Class: Store

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

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Store

Returns a new instance of Store.



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# File 'lib/lazyrecord.rb', line 4

def initialize(name)
  @name = name
  @data = PStore.new("#{@name}.pstore")
  transaction do
    @entities = @data.roots.reject { |entity| entity.include? "current_id" }
  end
end

Instance Method Details

#all(entity_name) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 41

def all(entity_name)
  transaction do
    @data[entity_name]
  end
end

#create_entity(name) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 12

def create_entity(name)
  transaction do
    if @data[name].nil?
      @data[name] = {}
      @data[current_id_key(name)] = 0
    end
  end

  unless @entities.include? name
    @entities << name
  end
end

#current_id_key(entity_name) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 31

def current_id_key(entity_name)
  "#{entity_name}_current_id"
end

#delete(entity_name, id) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 59

def delete(entity_name, id)
  transaction do
    p @data[entity_name]
  end

  transaction do
    @data[entity_name].delete(id)
  end

  transaction do
    p @data[entity_name]
  end
end

#find(entity_name, id) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 25

def find(entity_name, id)
  transaction do
    @data[entity_name][id]
  end
end

#flush! ⇒ Object 



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# File 'lib/lazyrecord.rb', line 73

def flush!
  @entities.each do |entity|
    transaction do
      @data.delete(entity)
      @data.delete(current_id_key(entity))
    end
    create_entity(entity)
  end
end

#next_id(entity_name) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 35

def next_id(entity_name)
  transaction do
    @data[current_id_key(entity_name)] += 1
  end
end

#save(entity_name, record) ⇒ Object 



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# File 'lib/lazyrecord.rb', line 53

def save(entity_name, record)
  transaction do
    @data[entity_name][record.id] = record
  end
end

#transaction ⇒ Object 



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# File 'lib/lazyrecord.rb', line 47

def transaction
  @data.transaction do
    yield
  end
end