activerecord in A Sentence

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    Overriding id on create in Activerecord.

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    2

    How can I set default values in Activerecord?

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    3

    Activerecord: size vs count.

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    4

    Activerecord speed up'where. not' query.

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    5

    Map Activerecord association to custom json format.

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    6

    Let's say there is an Activerecord'Post' and it has many'Comments'.

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    7

    To start using Activerecord, simply define a class that inherits from the Activerecord::Base.

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    8

    How do you write a migration to rename an Activerecord model and its table in Rails?

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    9

    In this example, mongoid is an object mapping for MongoDB and- as many other database gems built for rails- it also inherits from ActiveModel the same way as Activerecord, which provides a common interface for many features such as validations, callbacks, translations, etc.

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