ruby-on-railsrubyactiverecordrubygemssinatra-activerecord

Ruby Gem ActiveRecord find method with multiple conditions

I'm building a Sinatra application using three database tables: user, post, and like.
I'd want to run a query that will find an entry in the like table like so:

FIND in like WHERE user_id == params[:user_id] AND post_id == params[:post_id]

(for one condition, I'll be using: Like.find_by_user_id(params[:user_id]))

My Question
How to run a find query with multiple conditions using the ActiveRecord Gem?

Solution

  • Use where:

    Like.where('user_id = ? AND post_id = ?', params[:user_id], params[:post_id])

    or

    Like.where('user_id = :user_id AND post_id = :post_id', params)

    Is important to keep in mind that the paremeters of the where need to be converted to the expected type for example params[:post_id].to_i