Class: Traim::Router

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resources) ⇒ Router

Returns a new instance of Router.



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# File 'lib/traim.rb', line 147

def initialize(resources) 
  @status    = nil
  @resources = resources
  @headers   = {}
end

Class Method Details

.resources ⇒ Object 



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# File 'lib/traim.rb', line 153

def self.resources; @resources ||= {} end

Instance Method Details

#action(name) ⇒ Object

Raises:



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# File 'lib/traim.rb', line 212

def action(name)
  raise NotImplementedError unless action = @resource.actions[name] 

  action[:block] = default_actions[name] if action[:block].nil?
  action
end

#create(&block) ⇒ Object 



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# File 'lib/traim.rb', line 160

def create(&block);  @resource.action(:create,  &block) end

#created ⇒ Object 



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# File 'lib/traim.rb', line 140

def created;   @status = 201 end

#default_actions ⇒ Object 



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# File 'lib/traim.rb', line 219

def default_actions
  @default_actions ||= begin 
    actions = {}
    delegator = @resource.model_delegator
    actions["POST"] = lambda do |params|
      delegator.create(params["payload"])
    end
    actions["GET"] = lambda do |params|
      delegator.show(params["id"])
    end
    actions["PUT"] = lambda do |params|
      result = delegator.update(params["id"], params["payload"])
      result
    end
    actions["DELETE"] = lambda do |params|
      delegator.delete(@id)
    end
    actions
  end
end

#destory(&block) ⇒ Object 



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# File 'lib/traim.rb', line 162

def destory(&block); @resource.action(:destory, &block) end

#headers(key, value) ⇒ Object 



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# File 'lib/traim.rb', line 143

def headers(key, value)
  @headers[key] = value 
end

#logger ⇒ Object 



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# File 'lib/traim.rb', line 136

def logger; Traim.logger  end

#model ⇒ Object 



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# File 'lib/traim.rb', line 240

def model;  @resource.model end

#no_cotent ⇒ Object 



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# File 'lib/traim.rb', line 141

def no_cotent; @status = 204 end

#ok ⇒ Object

status code sytax suger



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# File 'lib/traim.rb', line 139

def ok;        @status = 200 end

#record ⇒ Object 



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# File 'lib/traim.rb', line 241

def record; @record; end

#render(request) ⇒ Object 



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# File 'lib/traim.rb', line 243

def render(request)
  method_block = action(request.request_method)
  payload = request.params
  if (method_block[:options][:permit])
    if not_permmited_payload = payload.detect { |key, value| !method_block[:options][:permit].include?(key) }  
      raise BadRequestError.new(message: "Not permitted payload: #{not_permmited_payload}") 
    end
  end
  params = {"payload" => payload}
  params["id"] = @id unless @id.nil?
  @result = @resource.execute(params, &method_block[:block])

  [status, @headers, [to_json]]
end

#resources(name) ⇒ Object 



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# File 'lib/traim.rb', line 155

def resources(name)
  @resources[name]
end

#run(seg, inbox) ⇒ Object 



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# File 'lib/traim.rb', line 164

def run(seg, inbox)  
  begin
    segment = inbox[:segment].to_sym

    if @resource.nil?
      raise BadRequestError unless @resource = resources(segment)
      next
    end 

    if @id.nil? && !defined?(@collection_name)
      if collection = @resource.collections[segment]
        @collection_name = segment
        return instance_eval(&collection)
      else
        @id = segment.to_s.to_i
        @record = @resource.model_delegator.show(@id)
        next 
      end
    end

    if !defined?(@member_name)
      if member = @resource.members[segment]
        @member_name = segment
        return instance_eval(&member)
      end
    end

    raise BadRequestError 
  end while seg.capture(:segment, inbox) 
end

#show(&block) ⇒ Object 



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# File 'lib/traim.rb', line 159

def show(&block);    @resource.action(:show,    &block) end

#status ⇒ Object 



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# File 'lib/traim.rb', line 135

def status; @status || ok end

#to_json ⇒ Object 



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# File 'lib/traim.rb', line 195

def to_json
  if @result.kind_of?(ActiveRecord::Relation)
    hash = @result.map do |object|
      @resource.to_hash(object, @resources) 
    end
    JSON.dump(hash)
  else
    new_hash = {}
    if @result.errors.size == 0
      new_hash = @resource.to_hash(@result, @resources)
    else
      new_hash = @result.errors.messages
    end
    JSON.dump(new_hash)
  end
end

#update(&block) ⇒ Object 



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# File 'lib/traim.rb', line 161

def update(&block);  @resource.action(:update,  &block) end