Delete object from array of active record

Question

In Rails, I have the following Active Record collection:

@products = Product.all 

I need to skip this collection and remove some objects from it without deleting them from the database. Therefore, using

 @products.each do |product| if CONDITION product.delete end end 

It will not work, as it will also remove the product from the database. Is there a way to remove certain products from this collection without deleting them from the database?

Answer 1

The first question is, if you do not need all the records, then why even return them from the database? Why not use the where clause to filter the results:

@products = Product.where(<CONDITIONS>)

Secondly, if you insist on returning all the results and then filtering, use the .reject block:

@products = Product.all.reject { |p| <CONDITION> }

Answer 2

Since Active Records Collection are arrays, you can use reject! :

 @products.reject! do |product| // your_code end 

If your_code evaluates to true , then product is removed from the collection.