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- require 'active_record/connection_adapters/abstract/schema_definitions'
-
- module ::ArJdbc
- module MySQL
- def self.column_selector
- [/mysql/i, lambda {|cfg,col| col.extend(::ArJdbc::MySQL::Column)}]
- end
-
- def self.extended(adapter)
- adapter.configure_connection
- end
-
- def configure_connection
- execute("SET SQL_AUTO_IS_NULL=0")
- end
-
- def self.jdbc_connection_class
- ::ActiveRecord::ConnectionAdapters::MySQLJdbcConnection
- end
-
- module Column
- def extract_default(default)
- if sql_type =~ /blob/i || type == :text
- if default.blank?
- return null ? nil : ''
- else
- raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}"
- end
- elsif missing_default_forged_as_empty_string?(default)
- nil
- else
- super
- end
- end
-
- def has_default?
- return false if sql_type =~ /blob/i || type == :text #mysql forbids defaults on blob and text columns
- super
- end
-
- def simplified_type(field_type)
- case field_type
- when /tinyint\(1\)|bit/i then :boolean
- when /enum/i then :string
- when /decimal/i then :decimal
- else
- super
- end
- end
-
- def extract_limit(sql_type)
- case sql_type
- when /blob|text/i
- case sql_type
- when /tiny/i
- 255
- when /medium/i
- 16777215
- when /long/i
- 2147483647 # mysql only allows 2^31-1, not 2^32-1, somewhat inconsistently with the tiny/medium/normal cases
- else
- nil # we could return 65535 here, but we leave it undecorated by default
- end
- when /^bigint/i; 8
- when /^int/i; 4
- when /^mediumint/i; 3
- when /^smallint/i; 2
- when /^tinyint/i; 1
- when /^(bool|date|float|int|time)/i
- nil
- else
- super
- end
- end
-
- # MySQL misreports NOT NULL column default when none is given.
- # We can't detect this for columns which may have a legitimate ''
- # default (string) but we can for others (integer, datetime, boolean,
- # and the rest).
- #
- # Test whether the column has default '', is not null, and is not
- # a type allowing default ''.
- def missing_default_forged_as_empty_string?(default)
- type != :string && !null && default == ''
- end
- end
-
-
- def modify_types(tp)
- # SonarQube
- # Compatibility with mysql 5.7
- # See https://github.com/rails/rails/commit/26cea8fabe828e7b0535275044cb8316fff1c590
- #tp[:primary_key] = "int(11) DEFAULT NULL auto_increment PRIMARY KEY"
- tp[:primary_key] = "int(11) auto_increment PRIMARY KEY"
- # /SonarQube
- tp[:decimal] = { :name => "decimal" }
- tp[:timestamp] = { :name => "datetime" }
- tp[:datetime][:limit] = nil
-
- # SonarQube
- # Ticket http://tools.assembla.com/sonar/ticket/200
- # Problem with mysql TEXT columns. ActiveRecord :text type is mapped to TEXT type (65535 characters).
- # But we would like the bigger MEDIUMTEXT for the snapshot_sources table (16777215 characters).
- # This hack works only for ActiveRecord-JDBC (Jruby use).
- # See http://www.headius.com/jrubywiki/index.php/Adding_Datatypes_to_ActiveRecord-JDBC
- tp[:text] = { :name => "longtext" }
- tp[:binary] = { :name => "longblob" }
- tp[:big_integer] = { :name => "bigint"}
- # /SonarQube
-
- tp
- end
-
- def adapter_name #:nodoc:
- 'MySQL'
- end
-
- def arel2_visitors
- {'jdbcmysql' => ::Arel::Visitors::MySQL}
- end
-
- def case_sensitive_equality_operator
- "= BINARY"
- end
-
- def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key)
- where_sql
- end
-
- # QUOTING ==================================================
-
- def quote(value, column = nil)
- return value.quoted_id if value.respond_to?(:quoted_id)
-
- if column && column.type == :primary_key
- value.to_s
- elsif column && String === value && column.type == :binary && column.class.respond_to?(:string_to_binary)
- s = column.class.string_to_binary(value).unpack("H*")[0]
- "x'#{s}'"
- elsif BigDecimal === value
- "'#{value.to_s("F")}'"
- else
- super
- end
- end
-
- def quoted_true
- "1"
- end
-
- def quoted_false
- "0"
- end
-
- def begin_db_transaction #:nodoc:
- @connection.begin
- rescue Exception
- # Transactions aren't supported
- end
-
- def commit_db_transaction #:nodoc:
- @connection.commit
- rescue Exception
- # Transactions aren't supported
- end
-
- def rollback_db_transaction #:nodoc:
- @connection.rollback
- rescue Exception
- # Transactions aren't supported
- end
-
- def supports_savepoints? #:nodoc:
- true
- end
-
- def create_savepoint
- execute("SAVEPOINT #{current_savepoint_name}")
- end
-
- def rollback_to_savepoint
- execute("ROLLBACK TO SAVEPOINT #{current_savepoint_name}")
- end
-
- def release_savepoint
- execute("RELEASE SAVEPOINT #{current_savepoint_name}")
- end
-
- def disable_referential_integrity(&block) #:nodoc:
- old = select_value("SELECT @@FOREIGN_KEY_CHECKS")
- begin
- update("SET FOREIGN_KEY_CHECKS = 0")
- yield
- ensure
- update("SET FOREIGN_KEY_CHECKS = #{old}")
- end
- end
-
- # SCHEMA STATEMENTS ========================================
-
- def structure_dump #:nodoc:
- if supports_views?
- sql = "SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'"
- else
- sql = "SHOW TABLES"
- end
-
- select_all(sql).inject("") do |structure, table|
- table.delete('Table_type')
-
- hash = show_create_table(table.to_a.first.last)
-
- if(table = hash["Create Table"])
- structure += table + ";\n\n"
- elsif(view = hash["Create View"])
- structure += view + ";\n\n"
- end
- end
- end
-
- def jdbc_columns(table_name, name = nil)#:nodoc:
- sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
- execute(sql, :skip_logging).map do |field|
- ::ActiveRecord::ConnectionAdapters::MysqlColumn.new(field["Field"], field["Default"], field["Type"], field["Null"] == "YES")
- end
- end
-
- def recreate_database(name, options = {}) #:nodoc:
- drop_database(name)
- create_database(name, options)
- end
-
- def create_database(name, options = {}) #:nodoc:
- if options[:collation]
- execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}` COLLATE `#{options[:collation]}`"
- else
- execute "CREATE DATABASE `#{name}` DEFAULT CHARACTER SET `#{options[:charset] || 'utf8'}`"
- end
- end
-
- def drop_database(name) #:nodoc:
- execute "DROP DATABASE IF EXISTS `#{name}`"
- end
-
- def current_database
- select_one("SELECT DATABASE() as db")["db"]
- end
-
- def create_table(name, options = {}) #:nodoc:
- #sonar - force UTF8
- #super(name, {:options => "ENGINE=InnoDB"}.merge(options))
- super(name, {:options => "ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin"}.merge(options))
- #/sonar
- end
-
- def rename_table(name, new_name)
- execute "RENAME TABLE #{quote_table_name(name)} TO #{quote_table_name(new_name)}"
- end
-
- def add_column(table_name, column_name, type, options = {})
- add_column_sql = "ALTER TABLE #{quote_table_name(table_name)} ADD #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
- add_column_options!(add_column_sql, options)
- add_column_position!(add_column_sql, options)
- execute(add_column_sql)
- end
-
- def change_column_default(table_name, column_name, default) #:nodoc:
- column = column_for(table_name, column_name)
- change_column table_name, column_name, column.sql_type, :default => default
- end
-
- def change_column_null(table_name, column_name, null, default = nil)
- column = column_for(table_name, column_name)
-
- unless null || default.nil?
- execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
- end
-
- change_column table_name, column_name, column.sql_type, :null => null
- end
-
- def change_column(table_name, column_name, type, options = {}) #:nodoc:
- column = column_for(table_name, column_name)
-
- unless options_include_default?(options)
- options[:default] = column.default
- end
-
- unless options.has_key?(:null)
- options[:null] = column.null
- end
-
- change_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
- add_column_options!(change_column_sql, options)
- add_column_position!(change_column_sql, options)
- execute(change_column_sql)
- end
-
- def rename_column(table_name, column_name, new_column_name) #:nodoc:
- options = {}
- if column = columns(table_name).find { |c| c.name == column_name.to_s }
- options[:default] = column.default
- options[:null] = column.null
- else
- raise ActiveRecord::ActiveRecordError, "No such column: #{table_name}.#{column_name}"
- end
- current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'")["Type"]
- rename_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(new_column_name)} #{current_type}"
- add_column_options!(rename_column_sql, options)
- execute(rename_column_sql)
- end
-
- def add_limit_offset!(sql, options) #:nodoc:
- limit, offset = options[:limit], options[:offset]
- if limit && offset
- sql << " LIMIT #{offset.to_i}, #{sanitize_limit(limit)}"
- elsif limit
- sql << " LIMIT #{sanitize_limit(limit)}"
- elsif offset
- sql << " OFFSET #{offset.to_i}"
- end
- sql
- end
-
- def show_variable(var)
- res = execute("show variables like '#{var}'")
- row = res.detect {|row| row["Variable_name"] == var }
- row && row["Value"]
- end
-
- def charset
- show_variable("character_set_database")
- end
-
- def collation
- show_variable("collation_database")
- end
-
- def type_to_sql(type, limit = nil, precision = nil, scale = nil)
- return super unless type.to_s == 'integer'
-
- case limit
- when 1; 'tinyint'
- when 2; 'smallint'
- when 3; 'mediumint'
- when nil, 4, 11; 'int(11)' # compatibility with MySQL default
- when 5..8; 'bigint'
- else raise(ActiveRecordError, "No integer type has byte size #{limit}")
- end
- end
-
- def add_column_position!(sql, options)
- if options[:first]
- sql << " FIRST"
- elsif options[:after]
- sql << " AFTER #{quote_column_name(options[:after])}"
- end
- end
-
- protected
- def translate_exception(exception, message)
- return super unless exception.respond_to?(:errno)
-
- case exception.errno
- when 1062
- ::ActiveRecord::RecordNotUnique.new(message, exception)
- when 1452
- ::ActiveRecord::InvalidForeignKey.new(message, exception)
- else
- super
- end
- end
-
- # SONAR - support the length parameter when creating indices
- # See http://jira.sonarsource.com/browse/SONAR-4137
- def quoted_columns_for_index(column_names, options = {})
- length = options[:length] if options.is_a?(Hash)
-
- quoted_column_names = case length
- when Hash
- column_names.map {|name| length[name] ? "#{quote_column_name(name)}(#{length[name]})" : quote_column_name(name) }
- when Fixnum
- column_names.map {|name| "#{quote_column_name(name)}(#{length})"}
- else
- column_names.map {|name| quote_column_name(name) }
- end
- end
- #/SONAR
-
- private
- def column_for(table_name, column_name)
- unless column = columns(table_name).find { |c| c.name == column_name.to_s }
- raise "No such column: #{table_name}.#{column_name}"
- end
- column
- end
-
- def show_create_table(table)
- select_one("SHOW CREATE TABLE #{quote_table_name(table)}")
- end
-
- def supports_views?
- false
- end
- end
- end
-
- module ActiveRecord::ConnectionAdapters
- # Remove any vestiges of core/Ruby MySQL adapter
- remove_const(:MysqlColumn) if const_defined?(:MysqlColumn)
- remove_const(:MysqlAdapter) if const_defined?(:MysqlAdapter)
-
- class MysqlColumn < JdbcColumn
- include ArJdbc::MySQL::Column
-
- def initialize(name, *args)
- if Hash === name
- super
- else
- super(nil, name, *args)
- end
- end
-
- def call_discovered_column_callbacks(*)
- end
- end
-
- class MysqlAdapter < JdbcAdapter
- include ArJdbc::MySQL
-
- def initialize(*args)
- super
- configure_connection
- end
-
- def adapter_spec(config)
- # return nil to avoid extending ArJdbc::MySQL, which we've already done
- end
-
- def jdbc_connection_class(spec)
- ::ArJdbc::MySQL.jdbc_connection_class
- end
-
- def jdbc_column_class
- ActiveRecord::ConnectionAdapters::MysqlColumn
- end
-
- alias_chained_method :columns, :query_cache, :jdbc_columns
- end
- end
-
- module Mysql # :nodoc:
- remove_const(:Error) if const_defined?(:Error)
-
- class Error < ::ActiveRecord::JDBCError
- end
-
- def self.client_version
- 50400 # faked out for AR tests
- end
- end
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