2009-09-14 06:21:24 -04:00
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require 'spec_helper'
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2008-05-27 00:02:23 -04:00
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module Arel
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describe Table do
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before do
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@relation = Table.new(:users)
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end
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2009-05-17 16:20:40 -04:00
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2010-09-14 16:39:33 -04:00
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describe 'primary_key' do
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it 'should return an attribute' do
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check @relation.primary_key.name.should == :id
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end
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end
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2010-09-08 18:29:22 -04:00
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describe 'having' do
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it 'adds a having clause' do
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mgr = @relation.having @relation[:id].eq(10)
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mgr.to_sql.should be_like %{
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SELECT FROM "users" HAVING "users"."id" = 10
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}
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end
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end
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2010-09-07 17:02:23 -04:00
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describe 'backwards compat' do
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describe 'joins' do
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it 'returns nil' do
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check @relation.joins(nil).should == nil
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end
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end
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2010-09-07 17:49:06 -04:00
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describe 'join' do
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2010-09-09 12:27:29 -04:00
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it 'noops on nil' do
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mgr = @relation.join nil
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mgr.to_sql.should be_like %{ SELECT FROM "users" }
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end
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2010-09-07 17:49:06 -04:00
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it 'takes a second argument for join type' do
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right = @relation.alias
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predicate = @relation[:id].eq(right[:id])
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mgr = @relation.join(right, Nodes::OuterJoin).on(predicate)
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mgr.to_sql.should be_like %{
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SELECT FROM "users"
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2010-09-07 18:26:21 -04:00
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LEFT OUTER JOIN "users" "users_2"
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2010-09-07 17:49:06 -04:00
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ON "users"."id" = "users_2"."id"
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}
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end
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end
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2010-09-07 17:02:23 -04:00
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end
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2010-09-07 19:07:37 -04:00
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describe 'group' do
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it 'should create a group' do
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manager = @relation.group @relation[:id]
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manager.to_sql.should be_like %{
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SELECT FROM "users" GROUP BY "users"."id"
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}
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end
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end
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2010-08-18 19:32:32 -04:00
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describe 'alias' do
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it 'should create a node that proxies to a table' do
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check @relation.aliases.should == []
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node = @relation.alias
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check @relation.aliases.should == [node]
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check node.name.should == 'users_2'
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check node[:id].relation.should == node
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check node[:id].relation.should != node
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end
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end
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2010-08-13 14:53:36 -04:00
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describe 'new' do
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2010-09-21 16:50:53 -04:00
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it 'takes :columns' do
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columns = Table.engine.connection.columns("users")
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@relation = Table.new(:users, :columns => columns)
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check @relation.columns.first.name.should == :id
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check @relation.engine.should == Table.engine
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end
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2010-08-13 14:53:36 -04:00
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it 'should accept an engine' do
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rel = Table.new :users, 'foo'
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2010-08-16 17:43:18 -04:00
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check rel.engine.should == 'foo'
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2010-08-13 14:53:36 -04:00
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end
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it 'should accept a hash' do
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rel = Table.new :users, :engine => 'foo'
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2010-08-16 17:43:18 -04:00
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check rel.engine.should == 'foo'
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2010-08-13 14:53:36 -04:00
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end
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2010-09-23 16:38:18 -04:00
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it 'ignores as if it equals name' do
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rel = Table.new :users, :as => 'users'
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rel.table_alias.should be_nil
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end
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2010-08-13 14:53:36 -04:00
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end
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2010-09-06 20:17:49 -04:00
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describe 'order' do
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it "should take an order" do
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manager = @relation.order "foo"
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manager.to_sql.should be_like %{ SELECT FROM "users" ORDER BY foo }
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end
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end
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2010-08-16 18:02:37 -04:00
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describe 'take' do
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it "should add a limit" do
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manager = @relation.take 1
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2010-08-19 13:37:50 -04:00
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manager.project SqlLiteral.new '*'
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2010-08-16 18:02:37 -04:00
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manager.to_sql.should be_like %{ SELECT * FROM "users" LIMIT 1 }
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end
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end
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2010-08-13 17:13:38 -04:00
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describe 'project' do
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it 'can project' do
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2010-08-19 13:37:50 -04:00
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manager = @relation.project SqlLiteral.new '*'
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2010-09-08 16:25:42 -04:00
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manager.to_sql.should be_like %{ SELECT * FROM "users" }
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end
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it 'takes multiple parameters' do
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manager = @relation.project SqlLiteral.new('*'), SqlLiteral.new('*')
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manager.to_sql.should be_like %{ SELECT *, * FROM "users" }
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2010-08-13 17:13:38 -04:00
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end
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end
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2010-08-13 00:21:20 -04:00
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describe 'where' do
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it "returns a tree manager" do
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manager = @relation.where @relation[:id].eq 1
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manager.project @relation[:id]
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manager.should be_kind_of TreeManager
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2010-08-13 18:30:22 -04:00
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manager.to_sql.should be_like %{
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2010-08-13 00:21:20 -04:00
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SELECT "users"."id"
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FROM "users"
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WHERE "users"."id" = 1
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2010-08-13 18:30:22 -04:00
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}
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2010-08-13 00:21:20 -04:00
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end
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end
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2010-08-12 17:55:31 -04:00
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describe 'columns' do
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it 'returns a list of columns' do
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columns = @relation.columns
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2010-08-16 17:43:18 -04:00
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check columns.length.should == 2
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2010-09-10 19:58:19 -04:00
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columns.map { |x| x.name.to_s }.sort.should == %w{ name id }.sort
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2010-08-12 17:55:31 -04:00
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end
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end
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2010-08-12 18:40:58 -04:00
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it "should have a name" do
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@relation.name.should == :users
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end
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it "should have an engine" do
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@relation.engine.should == Table.engine
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end
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2008-05-27 00:02:23 -04:00
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describe '[]' do
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describe 'when given a', Symbol do
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it "manufactures an attribute if the symbol names an attribute within the relation" do
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2010-08-12 17:24:21 -04:00
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column = @relation[:id]
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2010-09-10 19:58:19 -04:00
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check column.name.should == :id
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2010-08-12 17:55:31 -04:00
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column.should be_kind_of Attributes::Integer
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2008-05-27 00:02:23 -04:00
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end
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end
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2010-09-18 14:33:07 -04:00
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describe 'when table does not exist' do
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it 'returns nil' do
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@relation[:foooo].should be_nil
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end
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end
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2008-05-27 00:02:23 -04:00
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end
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end
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2009-05-17 16:20:40 -04:00
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end
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