aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/view_test.rb
blob: aa3ff6160c51544e7aa6d77993146f8f86046b4e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
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.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
    # TODO: switch this assertion around once we changed #tables to not return views.
    ActiveSupport::Deprecation.silence { assert @connection.table_exists?(view_name), "'#{view_name}' table should 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
end

if ActiveRecord::Base.connection.supports_views?
  class ViewWithPrimaryKeyTest < ActiveRecord::TestCase
    include ViewBehavior

    private
      def create_view(name, query)
        @connection.execute "CREATE VIEW #{name} AS #{query}"
      end

      def drop_view(name)
        @connection.execute "DROP VIEW #{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
      # TODO: switch this assertion around once we changed #tables to not return views.
      ActiveSupport::Deprecation.silence { assert @connection.table_exists?(view_name), "'#{view_name}' table should 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, :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 fo `if current_adapter?(:Mysql2Adapter, :PostgreSQLAdapter)`
end # end fo `if ActiveRecord::Base.connection.supports_views?`

if ActiveRecord::Base.connection.respond_to?(:supports_materialized_views?) &&
    ActiveRecord::Base.connection.supports_materialized_views?
  class MaterializedViewTest < ActiveRecord::PostgreSQLTestCase
    include ViewBehavior

    private
      def create_view(name, query)
        @connection.execute "CREATE MATERIALIZED VIEW #{name} AS #{query}"
      end

      def drop_view(name)
        @connection.execute "DROP MATERIALIZED VIEW #{name}" if @connection.view_exists? name
      end
  end
end