int db_dbi_open(MDB_txn *const txn, DB_schema *const schema, unsigned int opts, DB_column const *const cols, count_t const ncols, strarg_t const name, MDB_dbi *const dbi) {
int rc;
uint64_t const dbname_id = db_string_id(txn, schema, name);
if(!dbname_id) return -1;
DB_VAL(dbinfo_val, 2);
db_bind(dbinfo_val, 0);
db_bind(dbinfo_val, dbname_id);
DB_VAL(info_val, 1);
db_bind(info_val, 0xff & opts);
mdb_put(txn, schema->schema, dbinfo_val, info_val, MDB_NOOVERWRITE);
// TODO: Check opts
MDB_cursor *cur = NULL;
mdb_cursor_open(txn, schema->schema, &cur);
DB_VAL(dbcols_val, 2);
db_bind(dbcols_val, 1);
db_bind(dbcols_val, dbname_id);
MDB_val col_val;
mdb_cursor_get(cur, &dbcols_val, &col_val, MDB_GET);
for(; MDB_SUCCESS == rc; rc = mdb_cursor_get(cur, &dbcols_val, &col_val, MDB_NEXT_DUP)) {
uint64_t const col = db_column(col_val, 0);
uint64_t const type = db_column(col_val, 1);
strarg_t const colname = db_column_text(txn, schema, col_val, 2);
if(col >= ncols) break; // Extra columns are not an error.
if(type != cols[i].type || 0 != strcmp(colname, cols[i].name)) {
mdb_cursor_close(cur); cur = NULL;
return -1;
}
}
mdb_cursor_close(cur); cur = NULL;
for(index_t i = 0; i < ncols; ++i) {
uint64_t const colname_id = db_string_id(txn, schema, cols[i].name);
if(!colname_id) return -1;
DB_VAL(col_val, 3);
db_bind(col_val, i);
db_bind(col_val, cols[i].type);
db_bind(col_val, colname_id);
rc = mdb_put(txn, schema->schema, dbcols_val, col_val, MDB_NODUPDATA);
if(MDB_SUCCESS != rc && MDB_KEYEXIST != rc) return -1;
}
mdb_dbi_open(txn, name, MDB_CREATE | opts, dbi);
return 0;
}
int do_binds(char *sql) {
char *txt="X";
int ok;
ok = db_compile(db,sql) && db_bind(db,":txt",dbChar,0,txt,-1) && db_open(db) && db_exec(db);
if (!ok) {
printf("compile failed: %s, SQL:%s\n",db->error,sql);
}
ok = db_fetch(db);
printf("compiled ok, fetch = %d\n",ok);
if (!ok) return 0;
printf("text:'%s'\n",db_text(db->out.cols));
return 1;
}
int onDbVarGet(Socket *sock, vssHttp *req, SocketMap *map) { // Генерация статистики по серверу
char buf[1024],id[80],name[80];
httpSrv *srv = (void*)sock->pool;
strSetLength(&srv->buf,0); // ClearResulted
vss r=req->B;
vssGetVar2Buffer(req->args,"id",id,sizeof(id));
vssGetVar2Buffer(req->args,"name",name,sizeof(name));
//strCat(&srv->buf,r.data,r.len); char *sql = srv->buf;
printf("DB->REQ: get a var '%s' for id '%s'\n",name,id);
if (db_compile(db, var_get_sql)
&& db_bind(db,"id",dbChar,0,id,strlen(id))
&& db_bind(db,"name",dbChar,0,name,strlen(name))
&& db_open(db) && db_exec(db) && db_fetch(db) ) { // ok - respons a data
printf("Yes!\n");
char *t = db_text(db->out.cols);
printf("Resp:%s\n",t);
SocketSendHttp(sock,req,t,-1); // send result of first column
} else { //error
printf("ERR:%s\n",db->error);
SocketPrintHttp(sock,req,"-%s",db->error);
}
return 1;
}
