Menu
Suppose a database contains a field 'keywords' and sample records include: "pipe wrench" "monkey wrench" "crescent wrench" "crescent roll" "monkey bars"
is there a way in activerecord to find the records where the keyword field contains the substring "crescent"?
(It's just a quick and dirty lookup for a quick concept prototype)
275
ActiveRecord::Base indicates that the ActiveRecord class or module has a static inner class called Base that you're extending.
Active Record allows you to validate the state of a model before it gets written into the database. There are several methods that you can use to check your models and validate that an attribute value is not empty, is unique and not already in the database, follows a specific format, and many more.
ActiveRecord is an ORM. It's a layer of Ruby code that runs between your database and your logic code. When you need to make changes to the database, you'll write Ruby code, and then run "migrations" which makes the actual changes to the database.
Yeah, just use a LIKE statement in MySQL.
In Rails 2.x:
Table.find(:all, :conditions => ['keywords LIKE ?', '%crescent%']) In Rails 3.x:
Table.where('keywords LIKE ?', '%crescent%').all The Postgres database syntax would be:
YourModelName.where("yourFieldName like ?", "%" + yourSearchTerm + "%") If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
