Module: Extensions::OpenStruct

Defined in:
lib/baltix/extensions.rb

Instance Method Summary collapse

Instance Method Details

#compact ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 134

def compact
   select { |_, value| !value.blank? }
end

#deep_dup ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 164

def deep_dup
   self.reduce({}.to_os) do |r, x, y|
      r[x] = y.respond_to?(:deep_dup) ? y.deep_dup : y.dup

      r
   end
end

#deep_merge(other_in, options_in = {}) ⇒ Object

deep_merge deeply merges the Open Struct hash structure with the other_in enumerating it key by key. options are the options to change behaviour of the method. It allows two keys: :mode, and :dedup :mode key can be :append, :prepend, or :replace, defaulting to :append, when mode is to append, it combines duplicated keys’ values into an array, when :prepend it prepends an other value before previously stored one unlike for :append mode, when :replace it replace duplicate values with a last ones. :dedup key can be true, or false. It allows to deduplicate values when appending or prepending values. Examples:

open_struct.deep_merge(other_open_struct)
open_struct.deep_merge(other_open_struct, :prepend)



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# File 'lib/baltix/extensions.rb', line 182

def deep_merge other_in, options_in = {}
   return self if other_in.nil? or other_in.blank?

   options = { mode: :append }.merge(options_in)

   other =
      if other_in.is_a?(::OpenStruct)
         other_in.deep_dup
      elsif other_in.is_a?(::Hash)
         other_in.to_os
      else
         ::OpenStruct.new(nil => other_in)
      end

   other.reduce(self.to_os) do |res, key, value|
      res[key] =
         if res.table.keys.include?(key)
            case value
            when ::Hash
               value.deep_merge(res[key].to_h, options)
            when ::OpenStruct
               value.deep_merge(res[key].to_os, options)
            when ::Array
               value.concat([res[key]].compact.flatten(1))
            when ::NilClass
               res[key]
            else
               value_out =
                  if options[:mode] == :append
                     [value, res[key]].compact.flatten(1)
                  elsif options[:mode] == :prepend
                     [res[key], value].compact.flatten(1)
                  else
                     value
                  end

               if value_out.is_a?(Array) && options[:dedup]
                  value_out.uniq
               else
                  value_out
               end
            end
         else
            value
         end

      res
   end
end

#each(*args, &block) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 138

def each *args, &block
   self.each_pair(*args, &block)
end

#find(&block) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 152

def find &block
   select(&block).first
end

#map(*args, &block) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 114

def map *args, &block
   res = self.class.new

   self.each_pair do |key, value|
      res[key] = block[key, value]
   end

   res
end

#merge(other) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 110

def merge other
   ::OpenStruct.new(self.to_h.deep_merge(other.to_h))
end

#merge_to(other) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 106

def merge_to other
   ::OpenStruct.new(other.to_h.deep_merge(self.to_h))
end

#reduce(default = nil, &block) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 142

def reduce default = nil, &block
   res = default

   self.each_pair do |key, value|
      res = block[res, key, value]
   end

   res
end

#replace(new_os) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 156

def replace new_os
   self.to_h.keys.each {|x| self[x] = nil }

   new_os.to_os.each {|x, v| self[x] = v }

   self
end

#select(&block) ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 124

def select &block
   res = self.class.new

   self.each_pair do |key, value|
      res[key] = value if block[key, value]
   end

   res
end

#to_os ⇒ Object 



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# File 'lib/baltix/extensions.rb', line 102

def to_os
   self
end