Question

With a simple model like that

class Model < ActiveRecord::Base
   # ...
end

we can do queries like that

Model.where(["name = :name and updated_at >= :D", \
  { :D => (Date.today - 1.day).to_datetime, :name => "O'Connor" }])

Where the values in the hash will be substituted into the final SQL statement with proper escaping depending on the underlying database engine.

I would like to know a similar feature for SQL execution like:

ActiveRecord::Base.connection.execute( \
    ["update models set name = :name, hired_at = :D where id = :id;"], \
    { :id => 73465, :D => DateTime.now, :name => "O'My God" }] \
  ) # THIS CODE IS A FANTASY. NOT WORKING.

(Please do not solve the example with loading a Model object, modifying and then saving! The example is only an illustration for the feature I would like to have / know. Concentrate on the subject!)

The original problem is that I want to insert large amount (many thousand lines) of data into the database. I want to use some features of the SQL abstraction of the ActiveRecord framework but I don’t want to use model objects based on ActiveRecord::Base because they are damn slow! (8 queries per second for my current problem.)

Answer 1

query = ActiveRecord::Base.connection.raw_connection.prepare("INSERT INTO users (name) VALUES(:name)")
query.execute(:name => 'test_name')
query.close