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Contents
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe DattsRight, "order_by_dynamic_attribute" do
before do
reset_database
@page = Page.create
end
it "should be aliased by order_by_datt" do
@page.add_dynamic_attribute(:price, "integer")
@page.write_dynamic_attribute :price, 2
@page.save
Page.order_by_dynamic_attribute("price", "integer").should == Page.order_by_datt("price", "integer")
end
it "should default to asc" do
@page.add_dynamic_attribute(:price, "integer")
@page.write_dynamic_attribute :price, 2
@page.save
@page_2 = Page.create
@page_2.add_dynamic_attribute(:price, "integer")
@page_2.write_dynamic_attribute :price, 1
@page_2.save
@page_3 = Page.create
@page_3.add_dynamic_attribute(:price, "float")
@page_3.write_dynamic_attribute :price, 3.0
@page_3.save
@page_4 = Page.create
@page_4.add_dynamic_attribute(:price, "float")
@page_4.write_dynamic_attribute :price, 3.5
@page_4.save
# What if different records have price but they are of different object_type?
# page_1.read_dynamic_attribute(:price) is an "integer" and it's saved in "integer_value" column
# page_2.read_dynamic_attribute(:price) is a "float" and it's saved in "float_value"
#
# How would you work on Page.order_by_dynamic_attribute("price")?
#
# Answer 1: we could require passing of the object_type in the order method
# This way, we know which column to look at => order_by_dynamic_attribute("price", "integer")
Page.order_by_dynamic_attribute("price", "integer").should == [@page_2, @page]
Page.order_by_dynamic_attribute("price DESC", "float").should == [@page_4, @page_3]
end
end
Version data entries
9 entries across 9 versions & 1 rubygems