Module: Plaza::RestfulModel

Defined in:
lib/plaza/models/restful_model.rb

Defined Under Namespace

Modules: ClassMethods Classes: ErrorResponse

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



142
143
144
145
146
147
148
149
150
151
152
 
# File 'lib/plaza/models/restful_model.rb', line 142

def method_missing(method_name, *args, &block)
  method_name = method_name.to_s
  if self.respond_to?(method_name + '_id')
    obj_id = self.send(method_name + '_id')
    class_name = Plaza::Inflector.classify(method_name)
    klass = (self.class.name.split('::')[0..-2] + [class_name]).reduce(Module, :const_get)
    return klass.find(obj_id)
  else
    raise NoMethodError.new "undefined method '#{method_name}' for #{self.class}"
  end
end

Class Method Details

.included(base) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/plaza/models/restful_model.rb', line 9

def self.included(base)
  base.class_eval do
    include Virtus.model
    include Plaza::BaseModel
    attribute :id,     Integer
    attribute :errors, Hash

    def serialize
      attrs = attributes.delete_if{|k, v| k.to_sym == :id && v.nil?}
      attrs = attrs.delete_if{|k, v| [:updated_at, :created_at].include?(k.to_sym)}
      attrs.delete(:errors)
      {singular_name => attrs}
    end
  end

  base.extend ClassMethods
end

Instance Method Details

#delete ⇒ Object 



96
97
98
 
# File 'lib/plaza/models/restful_model.rb', line 96

def delete
  self.class.adapter.delete(self.id)
end

#error_messages ⇒ Object 



100
101
102
103
104
105
106
 
# File 'lib/plaza/models/restful_model.rb', line 100

def error_messages
  if errors.empty?
    []
  else
    errors.collect{|k, v| v.collect{|val| "#{k} #{val}"}}.flatten
  end
end

#new_record? ⇒ Boolean

Returns:

  • (Boolean) 


108
109
110
 
# File 'lib/plaza/models/restful_model.rb', line 108

def new_record?
  !persisted?
end

#persisted? ⇒ Boolean

Returns:

  • (Boolean) 


112
113
114
 
# File 'lib/plaza/models/restful_model.rb', line 112

def persisted?
  self.id.present?
end

#plaza_config ⇒ Object 



92
93
94
 
# File 'lib/plaza/models/restful_model.rb', line 92

def plaza_config
  self.class.plaza_config
end

#save ⇒ Object 



116
117
118
119
120
121
122
123
124
125
126
127
 
# File 'lib/plaza/models/restful_model.rb', line 116

def save
  begin
    if self.id
      self.attributes = self.class.adapter.update(self.id, self.serialize)
    else
      self.attributes = self.class.adapter.create(self.serialize)
    end
  rescue Plaza::ResourceInvalid => e
    self.errors.merge!(e.errors)
  end
  self.errors.empty?
end

#symbolize_keys(hash) ⇒ Object 



129
130
131
 
# File 'lib/plaza/models/restful_model.rb', line 129

def symbolize_keys(hash)
  hash.inject({}){|sym_hash,(k,v)| sym_hash[k.to_sym] = v; sym_hash}
end

#to_param ⇒ Object 



133
134
135
 
# File 'lib/plaza/models/restful_model.rb', line 133

def to_param
  self.id
end

#update_attributes(attributes_hash) ⇒ Object 



137
138
139
140
 
# File 'lib/plaza/models/restful_model.rb', line 137

def update_attributes(attributes_hash)
  self.attributes = self.attributes.merge(self.symbolize_keys(attributes_hash))
  self.save
end