Popularity
1.7
Declining
Activity
0.0
Stable
9
2
0
Monthly Downloads: 34
Programming language: Elixir
License: MIT License
state_mc alternatives and similar packages
Based on the "State Machines" category.
Alternatively, view state_mc alternatives based on common mentions on social networks and blogs.
-
Machinery
State machine thin layer for structs (+ GUI for Phoenix apps) -
gen_state_machine
An idiomatic Elixir wrapper for gen_statem in OTP 19 (and above).
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README
State Machine for Ecto
State machine pattern in Ecto.
Installation
The package can be installed as:
Add
state_mc
to your list of dependencies inmix.exs
:def deps do [{:state_mc, "~> 0.1.0"}] end
How to use?
Example:
defmodule Example.User do
use Example.Web, :model
import StateMc.EctoSm
schema "users" do
field :state, :string, default: "waiting"
end
statemc :state do
defstate [:waiting, :approved, :rejected]
defevent :approve, %{from: [:waiting, :rejected], to: :approved}, fn(changeset) ->
changeset
|> Example.Repo.update()
end
defevent :reject, %{from: [:waiting, :approved], to: :rejected}, fn(changeset) ->
changeset
|> Example.Repo.update()
end
end
end
How to run?
user = Example.Repo.get(Example.User, 1)
Example.User.current_state(user) # => get current state
Example.User.can_approve?(user) # => check event approve
Example.User.can_reject?(user) # => check event reject
Example.User.approve(user) # => call event approve to change state to approved
Example.User.reject(user) # => call event reject to change state to rejected