class Blacklight::NestedOpenStructWithHashAccess
An OpenStruct refinement that converts any hash-keys into additional instances of NestedOpenStructWithHashAccess
Attributes
Public Class Methods
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 13 def initialize(klass, hash = {}) @nested_class = klass value = hash.each_with_object({}) do |(k, v), h| h[k] = if v.is_a? Hash nested_class.new({ key: k.to_sym }.merge(v)) else v end end super(value) set_default_proc! end
Public Instance Methods
Add an new key to the object, with a default default
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 29 def << key @table[key] end
Add a new key/value to the object; if it’s a Hash, turn it into another NestedOpenStructWithHashAccess
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 36 def []=(key, value) if value.is_a? Hash send "#{key}=", nested_class.new({ key: key.to_sym }.merge(value)) else super end end
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 63 def deep_dup self.class.new nested_class, @table.deep_dup end
Before serializing, we need to reset the default proc so it can be serialized appropriately
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 47 def marshal_dump h = to_h.dup h.default = nil [nested_class, h] end
After deserializing, we need to re-add the default proc to the internal hash
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 57 def marshal_load x @nested_class = x.first super(x.last) set_default_proc! end
Merge the values of this OpenStruct with another OpenStruct or Hash @param [Hash,#to_h] other_hash @return [OpenStructWithHashAccess] a new instance of an OpenStructWithHashAccess
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 75 def merge other_hash self.class.new nested_class, to_h.merge((other_hash if other_hash.is_a? Hash) || other_hash.to_h) end
Merge the values of another OpenStruct or Hash into this object @param [Hash,#to_h] other_hash @return [OpenStructWithHashAccess] a new instance of an OpenStructWithHashAccess
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 83 def merge! other_hash @table.merge!(nested_class, (other_hash if other_hash.is_a? Hash) || other_hash.to_h) end
Override method_missing
from OpenStruct to ensure the default_proc logic gets triggered.
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 90 def method_missing(mid, *args, **kwargs, &block) len = args.length res = if mid.to_s.end_with?('!') m = mid[0...-1].to_sym new_ostruct_member!(m) @table[m] elsif mid.to_s.end_with?('=') m = mid[0...-1].to_sym new_ostruct_member!(m) @table[m] = args.first elsif len.positive? || kwargs.any? || block new_ostruct_member!(mid) @table[mid] = nested_class.new(key: mid, **(args.first || {}), **kwargs) else @table[mid] end block&.call(res) res end
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 67 def select(...) self.class.new nested_class, to_h.select(...) end
Private Instance Methods
# File lib/blacklight/nested_open_struct_with_hash_access.rb, line 115 def set_default_proc! self.default_proc = lambda do |hash, key| hash[key] = nested_class.new(key: key) end end