Class: Safrano::NilNavigationAttribute

Inherits:
Object
  • Object
show all
Includes:
NavigationInfo, Transitions
Defined in:
lib/odata/navigation_attribute.rb

Overview

Represents a named but nil-valued navigation-attribute of an Entity (usually resulting from a NULL FK db value)

Defined Under Namespace

Modules: Transitions

Constant Summary

Constants included from Transitions

Transitions::ALLOWED_TRANSITIONS

Instance Attribute Summary

Attributes included from NavigationInfo

#nav_name, #nav_parent, #navattr_reflection

Instance Method Summary collapse

Methods included from Transitions

#allowed_transitions, #transition_end, #transition_value

Methods included from Transitions::GetNextTrans::BySimpleDetect

#get_next_transresult

Methods included from NavigationInfo

#set_relation_info

Constructor Details

#initialize ⇒ NilNavigationAttribute

Returns a new instance of NilNavigationAttribute.



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# File 'lib/odata/navigation_attribute.rb', line 81

def initialize
  @allowed_transitions = ALLOWED_TRANSITIONS
end

Instance Method Details

#==(other) ⇒ Object

for testing purpose (assert_equal …)



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# File 'lib/odata/navigation_attribute.rb', line 118

def ==(other)
  (@nav_parent == other.nav_parent) && (@nav_name == other.nav_name)
end

#odata_get(req) ⇒ Object 



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# File 'lib/odata/navigation_attribute.rb', line 86

def odata_get(req)
  if req.walker.media_value
    Safrano::ErrorNotFound.odata_get
  elsif req.accept?(APPJSON)
    [200, EMPTY_HASH, to_odata_json(service: req.service)]
  else # TODO: other formats
    415
  end
end

#odata_post(req) ⇒ Object

create the nav. entity



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# File 'lib/odata/navigation_attribute.rb', line 97

def odata_post(req)
  # delegate to the class method
  @nav_klass.odata_create_entity_and_relation(req,
                                              @navattr_reflection,
                                              @nav_parent)
end

#odata_put(req) ⇒ Object

create the nav. entity



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# File 'lib/odata/navigation_attribute.rb', line 105

def odata_put(req)
  # delegate to the class method
  @nav_klass.odata_create_entity_and_relation(req,
                                              @navattr_reflection,
                                              @nav_parent)
end

#to_odata_json ⇒ Object

empty output as OData json (v2)



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# File 'lib/odata/navigation_attribute.rb', line 113

def to_odata_json(*)
  { 'd' => EMPTY_HASH }.to_json
end