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# frozen_string_literal: true
require "cases/helper"
require "models/book"
require "support/schema_dumping_helper"
module ViewBehavior
include SchemaDumpingHelper
extend ActiveSupport::Concern
included do
fixtures :books
end
class Ebook < ActiveRecord::Base
self.table_name = "ebooks'"
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_views
assert_equal [Ebook.table_name], @connection.views
end
def test_view_exists
view_name = Ebook.table_name
assert @connection.view_exists?(view_name), "'#{view_name}' view should exist"
end
def test_table_exists
view_name = Ebook.table_name
assert_not @connection.table_exists?(view_name), "'#{view_name}' table should not exist"
end
def test_views_ara_valid_data_sources
view_name = Ebook.table_name
assert @connection.data_source_exists?(view_name), "'#{view_name}' should be a data source"
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
def test_does_not_dump_view_as_table
schema = dump_table_schema "ebooks'"
assert_no_match %r{create_table "ebooks'"}, schema
end
private
def quote_table_name(name)
@connection.quote_table_name(name)
end
end
if ActiveRecord::Base.connection.supports_views?
class ViewWithPrimaryKeyTest < ActiveRecord::TestCase
include ViewBehavior
private
def create_view(name, query)
@connection.execute "CREATE VIEW #{quote_table_name(name)} AS #{query}"
end
def drop_view(name)
@connection.execute "DROP VIEW #{quote_table_name(name)}" if @connection.view_exists? name
end
end
class ViewWithoutPrimaryKeyTest < ActiveRecord::TestCase
include SchemaDumpingHelper
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.view_exists? "paperbacks"
end
def test_reading
books = Paperback.all
assert_equal ["Agile Web Development with Rails"], books.map(&:name)
end
def test_views
assert_equal [Paperback.table_name], @connection.views
end
def test_view_exists
view_name = Paperback.table_name
assert @connection.view_exists?(view_name), "'#{view_name}' view should exist"
end
def test_table_exists
view_name = Paperback.table_name
assert_not @connection.table_exists?(view_name), "'#{view_name}' table should not 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" => 2 },
Paperback.first.attributes)
end
def test_does_not_have_a_primary_key
assert_nil Paperback.primary_key
end
def test_does_not_dump_view_as_table
schema = dump_table_schema "paperbacks"
assert_no_match %r{create_table "paperbacks"}, schema
end
end
# sqlite dose not support CREATE, INSERT, and DELETE for VIEW
if current_adapter?(:Mysql2Adapter, :SQLServerAdapter, :PostgreSQLAdapter)
class UpdateableViewTest < ActiveRecord::TestCase
self.use_transactional_tests = false
fixtures :books
class PrintedBook < ActiveRecord::Base
self.primary_key = "id"
end
setup do
@connection = ActiveRecord::Base.connection
@connection.execute <<~SQL
CREATE VIEW printed_books
AS SELECT id, name, status, format FROM books WHERE format = 'paperback'
SQL
end
teardown do
@connection.execute "DROP VIEW printed_books" if @connection.view_exists? "printed_books"
end
def test_update_record
book = PrintedBook.first
book.name = "AWDwR"
book.save!
book.reload
assert_equal "AWDwR", book.name
end
def test_insert_record
PrintedBook.create! name: "Rails in Action", status: 0, format: "paperback"
new_book = PrintedBook.last
assert_equal "Rails in Action", new_book.name
end
def test_update_record_to_fail_view_conditions
book = PrintedBook.first
book.format = "ebook"
book.save!
assert_raises ActiveRecord::RecordNotFound do
book.reload
end
end
end
end # end of `if current_adapter?(:Mysql2Adapter, :PostgreSQLAdapter, :SQLServerAdapter)`
end # end of `if ActiveRecord::Base.connection.supports_views?`
if ActiveRecord::Base.connection.supports_materialized_views?
class MaterializedViewTest < ActiveRecord::PostgreSQLTestCase
include ViewBehavior
private
def create_view(name, query)
@connection.execute "CREATE MATERIALIZED VIEW #{quote_table_name(name)} AS #{query}"
end
def drop_view(name)
@connection.execute "DROP MATERIALIZED VIEW #{quote_table_name(name)}" if @connection.view_exists? name
end
end
end
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