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-rw-r--r--activerecord/lib/active_record/collection_cache_key.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_adapter.rb14
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb36
-rw-r--r--activerecord/lib/active_record/connection_adapters/column.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb12
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb13
-rw-r--r--activerecord/lib/active_record/relation/delegation.rb1
-rw-r--r--activerecord/lib/active_record/schema_dumper.rb2
9 files changed, 42 insertions, 42 deletions
diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb
index 5dcc98424a..8d41c0d799 100644
--- a/activerecord/lib/active_record/collection_cache_key.rb
+++ b/activerecord/lib/active_record/collection_cache_key.rb
@@ -16,7 +16,7 @@ module ActiveRecord
query = collection
.unscope(:select)
- .select("COUNT(*) AS size", "MAX(#{column}) AS timestamp")
+ .select("COUNT(*) AS #{connection.quote_column_name("size")}", "MAX(#{column}) AS timestamp")
.unscope(:order)
result = connection.select_one(query)
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
index 6b5fad00ab..677a4c6bd0 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
@@ -46,7 +46,7 @@ module ActiveRecord
spec[:collation] = collation
end
- spec[:comment] = column.comment.inspect if column.comment
+ spec[:comment] = column.comment.inspect if column.comment.present?
spec
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index c9716c9ca9..20cc205b0d 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -104,9 +104,15 @@ module ActiveRecord
@config = config
@pool = nil
@schema_cache = SchemaCache.new self
- @visitor = nil
- @prepared_statements = false
@quoted_column_names, @quoted_table_names = {}, {}
+ @visitor = arel_visitor
+
+ if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
+ @prepared_statements = true
+ @visitor.extend(DetermineIfPreparableVisitor)
+ else
+ @prepared_statements = false
+ end
end
class Version
@@ -142,6 +148,10 @@ module ActiveRecord
end
end
+ def arel_visitor # :nodoc:
+ Arel::Visitors::ToSql.new(self)
+ end
+
def valid_type?(type)
true
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 86ad422b06..64070f0e6c 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -24,6 +24,10 @@ module ActiveRecord
MySQL::SchemaCreation.new(self)
end
+ def arel_visitor # :nodoc:
+ Arel::Visitors::MySQL.new(self)
+ end
+
##
# :singleton-method:
# By default, the Mysql2Adapter will consider all columns of type <tt>tinyint(1)</tt>
@@ -55,15 +59,6 @@ module ActiveRecord
def initialize(connection, logger, connection_options, config)
super(connection, logger, config)
- @visitor = Arel::Visitors::MySQL.new self
-
- if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
- @prepared_statements = true
- @visitor.extend(DetermineIfPreparableVisitor)
- else
- @prepared_statements = false
- end
-
if version < '5.0.0'
raise "Your version of MySQL (#{full_version.match(/^\d+\.\d+\.\d+/)[0]}) is too old. Active Record supports MySQL >= 5.0."
end
@@ -335,8 +330,7 @@ module ActiveRecord
def data_source_exists?(table_name)
return false unless table_name.present?
- schema, name = table_name.to_s.split('.', 2)
- schema, name = @config[:database], schema unless name # A table was provided without a schema
+ schema, name = extract_schema_qualified_name(table_name)
sql = "SELECT table_name FROM information_schema.tables "
sql << "WHERE table_schema = #{quote(schema)} AND table_name = #{quote(name)}"
@@ -351,8 +345,7 @@ module ActiveRecord
def view_exists?(view_name) # :nodoc:
return false unless view_name.present?
- schema, name = view_name.to_s.split('.', 2)
- schema, name = @config[:database], schema unless name # A view was provided without a schema
+ schema, name = extract_schema_qualified_name(view_name)
sql = "SELECT table_name FROM information_schema.tables WHERE table_type = 'VIEW'"
sql << " AND table_schema = #{quote(schema)} AND table_name = #{quote(name)}"
@@ -497,6 +490,10 @@ module ActiveRecord
end
def foreign_keys(table_name)
+ raise ArgumentError unless table_name.present?
+
+ schema, name = extract_schema_qualified_name(table_name)
+
fk_info = select_all <<-SQL.strip_heredoc
SELECT fk.referenced_table_name as 'to_table'
,fk.referenced_column_name as 'primary_key'
@@ -504,8 +501,8 @@ module ActiveRecord
,fk.constraint_name as 'name'
FROM information_schema.key_column_usage fk
WHERE fk.referenced_column_name is not null
- AND fk.table_schema = '#{@config[:database]}'
- AND fk.table_name = '#{table_name}'
+ AND fk.table_schema = #{quote(schema)}
+ AND fk.table_name = #{quote(name)}
SQL
create_table_info = create_table_info(table_name)
@@ -572,8 +569,7 @@ module ActiveRecord
def primary_keys(table_name) # :nodoc:
raise ArgumentError unless table_name.present?
- schema, name = table_name.to_s.split('.', 2)
- schema, name = @config[:database], schema unless name # A table was provided without a schema
+ schema, name = extract_schema_qualified_name(table_name)
select_values(<<-SQL.strip_heredoc, 'SCHEMA')
SELECT column_name
@@ -887,6 +883,12 @@ module ActiveRecord
MySQL::TableDefinition.new(*args)
end
+ def extract_schema_qualified_name(string) # :nodoc:
+ schema, name = string.to_s.scan(/[^`.\s]+|`[^`]*`/)
+ schema, name = @config[:database], schema unless name
+ [schema, name]
+ end
+
def integer_to_sql(limit) # :nodoc:
case limit
when 1; 'tinyint'
diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb
index ce2f9f1925..28f0c8686a 100644
--- a/activerecord/lib/active_record/connection_adapters/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/column.rb
@@ -1,5 +1,3 @@
-require 'set'
-
module ActiveRecord
# :stopdoc:
module ConnectionAdapters
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index d7f9378a4e..470e03b0ed 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -125,6 +125,10 @@ module ActiveRecord
PostgreSQL::SchemaCreation.new self
end
+ def arel_visitor # :nodoc:
+ Arel::Visitors::PostgreSQL.new(self)
+ end
+
# Returns true, since this connection adapter supports prepared statement
# caching.
def supports_statement_cache?
@@ -203,14 +207,6 @@ module ActiveRecord
def initialize(connection, logger, connection_parameters, config)
super(connection, logger, config)
- @visitor = Arel::Visitors::PostgreSQL.new self
- if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
- @prepared_statements = true
- @visitor.extend(DetermineIfPreparableVisitor)
- else
- @prepared_statements = false
- end
-
@connection_parameters = connection_parameters
# @local_tz is initialized as nil to avoid warnings when connect tries to use it
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index 786b0ab2ed..985cc06aa0 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -80,20 +80,15 @@ module ActiveRecord
SQLite3::SchemaCreation.new self
end
+ def arel_visitor # :nodoc:
+ Arel::Visitors::SQLite.new(self)
+ end
+
def initialize(connection, logger, connection_options, config)
super(connection, logger, config)
@active = nil
@statements = StatementPool.new(self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 }))
-
- @visitor = Arel::Visitors::SQLite.new self
-
- if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
- @prepared_statements = true
- @visitor.extend(DetermineIfPreparableVisitor)
- else
- @prepared_statements = false
- end
end
def supports_ddl_transactions?
diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb
index f2578f5f96..b397d1fd07 100644
--- a/activerecord/lib/active_record/relation/delegation.rb
+++ b/activerecord/lib/active_record/relation/delegation.rb
@@ -1,4 +1,3 @@
-require 'set'
require 'active_support/concern'
module ActiveRecord
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index b4229cba04..c2662ec476 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -138,7 +138,7 @@ HEADER
table_options = @connection.table_options(table)
tbl.print ", options: #{table_options.inspect}" unless table_options.blank?
- if comment = @connection.table_comment(table)
+ if comment = @connection.table_comment(table).presence
tbl.print ", comment: #{comment.inspect}"
end