class Marten::DB::Management::Statement

• Marten::DB::Management::Statement
• Reference
• Object

Overview

Represents an SQL statement holding the detail of the tables and associated columns.

This abstraction is mainly used in the context of the schema editor, where deferred statements need to be temporarily stored in order to be executed later on. In those situations, statements need to provide the ability to be mutated to apply possible schema changes to them.

Defined in:

marten/db/management/statement.cr
marten/db/management/statement/columns.cr
marten/db/management/statement/foreign_key_name.cr
marten/db/management/statement/index_name.cr
marten/db/management/statement/reference.cr
marten/db/management/statement/table.cr

Constructors

• .new(template : String, **kwargs)

Instance Method Summary

• #params : Hash(String, Marten::DB::Management::Statement::Columns | Marten::DB::Management::Statement::ForeignKeyName | Marten::DB::Management::Statement::IndexName | Marten::DB::Management::Statement::Table | String)
• #references_column?(table : String, column : String) : Bool
• #references_table?(name : String) : Bool
• #rename_column(table : String, old_name : String, new_name : String)
• #rename_table(old_name : String, new_name : String)
• #template : String
• #to_s

  Returns a nicely readable and concise string representation of this object, typically intended for users.

Constructor Detail

Instance Method Detail