ActiveAdmin complaining about ransackable_atttributes

Question

I'm currently trying to migrate to activeadmin 3.0.0, which requires ransackable 4.3.0. This breaking change require to add ransackable_attributes and ransackable_associations as class methods in my models.

I have an Address model that I'm registering with active admin and I'm using the filters like this:

filter :street

I'm defining the ransackable_attributes in the Address model

  def self.ransackable_attributes(auth_object = nil)
    %w[street]
  end

This is supposed to be enough for the filters to work but instead I get an error that has to do with the predicate of the column.

undefined method `street_starts_with' for Ransack::Search<class: Address, base: Grouping <combinator: and>>:Ransack::Search

@dbugger I'm sure that 'street' is a db column for the address model. — Monica Quiros
– Monica Quiros, Commented Nov 14 at 6:47

lmtaq · Accepted Answer · 2025-11-19 21:26:17Z

0

I believe you're probably migrating from MetaSearch gem (Ransack predecessor).

_starts_with is not a predicate available in Ransack. On Ransack, it's just start (see it on the official docs).

_starts_with was the way to go in MetaSearch (ref). This project was already archived in favor of Ransack, it's not maintained anymore.

If you're seeing mentions to _starts_with on your logs, that probably indicates you have an issue with the migration itself (not on the way you're declaring your ransackable attributes).

answered Nov 19 at 21:26

lmtaq

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