forked from rdeusser/contrib
/
migrate.go
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/
migrate.go
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// Copyright 2019-present Facebook
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code generated by entc, DO NOT EDIT.
package migrate
import (
"context"
"fmt"
"io"
"entgo.io/ent/dialect"
"entgo.io/ent/dialect/sql/schema"
)
var (
// WithGlobalUniqueID sets the universal ids options to the migration.
// If this option is enabled, ent migration will allocate a 1<<32 range
// for the ids of each entity (table).
// Note that this option cannot be applied on tables that already exist.
WithGlobalUniqueID = schema.WithGlobalUniqueID
// WithDropColumn sets the drop column option to the migration.
// If this option is enabled, ent migration will drop old columns
// that were used for both fields and edges. This defaults to false.
WithDropColumn = schema.WithDropColumn
// WithDropIndex sets the drop index option to the migration.
// If this option is enabled, ent migration will drop old indexes
// that were defined in the schema. This defaults to false.
// Note that unique constraints are defined using `UNIQUE INDEX`,
// and therefore, it's recommended to enable this option to get more
// flexibility in the schema changes.
WithDropIndex = schema.WithDropIndex
// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
WithForeignKeys = schema.WithForeignKeys
)
// Schema is the API for creating, migrating and dropping a schema.
type Schema struct {
drv dialect.Driver
}
// NewSchema creates a new schema client.
func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
// Create creates all schema resources.
func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
return Create(ctx, s, Tables, opts...)
}
// Create creates all table resources using the given schema driver.
func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
migrate, err := schema.NewMigrate(s.drv, opts...)
if err != nil {
return fmt.Errorf("ent/migrate: %w", err)
}
return migrate.Create(ctx, tables...)
}
// WriteTo writes the schema changes to w instead of running them against the database.
//
// if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
// log.Fatal(err)
// }
func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
}