Class: Prelude::Preloader
- Inherits:
-
Object
- Object
- Prelude::Preloader
- Defined in:
- lib/prelude/preloader.rb
Instance Method Summary collapse
- #fetch(name, object, *args) ⇒ Object
-
#initialize(klass, records) ⇒ Preloader
constructor
A new instance of Preloader.
Constructor Details
#initialize(klass, records) ⇒ Preloader
Returns a new instance of Preloader.
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# File 'lib/prelude/preloader.rb', line 3 def initialize(klass, records) @klass = klass @records = records @runs = {} end |
Instance Method Details
#fetch(name, object, *args) ⇒ Object
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# File 'lib/prelude/preloader.rb', line 9 def fetch(name, object, *args) method = @klass.prelude_methods.fetch(name) # If this object has a run, return the value if run = run_for(method, args, object) return run[object] end # Choose a batch of the correct size that contains the object we're trying to load, # or use all if we're not batching run = if method.batch_size remaining_records = @records.to_a - resolved_objects_for(method, args) slices = remaining_records.each_slice(method.batch_size) slice = slices.detect { |slice| slice.include?(object) } preload(method, slice, args) else preload(method, @records, args) end # Return the value for this object run[object] end |