Class: Hubbado::Sequence::Pipeline

Inherits:
Object
  • Object
show all
Defined in:
lib/hubbado/sequence/pipeline.rb

Overview

Railway-style step runner that backs the Sequencer mixin’s ‘pipeline(ctx)` helper. Not part of the public API — sequencers reach it through the helper.

Instance Method Summary collapse

Constructor Details

#initialize(ctx, dispatcher:) ⇒ Pipeline

Returns a new instance of Pipeline.



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# File 'lib/hubbado/sequence/pipeline.rb', line 7

def initialize(ctx, dispatcher:)
  @ctx = ctx
  @trail = []
  @failed_result = nil
  @dispatcher = dispatcher
end

Instance Method Details

#invoke(name, *args, **kwargs) ⇒ Object

‘invoke(:name, *args, **kwargs)` calls a declared dependency on the dispatcher: gets it via `dispatcher.send(name)` (the reader), then invokes it with `(ctx, *args, **kwargs)`. Same trail recording, failure short-circuiting, and lenient return convention as `step`.

Use this for any declared dependency — macros (‘Macros::Model::Find`) and nested sequencers (`Seqs::Present`) alike. Use `step` for local instance methods like `def deserialize_contract(ctx)`.



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# File 'lib/hubbado/sequence/pipeline.rb', line 35

def invoke(name, *args, **kwargs)
  return self if @failed_result

  record(name, invoke_dependency(name, args, kwargs))
  self
end

#result ⇒ Object 



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# File 'lib/hubbado/sequence/pipeline.rb', line 57

def result
  if @failed_result
    @failed_result
  else
    Result.ok(@ctx, trail: @trail.dup)
  end
end

#step(name) ⇒ Object

‘step(:name)` dispatches to `dispatcher.send(name, ctx)`. The method is treated as successful unless it explicitly returns a failed `Result`; any other return value (nil, false, a model, `Result.ok`) continues the pipeline with the same ctx. Only `Result.fail(…)` / `failure(ctx, code: …)` short-circuits.



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# File 'lib/hubbado/sequence/pipeline.rb', line 19

def step(name)
  return self if @failed_result

  record(name, invoke_step(name))
  self
end

#transaction ⇒ Object 



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# File 'lib/hubbado/sequence/pipeline.rb', line 42

def transaction
  return self if @failed_result

  if defined?(::ActiveRecord::Base)
    ::ActiveRecord::Base.transaction do
      yield(self)
      raise ::ActiveRecord::Rollback if @failed_result
    end
  else
    yield(self)
  end

  self
end