Getting list of states/events from a model that AASM

Question

I successfully integrated the most recent AASM gem into an application, using it for the creation of a wizard. In my case I have a model order

class Order < ActiveRecord::Base

  belongs_to :user
  has_one :billing_plan, :dependent => :destroy
  named_scope :with_user, ..... <snip>

  include AASM

  aasm_column :aasm_state
  aasm_initial_state :unauthenticated_user

  aasm_state :unauthenticated_user, :after_exit => [:set_state_completed]
  aasm_state : <snip>

  <and following the event definitions>

end

Now I would like to give an administrator the possibility to create his own graphs through the AASM states. Therefore I created two additional models called OrderFlow and Transition where there order_flow has many transitions and order belongs_to order_flow.

No problem so far. Now I would like to give my admin the possibility to dynamically add existing transitions / events to an order_flow graph.

The problem now is, that I do not find any possibility to get a list of all events / transitions out of my order model. aasm_states_for_select seems to be the correct candidate, but I cannot call it on my order model.

Can anyone help?

Thx in advance. J.

score 8 · Answer 1 · answered May 21 '13 at 23:44

8

With version 3.0.18, you can should use ClassName.aasm.states

answered May 21 '13 at 23:44

sguha

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`ClassName.aasm.states.map(&:name)` will get you an Array of Symbols, which may be what you want. – rattray May 16 '16 at 19:05

score 3 · Answer 2 · answered Oct 26 '10 at 15:55

3

I don't understand how OrderFlow works with Order and Transitions, but I assumed you just included that to explain your scenario better.

ClassName.aasm_states_for_select gives you a list of states that is declared in the model.

answered Oct 26 '10 at 15:55

Ramon Tayag

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That's deprecated now. Use `ClassName.aasm.states_for_select`. – Sarah Vessels Aug 29 '14 at 19:14

score 2 · Answer 3 · answered Apr 29 '14 at 19:27

2

For events in 3.1.1 I used Model.aasm.events.keys to get an array of event name symbols. In recent versions .map(&:name) won't do it for you.

answered Apr 29 '14 at 19:27

The Worker Ant

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score 1 · Answer 4 · answered Dec 05 '10 at 03:38

1

also, not 100% sure what you're asking for, but if you want all the states and events declared for your model you could get those by calling Order.aasm_states and Order.aasm_events respectively.

answered Dec 05 '10 at 03:38

hubert

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score 1 · Answer 5 · answered Jan 03 '23 at 14:50

1

In version 5.4.0 this seems to now be an array, so we are back to

Model.aasm.events.map(&:name)

answered Jan 03 '23 at 14:50

aqwan

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score 0 · Answer 6 · answered Nov 05 '12 at 11:22

0

A more elegant Ruby syntax can be used, as in this example in IRB below. You get all the allowable states in an array of symbols.

1.9.3-p0 :011 > ApprovalRequest.aasm_states.map(&:name)

=> [:created, :submitted, :rejected, :approved]

answered Nov 05 '12 at 11:22

Zack Xu

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Getting list of states/events from a model that AASM

6 Answers6