Class: Persistors::ArrayStore

Inherits:
Store show all
Defined in:
lib/volt/models/persistors/array_store.rb

Instance Method Summary collapse

Methods inherited from Store

#change_channel_connection, #initialize, #read_new_model

Methods inherited from Base

#changed, #event_added, #event_removed

Constructor Details

This class inherits a constructor from Persistors::Store

Instance Method Details

#added(model) ⇒ Object

When a model is added to this collection, we call its “changed” method. This should trigger a save.



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# File 'lib/volt/models/persistors/array_store.rb', line 53

def added(model)      
  unless $loading_models
    model.persistor.changed
  end
  
  if model.persistor
    # Tell the persistor it was added
    model.persistor.add_to_collection
  end
end

#channel_name ⇒ Object 



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# File 'lib/volt/models/persistors/array_store.rb', line 46

def channel_name
  @model.path[-1]
end

#loaded ⇒ Object

Called when a collection loads



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# File 'lib/volt/models/persistors/array_store.rb', line 7

def loaded
  scope = {}



  # Scope to the parent
  if @model.path.size > 1
    parent = @model.parent
    
    parent.persistor.ensure_setup if parent.persistor
    puts @model.parent.inspect
    
    if parent && (attrs = parent.attributes) && attrs[:_id].true?
      scope[:"#{@model.path[-3].singularize}_id"] = attrs[:_id]
    end
  end
  
  puts "Load At Scope: #{scope.inspect}"
  
  query(scope)
  
  change_channel_connection('add', 'added')
  change_channel_connection('add', 'removed')
end

#query(query) ⇒ Object 



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# File 'lib/volt/models/persistors/array_store.rb', line 32

def query(query)
  @tasks.call('StoreTasks', 'find', @model.path.last, query) do |results|
    # TODO: Globals evil, replace
    $loading_models = true
    
    new_options = @model.options.merge(path: @model.path + [:[]], parent: @model)
    
    results.each do |result|
      @model << Model.new(result, new_options)
    end
    $loading_models = false
  end
end

#removed(model) ⇒ Object 



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# File 'lib/volt/models/persistors/array_store.rb', line 64

def removed(model)      
  if model.persistor
    # Tell the persistor it was removed
    model.persistor.remove_from_collection
  end
  
  if $loading_models
    return
  else
    puts "delete #{channel_name} - #{model.attributes[:_id]}"
    @tasks.call('StoreTasks', 'delete', channel_name, model.attributes[:_id])
  end
end