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require "cases/helper"
require "models/book"
module ViewBehavior
extend ActiveSupport::Concern
included do
fixtures :books
end
class Ebook < ActiveRecord::Base
self.primary_key = "id"
end
def setup
super
@connection = ActiveRecord::Base.connection
create_view "ebooks", <<-SQL
SELECT id, name, status FROM books WHERE format = 'ebook'
SQL
end
def teardown
super
drop_view "ebooks"
end
def test_reading
books = Ebook.all
assert_equal [books(:rfr).id], books.map(&:id)
assert_equal ["Ruby for Rails"], books.map(&:name)
end
def test_table_exists
view_name = Ebook.table_name
assert @connection.table_exists?(view_name), "'#{view_name}' table should exist"
end
def test_column_definitions
assert_equal([["id", :integer],
["name", :string],
["status", :integer]], Ebook.columns.map { |c| [c.name, c.type] })
end
def test_attributes
assert_equal({"id" => 2, "name" => "Ruby for Rails", "status" => 0},
Ebook.first.attributes)
end
def test_does_not_assume_id_column_as_primary_key
model = Class.new(ActiveRecord::Base) do
self.table_name = "ebooks"
end
assert_nil model.primary_key
end
end
if ActiveRecord::Base.connection.supports_views?
class ViewWithPrimaryKeyTest < ActiveRecord::TestCase
include ViewBehavior
private
def create_view(name, query)
@connection.execute "CREATE VIEW #{name} AS #{query}"
end
def drop_view(name)
@connection.execute "DROP VIEW #{name}" if @connection.table_exists? name
end
end
class ViewWithoutPrimaryKeyTest < ActiveRecord::TestCase
fixtures :books
class Paperback < ActiveRecord::Base; end
setup do
@connection = ActiveRecord::Base.connection
@connection.execute <<-SQL
CREATE VIEW paperbacks
AS SELECT name, status FROM books WHERE format = 'paperback'
SQL
end
teardown do
@connection.execute "DROP VIEW paperbacks" if @connection.table_exists? "paperbacks"
end
def test_reading
books = Paperback.all
assert_equal ["Agile Web Development with Rails"], books.map(&:name)
end
def test_table_exists
view_name = Paperback.table_name
assert @connection.table_exists?(view_name), "'#{view_name}' table should exist"
end
def test_column_definitions
assert_equal([["name", :string],
["status", :integer]], Paperback.columns.map { |c| [c.name, c.type] })
end
def test_attributes
assert_equal({"name" => "Agile Web Development with Rails", "status" => 0},
Paperback.first.attributes)
end
def test_does_not_have_a_primary_key
assert_nil Paperback.primary_key
end
end
end
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