SchemaGrammar class abstract

Turns a Blueprint into DDL for one dialect. The defaults here are the ANSI-ish subset SQLite and PostgreSQL share; adapters override type names, literals and the catalogue queries.

Implementers

• PostgresSchemaGrammar
• SqliteSchemaGrammar

Constructors

SchemaGrammar()

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

name → String

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

boolLiteral(bool value) → String

How a bool default is written.

compileAlter(Blueprint blueprint) → List<String>

One statement per added column, column index and command.

compileColumn(ColumnDefinition column) → String

compileColumnListing(String table) → Compiled

(sql, bindings) returning a name column per column of table.

compileCommand(String table, SchemaCommand command) → String

compileCreate(Blueprint blueprint) → List<String>

One CREATE TABLE followed by a CREATE INDEX per index.

compileDefault(Object? value) → String

compileDrop(String table) → String

compileDropIfExists(String table) → String

compileIndex(String table, IndexCommand index) → String

compileRename(String from, String to) → String

compileTableExists() → Compiled

(sql, bindings) selecting one row when the bound table name exists.

compileTableListing() → String

SQL selecting every user table name in the database (one column, no bindings) — used by Schema.dropAllTables.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

typeFor(ColumnDefinition column) → String

The SQL type for column.

wrap(String identifier) → String

Double-quotes an identifier (each dotted segment separately).

Operators

operator ==(Object other) → bool

The equality operator.

inherited