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Asked: 2026-05-31T19:25:10+00:00

Is there any analog to ActiveRecord’s find_by_ method in Datamapper ex: @user = User.find_by_email(params[:email])

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Is there any analog to ActiveRecord’s find_by_ method in Datamapper
ex: @user = User.find_by_email(params[:email])

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  1. Editorial Team

    According to datamapper documentation and the way I do it, you can do:

    @user = User.first(:email => params[email]) #strictly the same as find_by_email in Activerecord
@user = User.all(:email => params[email]) #strictly the same as find_all_by_email in Activerecord
@user = User.last(:email => params[email]) #no real equivalent in Active Record
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