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-rw-r--r--activerecord/CHANGELOG.md6
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb9
-rw-r--r--activerecord/test/cases/adapter_test.rb28
3 files changed, 43 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index a7c2680015..63555de8e6 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,9 @@
+* Deprecate `column_name_length`, `table_name_length`, `columns_per_table`,
+ `indexes_per_table`, `columns_per_multicolumn_index`, `sql_query_length`,
+ and `joins_per_query` methods in `DatabaseLimits`.
+
+ *Ryuta Kamizono*
+
* ActiveRecord::Base.configurations now returns an object.
ActiveRecord::Base.configurations used to return a hash, but this
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
index 7a9e7add24..ad148efcfe 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
@@ -1,5 +1,7 @@
# frozen_string_literal: true
+require "active_support/deprecation"
+
module ActiveRecord
module ConnectionAdapters # :nodoc:
module DatabaseLimits
@@ -12,11 +14,13 @@ module ActiveRecord
def column_name_length
64
end
+ deprecate :column_name_length
# Returns the maximum length of a table name.
def table_name_length
64
end
+ deprecate :table_name_length
# Returns the maximum allowed length for an index name. This
# limit is enforced by \Rails and is less than or equal to
@@ -36,16 +40,19 @@ module ActiveRecord
def columns_per_table
1024
end
+ deprecate :columns_per_table
# Returns the maximum number of indexes per table.
def indexes_per_table
16
end
+ deprecate :indexes_per_table
# Returns the maximum number of columns in a multicolumn index.
def columns_per_multicolumn_index
16
end
+ deprecate :columns_per_multicolumn_index
# Returns the maximum number of elements in an IN (x,y,z) clause.
# +nil+ means no limit.
@@ -57,11 +64,13 @@ module ActiveRecord
def sql_query_length
1048575
end
+ deprecate :sql_query_length
# Returns maximum number of joins in a single query.
def joins_per_query
256
end
+ deprecate :joins_per_query
end
end
end
diff --git a/activerecord/test/cases/adapter_test.rb b/activerecord/test/cases/adapter_test.rb
index 67734d24d7..1c461a0459 100644
--- a/activerecord/test/cases/adapter_test.rb
+++ b/activerecord/test/cases/adapter_test.rb
@@ -300,6 +300,34 @@ module ActiveRecord
def test_supports_multi_insert_is_deprecated
assert_deprecated { @connection.supports_multi_insert? }
end
+
+ def test_column_name_length_is_deprecated
+ assert_deprecated { @connection.column_name_length }
+ end
+
+ def test_table_name_length_is_deprecated
+ assert_deprecated { @connection.table_name_length }
+ end
+
+ def test_columns_per_table_is_deprecated
+ assert_deprecated { @connection.columns_per_table }
+ end
+
+ def test_indexes_per_table_is_deprecated
+ assert_deprecated { @connection.indexes_per_table }
+ end
+
+ def test_columns_per_multicolumn_index_is_deprecated
+ assert_deprecated { @connection.columns_per_multicolumn_index }
+ end
+
+ def test_sql_query_length_is_deprecated
+ assert_deprecated { @connection.sql_query_length }
+ end
+
+ def test_joins_per_query_is_deprecated
+ assert_deprecated { @connection.joins_per_query }
+ end
end
class AdapterForeignKeyTest < ActiveRecord::TestCase