method

copy_table_contents

Ruby on Rails latest stable (v7.1.3.2) - 0 notes - Class: ActiveRecord::ConnectionAdapters::SQLiteAdapter

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0 (0)
2.2.1 (0)
2.3.8 (0)
3.0.0 (0)
3.0.9 (0)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
7.1.3.4
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v3.2.13) is shown here.

These similar methods exist in v7.1.3.2:

ActiveRecord::ConnectionAdapters::SQLite3Adapter#copy_table_contents

copy_table_contents(from, to, columns, rename = {}) protected

No documentation

This method has no description. You can help the Ruby on Rails community by adding new notes.

Hide source

# File activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb, line 544
        def copy_table_contents(from, to, columns, rename = {}) #:nodoc:
          column_mappings = Hash[columns.map {|name| [name, name]}]
          rename.each { |a| column_mappings[a.last] = a.first }
          from_columns = columns(from).collect {|col| col.name}
          columns = columns.find_all{|col| from_columns.include?(column_mappings[col])}
          quoted_columns = columns.map { |col| quote_column_name(col) } * ','

          quoted_to = quote_table_name(to)
          exec_query("SELECT * FROM #{quote_table_name(from)}").each do |row|
            sql = "INSERT INTO #{quoted_to} (#{quoted_columns}) VALUES ("
            sql << columns.map {|col| quote row[column_mappings[col]]} * ', '
            sql << ')'
            exec_query sql
          end
        end

copy_table_contents

Related methods

Method deprecated or moved

No documentation