class ActiveRecord::ConnectionAdapters::Table

end
t.remove_timestamps
t.remove_index
t.remove_belongs_to
t.remove_references
t.remove
t.boolean
t.binary
t.date
t.time
t.timestamp
t.datetime
t.decimal
t.float
t.integer
t.text
t.string
t.belongs_to
t.references
t.rename
t.change_default
t.change
t.timestamps
t.rename_index
t.index
t.column
change_table :table do |t|
Available transformations are:
Also see TableDefinition and SchemaStatements#create_table
Represents an SQL table in an abstract way for updating a table.

def change(column_name, type, options = {})

t.change(:description, :text)
t.change(:name, :string, limit: 80)

See TableDefinition#column for details of the options you can use.
Changes the column's definition according to the new options.

def change(column_name, type, options = {})
  @base.change_column(@table_name, column_name, type, options)
end

def change_default(column_name, default)

t.change_default(:authorized, 1)
t.change_default(:qualification, 'new')

Sets a new default value for a column. See SchemaStatements#change_column_default

def change_default(column_name, default)
  @base.change_column_default(@table_name, column_name, default)
end

def column(column_name, type, options = {})

t.column(:name, :string)
====== Creating a simple column

See TableDefinition#column for details of the options you can use.
Adds a new column to the named table.

def column(column_name, type, options = {})
  @base.add_column(@table_name, column_name, type, options)
end

def column_exists?(column_name, type = nil, options = {})

Checks to see if a column exists. See SchemaStatements#column_exists?

def column_exists?(column_name, type = nil, options = {})
  @base.column_exists?(@table_name, column_name, type, options)
end

def index(column_name, options = {})

t.index([:branch_id, :party_id], unique: true, name: 'by_branch_party')
====== Creating a named index
t.index([:branch_id, :party_id], unique: true)
====== Creating a unique index
t.index(:name)
====== Creating a simple index

an Array of Symbols. See SchemaStatements#add_index
Adds a new index to the table. +column_name+ can be a single Symbol, or

def index(column_name, options = {})
  @base.add_index(@table_name, column_name, options)
end

def index_exists?(column_name, options = {})

Checks to see if an index exists. See SchemaStatements#index_exists?

def index_exists?(column_name, options = {})
  @base.index_exists?(@table_name, column_name, options)
end

def initialize(table_name, base)

def initialize(table_name, base)
  @table_name = table_name
  @base = base
end

def native

def native
  @base.native_database_types
end

def references(*args)

t.belongs_to(:supplier, polymorphic: true)
t.references(:user)

references and belongs_to are acceptable.
Adds a reference. Optionally adds a +type+ column, if :polymorphic option is provided.

def references(*args)
  options = args.extract_options!
  args.each do |ref_name|
    @base.add_reference(@table_name, ref_name, options)
  end
end

def remove(*column_names)

t.remove(:qualification, :experience)
t.remove(:qualification)

Removes the column(s) from the table definition.

def remove(*column_names)
  @base.remove_columns(@table_name, *column_names)
end

def remove_index(options = {})

t.remove_index name: :by_branch_party
====== Remove the index named by_branch_party in the table_name table
t.remove_index column: [:branch_id, :party_id]
====== Remove the index named index_table_name_on_branch_id_and_party_id in the table_name table
t.remove_index column: :branch_id
====== Remove the index named index_table_name_on_branch_id in the table_name table
t.remove_index :column
====== Remove the index_table_name_on_column in the table_name table

Removes the given index from the table.

def remove_index(options = {})
  @base.remove_index(@table_name, options)
end

def remove_references(*args)

t.remove_belongs_to(:supplier, polymorphic: true)
t.remove_references(:user)

remove_references and remove_belongs_to are acceptable.
Removes a reference. Optionally removes a +type+ column.

def remove_references(*args)
  options = args.extract_options!
  args.each do |ref_name|
    @base.remove_reference(@table_name, ref_name, options)
  end
end

def remove_timestamps

t.remove_timestamps

Removes the timestamp columns (+created_at+ and +updated_at+) from the table.

def remove_timestamps
  @base.remove_timestamps(@table_name)
end

def rename(column_name, new_column_name)

t.rename(:description, :name)

Renames a column.

def rename(column_name, new_column_name)
  @base.rename_column(@table_name, column_name, new_column_name)
end

def rename_index(index_name, new_index_name)

t.rename_index(:user_id, :account_id)

Renames the given index on the table.

def rename_index(index_name, new_index_name)
  @base.rename_index(@table_name, index_name, new_index_name)
end

def timestamps

t.timestamps

Adds timestamps (+created_at+ and +updated_at+) columns to the table. See SchemaStatements#add_timestamps

def timestamps
  @base.add_timestamps(@table_name)
end

Modules

Classes