[PATCH] dynamic finders with hash attributes for creation

dynamic finders with hash attributes for creation

Useful.

I came across this looking for functionality like the following:

Tag.find_or_create_by_params(params[:tag])

which I believe would be quite useful and will look into creating a patch for when time permits. Until then, if anyone wants to implement this, please do.

Cheers.

Replying to hasmanyjosh:

This patch enhances dynamic finders to allow finding by a subset of the attributes that are used to instantiate a new object. Attributes are passed in a hash, instead of a positional list. {{{ Tag.find_or_create_by_name(:name => "rails", :creator => current_user) }}} That will either find an existing tag named "rails", or create a new one while setting the user that created it. I haven't implemented this for the non-instantiating cases (find_by_x and find_all_by_x) because I haven't seen a need for that yet. Includes tests and doc updates.

[6420]