Class: StrictLazy::Facade

Inherits:
Object
  • Object
show all
Defined in:
lib/strict_lazy/facade.rb

Overview

The .lazy namespace. Reading record.lazy.x resolves a declared lazy value without ever growing a bare x method on the record itself.

Read order:

1. +@_lazy_<reader>+ already set  -> return it (resolved / eager / group-resolved)
2. +@_batch_<reader>+ present     -> resolve the whole group once, return it
3. no batch and violation :raise  -> UnloadedError (no wasted query)
4. no batch and non-strict        -> degraded single-record resolve (fallback)

Instance Method Summary collapse

Constructor Details

#initialize(record) ⇒ Facade

Returns a new instance of Facade.



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# File 'lib/strict_lazy/facade.rb', line 13

def initialize(record)
  @record = record
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object 



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# File 'lib/strict_lazy/facade.rb', line 21

def method_missing(name, *args)
  loader = loaders[name]
  return super unless loader

  return @record.instance_variable_get(loader.value_ivar) if @record.instance_variable_defined?(loader.value_ivar)

  batch = @record.instance_variable_get(loader.batch_ivar)
  return batch.value_for(@record) if batch

  unloaded(loader)
end

Instance Method Details

#respond_to_missing?(name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/strict_lazy/facade.rb', line 17

def respond_to_missing?(name, include_private = false)
  loaders.key?(name) || super
end