111 lines
2.3 KiB
Go
111 lines
2.3 KiB
Go
// Copyright © 2016 SurrealDB Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package txn
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import (
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"context"
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"github.com/surrealdb/surrealdb/cnf"
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"github.com/surrealdb/surrealdb/kvs"
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"github.com/surrealdb/surrealdb/sql"
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"github.com/surrealdb/surrealdb/util/keys"
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)
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func (t *TX) AllDB(ctx context.Context, ns string) (out []*sql.DefineDatabaseStatement, err error) {
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var kvs []kvs.KV
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key := &keys.DB{KV: cnf.Settings.DB.Base, NS: ns, DB: keys.Ignore}
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if kvs, err = t.GetP(ctx, 0, key.Encode(), 0); err != nil {
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return
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}
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for _, kv := range kvs {
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val := &sql.DefineDatabaseStatement{}
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val.Decode(kv.Val())
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out = append(out, val)
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}
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return
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}
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func (t *TX) GetDB(ctx context.Context, ns, db string) (val *sql.DefineDatabaseStatement, err error) {
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if out, ok := t.get(_db, db); ok {
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return out.(*sql.DefineDatabaseStatement), nil
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}
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var kv kvs.KV
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key := &keys.DB{KV: cnf.Settings.DB.Base, NS: ns, DB: db}
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if kv, err = t.Get(ctx, 0, key.Encode()); err != nil {
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return nil, err
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}
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if !kv.Exi() {
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return nil, ErrorDBNotFound
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}
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val = &sql.DefineDatabaseStatement{}
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val.Decode(kv.Val())
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t.set(_db, db, val)
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return
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}
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func (t *TX) AddDB(ctx context.Context, ns, db string) (val *sql.DefineDatabaseStatement, err error) {
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if out, ok := t.get(_db, db); ok {
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return out.(*sql.DefineDatabaseStatement), nil
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}
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if _, err = t.AddNS(ctx, ns); err != nil {
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return
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}
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var kv kvs.KV
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key := &keys.DB{KV: cnf.Settings.DB.Base, NS: ns, DB: db}
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if kv, err = t.Get(ctx, 0, key.Encode()); err != nil {
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return
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}
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if kv != nil && kv.Exi() {
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val = &sql.DefineDatabaseStatement{}
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val.Decode(kv.Val())
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t.set(_db, db, val)
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return
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}
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val = &sql.DefineDatabaseStatement{Name: sql.NewIdent(db)}
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t.PutC(ctx, 0, key.Encode(), val.Encode(), nil)
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t.set(_db, db, val)
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return
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}
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func (t *TX) DelDB(ns, db string) {
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t.del(_db, db)
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}
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