; if not , write to the Free Software
Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1335 USA
*/
#include "../grn_ctx_impl.h"
#ifdef GRN_WITH_MRUBY
#include <mruby.h>
#include <mruby/class .h>
#include <mruby/variable.h>
#include <mruby/data.h>
#include "../grn_db.h"
#include "mrb_record.h"
#include "mrb_bulk.h"
typedef struct {
grn_obj *table;
grn_id id;
grn_obj key;
} grn_mrb_record;
static void
mrb_grn_record_free(mrb_state *mrb, void *data)
{
grn_ctx *ctx = (grn_ctx *)mrb->ud;
grn_mrb_record *record = data;
if (!record) {
return ;
}
GRN_OBJ_FIN(ctx, &(record->key));
mrb_free(mrb, record);
}
static struct mrb_data_type mrb_grn_record_type = {
"Groonga::Record" ,
mrb_grn_record_free
};
static mrb_value
mrb_grn_record_initialize(mrb_state *mrb, mrb_value self)
{
grn_mrb_record *record;
mrb_value mrb_table;
mrb_value mrb_id;
mrb_get_args(mrb, "oo" , &mrb_table, &mrb_id);
DATA_TYPE(self) = &mrb_grn_record_type;
record = mrb_malloc(mrb, sizeof (grn_mrb_record));
record->table = DATA_PTR(mrb_table);
if (mrb_nil_p(mrb_id)) {
record->id = GRN_ID_NIL;
} else {
record->id = mrb_fixnum(mrb_id);
}
switch (record->table->header.domain) {
case GRN_ID_NIL :
case GRN_DB_SHORT_TEXT :
GRN_SHORT_TEXT_INIT(&(record->key), 0 );
break ;
default :
GRN_VALUE_FIX_SIZE_INIT(&(record->key), 0 , record->table->header.domain);
break ;
}
DATA_PTR(self) = record;
mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "@table" ), mrb_table);
mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "@id" ), mrb_id);
return self;
}
static mrb_value
mrb_grn_record_set_id(mrb_state *mrb, mrb_value self)
{
grn_mrb_record *record;
mrb_value mrb_id;
record = DATA_PTR(self);
mrb_get_args(mrb, "o" , &mrb_id);
if (mrb_nil_p(mrb_id)) {
record->id = GRN_ID_NIL;
} else {
record->id = mrb_fixnum(mrb_id);
}
mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "@id" ), mrb_id);
return mrb_id;
}
static mrb_value
mrb_grn_record_key(mrb_state *mrb, mrb_value self)
{
grn_ctx *ctx = (grn_ctx *)mrb->ud;
grn_mrb_record *record;
int key_size;
record = DATA_PTR(self);
if (record->id == GRN_ID_NIL) {
return mrb_nil_value();
}
if (record->table->header.type == GRN_TABLE_NO_KEY) {
return mrb_nil_value();
}
GRN_BULK_REWIND(&(record->key));
key_size = grn_table_get_key(ctx, record->table, record->id,
GRN_BULK_HEAD(&(record->key)),
GRN_BULK_VSIZE(&(record->key)));
if (key_size > GRN_BULK_VSIZE(&(record->key))) {
grn_bulk_space(ctx, &(record->key), key_size);
key_size = grn_table_get_key(ctx, record->table, record->id,
GRN_BULK_HEAD(&(record->key)),
GRN_BULK_VSIZE(&(record->key)));
}
return grn_mrb_value_from_bulk(mrb, &(record->key));
}
void
grn_mrb_record_init(grn_ctx *ctx)
{
grn_mrb_data *data = &(ctx->impl->mrb);
mrb_state *mrb = data->state;
struct RClass *module = data->module;
struct RClass *klass;
klass = mrb_define_class_under(mrb, module, "Record" , data->object_class);
MRB_SET_INSTANCE_TT(klass, MRB_TT_DATA);
mrb_define_method(mrb, klass, "initialize" ,
mrb_grn_record_initialize, MRB_ARGS_REQ(2 ));
mrb_define_method(mrb, klass, "id=" ,
mrb_grn_record_set_id, MRB_ARGS_REQ(1 ));
mrb_define_method(mrb, klass, "key" ,
mrb_grn_record_key, MRB_ARGS_NONE());
}
#endif
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