Documentation ¶
Index ¶
Constants ¶
This section is empty.
Variables ¶
View Source
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 // WithFixture sets the foreign-key renaming option to the migration when upgrading // ent from v0.1.0 (issue-#285). Defaults to false. WithFixture = schema.WithFixture // WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true. WithForeignKeys = schema.WithForeignKeys )
View Source
var ( // CategoriesColumns holds the columns for the "categories" table. CategoriesColumns = []*schema.Column{ {Name: "id", Type: field.TypeUint64, Increment: true}, {Name: "name", Type: field.TypeString}, } // CategoriesTable holds the schema information for the "categories" table. CategoriesTable = &schema.Table{ Name: "categories", Columns: CategoriesColumns, PrimaryKey: []*schema.Column{CategoriesColumns[0]}, } // CollarsColumns holds the columns for the "collars" table. CollarsColumns = []*schema.Column{ {Name: "id", Type: field.TypeInt, Increment: true}, {Name: "color", Type: field.TypeEnum, Enums: []string{"green", "red", "blue"}}, {Name: "pet_collar", Type: field.TypeString, Unique: true, Nullable: true}, } // CollarsTable holds the schema information for the "collars" table. CollarsTable = &schema.Table{ Name: "collars", Columns: CollarsColumns, PrimaryKey: []*schema.Column{CollarsColumns[0]}, ForeignKeys: []*schema.ForeignKey{ { Symbol: "collars_pets_collar", Columns: []*schema.Column{CollarsColumns[2]}, RefColumns: []*schema.Column{PetsColumns[0]}, OnDelete: schema.SetNull, }, }, } // OwnersColumns holds the columns for the "owners" table. OwnersColumns = []*schema.Column{ {Name: "id", Type: field.TypeUUID}, {Name: "name", Type: field.TypeString}, {Name: "age", Type: field.TypeInt}, } // OwnersTable holds the schema information for the "owners" table. OwnersTable = &schema.Table{ Name: "owners", Columns: OwnersColumns, PrimaryKey: []*schema.Column{OwnersColumns[0]}, } // PetsColumns holds the columns for the "pets" table. PetsColumns = []*schema.Column{ {Name: "id", Type: field.TypeString}, {Name: "name", Type: field.TypeString}, {Name: "age", Type: field.TypeInt}, {Name: "owner_pets", Type: field.TypeUUID, Nullable: true}, } // PetsTable holds the schema information for the "pets" table. PetsTable = &schema.Table{ Name: "pets", Columns: PetsColumns, PrimaryKey: []*schema.Column{PetsColumns[0]}, ForeignKeys: []*schema.ForeignKey{ { Symbol: "pets_owners_pets", Columns: []*schema.Column{PetsColumns[3]}, RefColumns: []*schema.Column{OwnersColumns[0]}, OnDelete: schema.SetNull, }, }, } // CategoryPetsColumns holds the columns for the "category_pets" table. CategoryPetsColumns = []*schema.Column{ {Name: "category_id", Type: field.TypeUint64}, {Name: "pet_id", Type: field.TypeString}, } // CategoryPetsTable holds the schema information for the "category_pets" table. CategoryPetsTable = &schema.Table{ Name: "category_pets", Columns: CategoryPetsColumns, PrimaryKey: []*schema.Column{CategoryPetsColumns[0], CategoryPetsColumns[1]}, ForeignKeys: []*schema.ForeignKey{ { Symbol: "category_pets_category_id", Columns: []*schema.Column{CategoryPetsColumns[0]}, RefColumns: []*schema.Column{CategoriesColumns[0]}, OnDelete: schema.Cascade, }, { Symbol: "category_pets_pet_id", Columns: []*schema.Column{CategoryPetsColumns[1]}, RefColumns: []*schema.Column{PetsColumns[0]}, OnDelete: schema.Cascade, }, }, } // PetFriendsColumns holds the columns for the "pet_friends" table. PetFriendsColumns = []*schema.Column{ {Name: "pet_id", Type: field.TypeString}, {Name: "friend_id", Type: field.TypeString}, } // PetFriendsTable holds the schema information for the "pet_friends" table. PetFriendsTable = &schema.Table{ Name: "pet_friends", Columns: PetFriendsColumns, PrimaryKey: []*schema.Column{PetFriendsColumns[0], PetFriendsColumns[1]}, ForeignKeys: []*schema.ForeignKey{ { Symbol: "pet_friends_pet_id", Columns: []*schema.Column{PetFriendsColumns[0]}, RefColumns: []*schema.Column{PetsColumns[0]}, OnDelete: schema.Cascade, }, { Symbol: "pet_friends_friend_id", Columns: []*schema.Column{PetFriendsColumns[1]}, RefColumns: []*schema.Column{PetsColumns[0]}, OnDelete: schema.Cascade, }, }, } // Tables holds all the tables in the schema. Tables = []*schema.Table{ CategoriesTable, CollarsTable, OwnersTable, PetsTable, CategoryPetsTable, PetFriendsTable, } )
Functions ¶
This section is empty.
Types ¶
type Schema ¶
type Schema struct {
// contains filtered or unexported fields
}
Schema is the API for creating, migrating and dropping a schema.
Click to show internal directories.
Click to hide internal directories.