Module: SimplyCouch::Model::FindBy

Includes:
PaginationOptions
Included in:
ClassMethods
Defined in:
lib/simply_couch/model/find_by.rb

Instance Method Summary collapse

Methods included from PaginationOptions

#with_pagination_options

Instance Method Details

#_define_count_by(name, *args) ⇒ Object 



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# File 'lib/simply_couch/model/find_by.rb', line 162

def _define_count_by(name, *args)
  keys = name.to_s.sub(/^count_by_/, "").split("_and_")
  view_name = name.to_s.sub(/^count_/, "").to_sym
  view_keys = keys.length == 1 ? keys.first : keys
  without_deleted_view_name = "#{view_name}_withoutdeleted"
  without_deleted_view_keys = keys + [:deleted_at]

  unless respond_to?(view_name)
    puts "Warning: Defining view #{self.name}##{view_name} with keys #{view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(view_name, key: view_keys)
  end

  if !respond_to?(without_deleted_view_name) && soft_deleting_enabled?
    puts "Warning: Defining view #{self.name}##{without_deleted_view_name} with keys #{without_deleted_view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(without_deleted_view_name, key: without_deleted_view_keys)
  end

  (class << self; self end).instance_eval do
    define_method("#{name}") do |*key_args|
      options = key_args.last.is_a?(Hash) ? key_args.pop : {}
      options.assert_valid_keys(:with_deleted, :keys)
      with_deleted = options.delete(:with_deleted)
      options[:key] = key_args.first if key_args.size == 1
      options[:key] = key_args if key_args.size > 1
      options[:reduce] = true

      if soft_deleting_enabled? && !with_deleted
        options[:key] = Array.wrap(options[:key]) + [nil] # deleted_at
        database.view(send(without_deleted_view_name, options))
      else
        database.view(send(view_name, options))
      end

    end
  end

  send(name, *args)
end

#_define_find_all_by(name, *args) ⇒ Object 



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# File 'lib/simply_couch/model/find_by.rb', line 77

def _define_find_all_by(name, *args)
  raise_when_not_found = name.to_s.end_with?('!')
  name = name.to_s.chop.to_sym if raise_when_not_found
  keys = name.to_s.sub(/^find_all_by_/, "").split("_and_")

  # replace asociation assignments with their property values if possible
  keys.each.with_index do |key, i|
    if properties.find{|p| p.name.to_sym == key.to_sym}.is_a?(SimplyCouch::Model::BelongsTo::Property)
      keys[i] = "#{keys[i]}_id"
    end
  end

  view_name = name.to_s.sub(/^find_all_/, "").to_sym
  count_name = name.to_s.sub(/^find_all_/, 'count_').to_sym
  view_keys = keys.length == 1 ? keys.first : keys
  without_deleted_view_name = "#{view_name}_withoutdeleted"
  without_deleted_view_keys = keys + [:deleted_at]

  unless respond_to?(view_name)
    puts "Warning: Defining view #{self.name}##{view_name} with keys #{view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(view_name, key: view_keys)
  end

  if !respond_to?(without_deleted_view_name) && soft_deleting_enabled?
    puts "Warning: Defining view #{self.name}##{without_deleted_view_name} with keys #{without_deleted_view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(without_deleted_view_name, key: without_deleted_view_keys)
  end

  if raise_when_not_found
    (class << self; self end).instance_eval do
      define_method(:"#{name}!") do |*key_args|
        options = key_args.last.is_a?(Hash) ? key_args.pop : {}
        with_pagination_options(options.update(total_entries: send(count_name, *key_args))) do |options|
          options.assert_valid_keys(:with_deleted, :limit, :skip, :keys)
          with_deleted = options.delete(:with_deleted)

          key_args.map!{|a| a.is_a?(SimplyCouch::Model) ? a.id : a}
          options[:key] = key_args.first if key_args.size == 1
          options[:key] = key_args if key_args.size > 1
          options[:include_docs] = true

          raise ArgumentError, "Too many or too few arguments, require #{keys.inspect}" unless keys.size == key_args.size || options[:keys]

          key_args.map!{|a| a.is_a?(SimplyCouch::Model) ? a.id : a}

          if soft_deleting_enabled? && !with_deleted
            options[:key] = Array.wrap(options[:key]) + [nil] # deleted_at
            result = database.view(send(without_deleted_view_name, options))
          else
            result = database.view(send(view_name, options))
          end
          raise SimplyCouch::RecordNotFound unless result && result.any?
          result
        end
      end
    end
    send(:"#{name}!", *args)
  else
    (class << self; self end).instance_eval do
      define_method(name) do |*key_args|
        options = key_args.last.is_a?(Hash) ? key_args.pop : {}
        with_pagination_options(options.update(total_entries: send(count_name, *key_args))) do |options|
          options.assert_valid_keys(:with_deleted, :limit, :skip, :keys)
          with_deleted = options.delete(:with_deleted)

          key_args.map!{|a| a.is_a?(SimplyCouch::Model) ? a.id : a}
          options[:key] = key_args.first if key_args.size == 1
          options[:key] = key_args if key_args.size > 1
          options[:include_docs] = true

          raise ArgumentError, "Too many or too few arguments, require #{keys.inspect}" unless keys.size == key_args.size || options[:keys]

          if soft_deleting_enabled? && !with_deleted
            options[:key] = Array.wrap(options[:key]) + [nil] # deleted_at
            database.view(send(without_deleted_view_name, options))
          else
            database.view(send(view_name, options))
          end
        end
      end
    end
    send(name, *args)
  end
end

#_define_find_by(name, *args) ⇒ Object 



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# File 'lib/simply_couch/model/find_by.rb', line 5

def _define_find_by(name, *args)
  raise_when_not_found = name.to_s.end_with?('!')
  name = name.to_s.chop.to_sym if raise_when_not_found
  keys = name.to_s.sub(/^find_by_/, "").split("_and_").map(&:to_sym)

  # replace asociation assignments with their property values if possible
  keys.each.with_index do |key, i|
    if properties.find{|p| p.name.to_sym == key.to_sym}.is_a?(SimplyCouch::Model::BelongsTo::Property)
      keys[i] = "#{keys[i]}_id"
    end
  end

  view_name = name.to_s.sub(/^find_/, "").to_sym
  view_keys = keys.length == 1 ? keys.first : keys
  without_deleted_view_name = "#{view_name}_withoutdeleted"
  without_deleted_view_keys = keys + [:deleted_at]


  unless respond_to?(view_name)
    puts "Warning: Defining view #{self.name}##{view_name} with keys #{view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(view_name, key: view_keys)
  end

  if !respond_to?(without_deleted_view_name) && soft_deleting_enabled?
    puts "Warning: Defining view #{self.name}##{without_deleted_view_name} with keys #{without_deleted_view_keys.inspect} at call time, please add it to the class body. (Called from #{caller[1]})"
    view(without_deleted_view_name, key: without_deleted_view_keys)
  end
  if raise_when_not_found
    (class << self; self end).instance_eval do
      define_method(:"#{name}!") do |*key_args|
        options = key_args.last.is_a?(Hash) ? key_args.pop : {}
        options.assert_valid_keys(:with_deleted)
        with_deleted = options.delete(:with_deleted)

        raise ArgumentError, "Too many or too few arguments, require #{keys.inspect}" unless keys.size == key_args.size

        key_args.map!{|a| a.is_a?(SimplyCouch::Model) ? a.id : a}

        if soft_deleting_enabled? && !with_deleted
          key_args = key_args + [nil] # deleted_at
          result = database.view(send(without_deleted_view_name, key: (key_args.size == 1 ? key_args.first : key_args), limit: 1, include_docs: true)).first
        else
          result = database.view(send(view_name, key: (key_args.size == 1 ? key_args.first : key_args), limit: 1, include_docs: true)).first
        end
        raise SimplyCouch::RecordNotFound unless result
        result
      end
    end
    send(:"#{name}!", *args)
  else
    (class << self; self end).instance_eval do
      define_method(name) do |*key_args|
        options = key_args.last.is_a?(Hash) ? key_args.pop : {}
        options.assert_valid_keys(:with_deleted)
        with_deleted = options.delete(:with_deleted)

        raise ArgumentError, "Too many or too few arguments, require #{keys.inspect}" unless keys.size == key_args.size

        key_args.map!{|a| a.is_a?(SimplyCouch::Model) ? a.id : a}

        if soft_deleting_enabled? && !with_deleted
          key_args = key_args + [nil] # deleted_at
          database.view(send(without_deleted_view_name, key: (key_args.size == 1 ? key_args.first : key_args), limit: 1, include_docs: true)).first
        else
          database.view(send(view_name, key: (key_args.size == 1 ? key_args.first : key_args), limit: 1, include_docs: true)).first
        end
      end
    end
    send(name, *args)
  end
end