aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/migration/change_schema_test.rb
blob: 9b26c30d14b09916b7a2b95b40b1c4d07e7f5685 (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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
require 'cases/helper'

module ActiveRecord
  class Migration
    class ChangeSchemaTest < ActiveRecord::TestCase
      attr_reader :connection, :table_name

      def setup
        super
        @connection = ActiveRecord::Base.connection
        @table_name = :testings
      end

      teardown do
        connection.drop_table :testings rescue nil
        ActiveRecord::Base.primary_key_prefix_type = nil
        ActiveRecord::Base.clear_cache!
      end

      def test_create_table_without_id
        testing_table_with_only_foo_attribute do
          assert_equal connection.columns(:testings).size, 1
        end
      end

      def test_add_column_with_primary_key_attribute
        testing_table_with_only_foo_attribute do
          connection.add_column :testings, :id, :primary_key
          assert_equal connection.columns(:testings).size, 2
        end
      end

      def test_create_table_adds_id
        connection.create_table :testings do |t|
          t.column :foo, :string
        end

        assert_equal %w(id foo), connection.columns(:testings).map(&:name)
      end

      def test_create_table_with_not_null_column
        connection.create_table :testings do |t|
          t.column :foo, :string, :null => false
        end

        assert_raises(ActiveRecord::StatementInvalid) do
          connection.execute "insert into testings (foo) values (NULL)"
        end
      end

      def test_create_table_with_defaults
        # MySQL doesn't allow defaults on TEXT or BLOB columns.
        mysql = current_adapter?(:MysqlAdapter, :Mysql2Adapter)

        connection.create_table :testings do |t|
          t.column :one, :string, :default => "hello"
          t.column :two, :boolean, :default => true
          t.column :three, :boolean, :default => false
          t.column :four, :integer, :default => 1
          t.column :five, :text, :default => "hello" unless mysql
        end

        columns = connection.columns(:testings)
        one = columns.detect { |c| c.name == "one" }
        two = columns.detect { |c| c.name == "two" }
        three = columns.detect { |c| c.name == "three" }
        four = columns.detect { |c| c.name == "four" }
        five = columns.detect { |c| c.name == "five" } unless mysql

        assert_equal "hello", one.default
        assert_equal true, two.default
        assert_equal false, three.default
        assert_equal 1, four.default
        assert_equal "hello", five.default unless mysql
      end

      if current_adapter?(:PostgreSQLAdapter)
        def test_add_column_with_array
          connection.create_table :testings
          connection.add_column :testings, :foo, :string, :array => true

          columns = connection.columns(:testings)
          array_column = columns.detect { |c| c.name == "foo" }

          assert array_column.array
        end

        def test_create_table_with_array_column
          connection.create_table :testings do |t|
            t.string :foo, :array => true
          end

          columns = connection.columns(:testings)
          array_column = columns.detect { |c| c.name == "foo" }

          assert array_column.array
        end
      end

      def test_create_table_with_limits
        connection.create_table :testings do |t|
          t.column :foo, :string, :limit => 255

          t.column :default_int, :integer

          t.column :one_int,    :integer, :limit => 1
          t.column :four_int,   :integer, :limit => 4
          t.column :eight_int,  :integer, :limit => 8
        end

        columns = connection.columns(:testings)
        foo = columns.detect { |c| c.name == "foo" }
        assert_equal 255, foo.limit

        default = columns.detect { |c| c.name == "default_int" }
        one     = columns.detect { |c| c.name == "one_int"     }
        four    = columns.detect { |c| c.name == "four_int"    }
        eight   = columns.detect { |c| c.name == "eight_int"   }

        if current_adapter?(:PostgreSQLAdapter)
          assert_equal 'integer', default.sql_type
          assert_equal 'smallint', one.sql_type
          assert_equal 'integer', four.sql_type
          assert_equal 'bigint', eight.sql_type
        elsif current_adapter?(:MysqlAdapter, :Mysql2Adapter)
          assert_match 'int(11)', default.sql_type
          assert_match 'tinyint', one.sql_type
          assert_match 'int', four.sql_type
          assert_match 'bigint', eight.sql_type
        elsif current_adapter?(:OracleAdapter)
          assert_equal 'NUMBER(38)', default.sql_type
          assert_equal 'NUMBER(1)', one.sql_type
          assert_equal 'NUMBER(4)', four.sql_type
          assert_equal 'NUMBER(8)', eight.sql_type
        end
      end

      def test_create_table_with_primary_key_prefix_as_table_name_with_underscore
        ActiveRecord::Base.primary_key_prefix_type = :table_name_with_underscore

        connection.create_table :testings do |t|
          t.column :foo, :string
        end

        assert_equal %w(testing_id foo), connection.columns(:testings).map(&:name)
      end

      def test_create_table_with_primary_key_prefix_as_table_name
        ActiveRecord::Base.primary_key_prefix_type = :table_name

        connection.create_table :testings do |t|
          t.column :foo, :string
        end

        assert_equal %w(testingid foo), connection.columns(:testings).map(&:name)
      end

      def test_create_table_raises_when_redefining_primary_key_column
        error = assert_raise(ArgumentError) do
          connection.create_table :testings do |t|
            t.column :id, :string
          end
        end

        assert_equal "you can't redefine the primary key column 'id'. To define a custom primary key, pass { id: false } to create_table.", error.message
      end

      def test_create_table_raises_when_redefining_custom_primary_key_column
        error = assert_raise(ArgumentError) do
          connection.create_table :testings, primary_key: :testing_id do |t|
            t.column :testing_id, :string
          end
        end

        assert_equal "you can't redefine the primary key column 'testing_id'. To define a custom primary key, pass { id: false } to create_table.", error.message
      end

      def test_create_table_with_timestamps_should_create_datetime_columns
        connection.create_table table_name do |t|
          t.timestamps
        end
        created_columns = connection.columns(table_name)

        created_at_column = created_columns.detect {|c| c.name == 'created_at' }
        updated_at_column = created_columns.detect {|c| c.name == 'updated_at' }

        assert created_at_column.null
        assert updated_at_column.null
      end

      def test_create_table_with_timestamps_should_create_datetime_columns_with_options
        connection.create_table table_name do |t|
          t.timestamps :null => false
        end
        created_columns = connection.columns(table_name)

        created_at_column = created_columns.detect {|c| c.name == 'created_at' }
        updated_at_column = created_columns.detect {|c| c.name == 'updated_at' }

        assert !created_at_column.null
        assert !updated_at_column.null
      end

      def test_create_table_without_a_block
        connection.create_table table_name
      end

      # SQLite3 will not allow you to add a NOT NULL
      # column to a table without a default value.
      unless current_adapter?(:SQLite3Adapter)
        def test_add_column_not_null_without_default
          connection.create_table :testings do |t|
            t.column :foo, :string
          end
          connection.add_column :testings, :bar, :string, :null => false

          assert_raise(ActiveRecord::StatementInvalid) do
            connection.execute "insert into testings (foo, bar) values ('hello', NULL)"
          end
        end
      end

      def test_add_column_not_null_with_default
        connection.create_table :testings do |t|
          t.column :foo, :string
        end

        con = connection
        connection.execute "insert into testings (#{con.quote_column_name('id')}, #{con.quote_column_name('foo')}) values (1, 'hello')"
        assert_nothing_raised {connection.add_column :testings, :bar, :string, :null => false, :default => "default" }

        assert_raises(ActiveRecord::StatementInvalid) do
          connection.execute "insert into testings (#{con.quote_column_name('id')}, #{con.quote_column_name('foo')}, #{con.quote_column_name('bar')}) values (2, 'hello', NULL)"
        end
      end

      def test_add_column_with_timestamp_type
        connection.create_table :testings do |t|
          t.column :foo, :timestamp
        end

        klass = Class.new(ActiveRecord::Base)
        klass.table_name = 'testings'

        assert_equal :datetime, klass.columns_hash['foo'].type

        if current_adapter?(:PostgreSQLAdapter)
          assert_equal 'timestamp without time zone', klass.columns_hash['foo'].sql_type
        else
          assert_equal klass.connection.type_to_sql('datetime'), klass.columns_hash['foo'].sql_type
        end
      end

      def test_change_column_quotes_column_names
        connection.create_table :testings do |t|
          t.column :select, :string
        end

        connection.change_column :testings, :select, :string, :limit => 10

        # Oracle needs primary key value from sequence
        if current_adapter?(:OracleAdapter)
          connection.execute "insert into testings (id, #{connection.quote_column_name('select')}) values (testings_seq.nextval, '7 chars')"
        else
          connection.execute "insert into testings (#{connection.quote_column_name('select')}) values ('7 chars')"
        end
      end

      def test_keeping_default_and_notnull_constraints_on_change
        connection.create_table :testings do |t|
          t.column :title, :string
        end
        person_klass = Class.new(ActiveRecord::Base)
        person_klass.table_name = 'testings'

        person_klass.connection.add_column "testings", "wealth", :integer, :null => false, :default => 99
        person_klass.reset_column_information
        assert_equal 99, person_klass.columns_hash["wealth"].default
        assert_equal false, person_klass.columns_hash["wealth"].null
        # Oracle needs primary key value from sequence
        if current_adapter?(:OracleAdapter)
          assert_nothing_raised {person_klass.connection.execute("insert into testings (id, title) values (testings_seq.nextval, 'tester')")}
        else
          assert_nothing_raised {person_klass.connection.execute("insert into testings (title) values ('tester')")}
        end

        # change column default to see that column doesn't lose its not null definition
        person_klass.connection.change_column_default "testings", "wealth", 100
        person_klass.reset_column_information
        assert_equal 100, person_klass.columns_hash["wealth"].default
        assert_equal false, person_klass.columns_hash["wealth"].null

        # rename column to see that column doesn't lose its not null and/or default definition
        person_klass.connection.rename_column "testings", "wealth", "money"
        person_klass.reset_column_information
        assert_nil person_klass.columns_hash["wealth"]
        assert_equal 100, person_klass.columns_hash["money"].default
        assert_equal false, person_klass.columns_hash["money"].null

        # change column
        person_klass.connection.change_column "testings", "money", :integer, :null => false, :default => 1000
        person_klass.reset_column_information
        assert_equal 1000, person_klass.columns_hash["money"].default
        assert_equal false, person_klass.columns_hash["money"].null

        # change column, make it nullable and clear default
        person_klass.connection.change_column "testings", "money", :integer, :null => true, :default => nil
        person_klass.reset_column_information
        assert_nil person_klass.columns_hash["money"].default
        assert_equal true, person_klass.columns_hash["money"].null

        # change_column_null, make it not nullable and set null values to a default value
        person_klass.connection.execute('UPDATE testings SET money = NULL')
        person_klass.connection.change_column_null "testings", "money", false, 2000
        person_klass.reset_column_information
        assert_nil person_klass.columns_hash["money"].default
        assert_equal false, person_klass.columns_hash["money"].null
        assert_equal 2000, connection.select_values("SELECT money FROM testings").first.to_i
      end

      def test_change_column_null
        testing_table_with_only_foo_attribute do
          notnull_migration = Class.new(ActiveRecord::Migration) do
            def change
              change_column_null :testings, :foo, false
            end
          end
          notnull_migration.new.suppress_messages do
            notnull_migration.migrate(:up)
            assert_equal false, connection.columns(:testings).find{ |c| c.name == "foo"}.null
            notnull_migration.migrate(:down)
            assert connection.columns(:testings).find{ |c| c.name == "foo"}.null
          end
        end
      end

      def test_column_exists
        connection.create_table :testings do |t|
          t.column :foo, :string
        end

        assert connection.column_exists?(:testings, :foo)
        assert_not connection.column_exists?(:testings, :bar)
      end

      def test_column_exists_with_type
        connection.create_table :testings do |t|
          t.column :foo, :string
          t.column :bar, :decimal, :precision => 8, :scale => 2
        end

        assert connection.column_exists?(:testings, :foo, :string)
        assert_not connection.column_exists?(:testings, :foo, :integer)

        assert connection.column_exists?(:testings, :bar, :decimal)
        assert_not connection.column_exists?(:testings, :bar, :integer)
      end

      def test_column_exists_with_definition
        connection.create_table :testings do |t|
          t.column :foo, :string, limit: 100
          t.column :bar, :decimal, precision: 8, scale: 2
          t.column :taggable_id, :integer, null: false
          t.column :taggable_type, :string, default: 'Photo'
        end

        assert connection.column_exists?(:testings, :foo, :string, limit: 100)
        assert_not connection.column_exists?(:testings, :foo, :string, limit: nil)
        assert connection.column_exists?(:testings, :bar, :decimal, precision: 8, scale: 2)
        assert_not connection.column_exists?(:testings, :bar, :decimal, precision: nil, scale: nil)
        assert connection.column_exists?(:testings, :taggable_id, :integer, null: false)
        assert_not connection.column_exists?(:testings, :taggable_id, :integer, null: true)
        assert connection.column_exists?(:testings, :taggable_type, :string, default: 'Photo')
        assert_not connection.column_exists?(:testings, :taggable_type, :string, default: nil)
      end

      def test_column_exists_on_table_with_no_options_parameter_supplied
        connection.create_table :testings do |t|
          t.string :foo
        end
        connection.change_table :testings do |t|
          assert t.column_exists?(:foo)
          assert !(t.column_exists?(:bar))
        end
      end

      private
      def testing_table_with_only_foo_attribute
        connection.create_table :testings, :id => false do |t|
          t.column :foo, :string
        end

        yield
      end
    end
  end
end