43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
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// Copyright 2015 PingCAP, Inc.
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package db
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import (
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"github.com/pingcap/tidb/context"
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)
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// currentDBKeyType is a dummy type to avoid naming collision in context.
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type currentDBKeyType int
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// String defines a Stringer function for debugging and pretty printing.
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func (k currentDBKeyType) String() string {
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return "current_db"
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}
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const currentDBKey currentDBKeyType = 0
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// BindCurrentSchema saves parameter schema as current schema name value into context.
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func BindCurrentSchema(ctx context.Context, schema string) {
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ctx.SetValue(currentDBKey, schema)
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}
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// GetCurrentSchema gets current schema name from context.
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func GetCurrentSchema(ctx context.Context) string {
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v, ok := ctx.Value(currentDBKey).(string)
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if !ok {
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return ""
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}
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return v
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}
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