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require 'spec_helper'
module Arel
describe 'update manager' do
describe 'new' do
it 'takes an engine' do
Arel::UpdateManager.new Table.engine
end
end
describe 'set' do
it "updates with null" do
table = Table.new(:users)
um = Arel::UpdateManager.new Table.engine
um.table table
um.set [[table[:name], nil]]
um.to_sql.should be_like %{ UPDATE "users" SET "name" = NULL }
end
it 'takes a string' do
table = Table.new(:users)
um = Arel::UpdateManager.new Table.engine
um.table table
um.set Nodes::SqlLiteral.new "foo = bar"
um.to_sql.should be_like %{ UPDATE "users" SET foo = bar }
end
it 'takes a list of lists' do
table = Table.new(:users)
um = Arel::UpdateManager.new Table.engine
um.table table
um.set [[table[:id], 1], [table[:name], 'hello']]
um.to_sql.should be_like %{
UPDATE "users" SET "id" = 1, "name" = 'hello'
}
end
it 'chains' do
table = Table.new(:users)
um = Arel::UpdateManager.new Table.engine
um.set([[table[:id], 1], [table[:name], 'hello']]).should == um
end
end
describe 'table' do
it 'generates an update statement' do
um = Arel::UpdateManager.new Table.engine
um.table Table.new(:users)
um.to_sql.should be_like %{ UPDATE "users" }
end
it 'chains' do
um = Arel::UpdateManager.new Table.engine
um.table(Table.new(:users)).should == um
end
end
describe 'where' do
it 'generates a where clause' do
table = Table.new :users
um = Arel::UpdateManager.new Table.engine
um.table table
um.where table[:id].eq(1)
um.to_sql.should be_like %{
UPDATE "users" WHERE "users"."id" = 1
}
end
it 'chains' do
table = Table.new :users
um = Arel::UpdateManager.new Table.engine
um.table table
um.where(table[:id].eq(1)).should == um
end
end
describe "TreeManager" do
subject do
table = Table.new :users
Arel::UpdateManager.new(Table.engine).tap do |manager|
manager.table table
manager.where table[:id].eq(1)
end
end
it_should_behave_like "TreeManager"
end
end
end
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