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What are collections in Ruby on Rails?

An example of an AI chatbot conversation about Ruby on Rails collections.

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You

What are collections in Ruby on Rails?

MagicBuddy
MagicBuddy

In Ruby on Rails, collections refer to groups of objects that can be manipulated as a single entity, often using ActiveRecord.

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You

Can you give me an example of how to use collections?

MagicBuddy
MagicBuddy

Sure! You can use methods like all, where, and order to retrieve collections of records from the database.

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You

What is the difference between has_many and belongs_to?

MagicBuddy
MagicBuddy

has_many indicates a one-to-many relationship, while belongs_to indicates a many-to-one relationship between models.

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You

How do I iterate over a collection in Rails?

MagicBuddy
MagicBuddy

You can use the each method to iterate over a collection. For example: @users.each do |user| ... end.

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