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require File.join(File.dirname(__FILE__), '..', '..', 'spec_helper')
module ActiveRelation
describe Table do
before do
@table = Table.new(:users)
@relation2 = Table.new(:photos)
end
describe '[]' do
describe 'when given a', Symbol do
it "manufactures an attribute if the symbol names an attribute within the relation" do
@table[:id].should == Attribute.new(@table, :id)
@table[:does_not_exist].should be_nil
end
end
describe 'when given an', Attribute do
it "returns the attribute if the attribute is within the relation" do
@table[@table[:id]].should == @table[:id]
end
it "returns nil if the attribtue is not within the relation" do
another_relation = Table.new(:photos)
@table[another_relation[:id]].should be_nil
end
end
describe 'when given an', Expression do
before do
@expression = Expression.new(Attribute.new(@table, :id), "COUNT")
end
it "returns the Expression if the Expression is within the relation" do
@table[@expression].should be_nil
end
end
end
describe '#to_sql' do
it "manufactures a simple select query" do
@table.to_sql.should be_like("""
SELECT `users`.`name`, `users`.`id`
FROM `users`
""")
end
end
describe '#prefix_for' do
it "returns the table name" do
@table.prefix_for(Attribute.new(@table, :id)).should == :users
end
end
describe '#aliased_prefix_for' do
it "returns the table name" do
@table.aliased_prefix_for(Attribute.new(@table, :id)).should == :users
end
end
describe '#attributes' do
it 'manufactures attributes corresponding to columns in the table' do
@table.attributes.should == [
Attribute.new(@table, :name),
Attribute.new(@table, :id)
]
end
end
describe '#qualify' do
it 'manufactures a rename relation with all attribute names qualified' do
@table.qualify.should == Rename.new(@table, @table[:name] => 'users.name', @table[:id] => 'users.id')
end
end
end
end
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