Module: DateQueries::ScopeDefiner

Defined in:
lib/date_queries/definers/scope_definer.rb

Class Method Summary collapse

Class Method Details

.define_birthday_scopes_for(field, klass) ⇒ Object 



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# File 'lib/date_queries/definers/scope_definer.rb', line 8

def self.define_birthday_scopes_for(field, klass)
  define_scopes_without_arguments(field, klass)
  klass.send('scope', :"#{field.to_s.pluralize}_passed", klass.class_eval(
    <<-LAMBDA
      lambda {
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_range(
          field,
          DateTime.new(Date.today.year, 1, 1),
          DateTime.now - 1.day,
          :year
        )
      }
    LAMBDA
  ))

  klass.send('scope', :"#{field.to_s.pluralize}_in_future", klass.class_eval(
    <<-LAMBDA
      lambda {
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_range(
          field,
          DateTime.now,
          DateTime.new(Date.today.year, 12, 31),
          :year
        )
      }
    LAMBDA
  ))

  klass.send('scope', :"#{field.to_s.pluralize}_in", klass.class_eval(
    <<-PROC
      lambda {|start_date, end_date|
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_range(
          field,
          start_date,
          end_date,
          :year
        )
      }
    PROC
  ))
end

.define_scopes_for(field, klass) ⇒ Object 



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# File 'lib/date_queries/definers/scope_definer.rb', line 3

def self.define_scopes_for(field, klass)
  define_scopes_without_arguments(field, klass)
  define_scopes_with_arguments(field, klass)
end

.define_scopes_with_arguments(field, klass) ⇒ Object 



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# File 'lib/date_queries/definers/scope_definer.rb', line 90

def self.define_scopes_with_arguments(field, klass)

  # #{field}_before(dateTime)
  klass.send('scope', :"#{field.to_s.pluralize}_after", klass.class_eval(
    <<-LAMBDA
      lambda {|end_date|
        where("#{field} < ?", end_date)
      }
    LAMBDA
  ))

  # #{field}_after(dateTime)
  klass.send('scope', :"#{field.to_s.pluralize}_after", klass.class_eval(
    <<-LAMBDA
      lambda {|start_date|
        where("#{field} > ?", start_date)
      }
    LAMBDA
  ))

  # #{field}_in_range(start_date, end_date, *skip_args)
  klass.send('scope', :"#{field.to_s.pluralize}_in_range", klass.class_eval(
    <<-PROC
      proc { |start_date, end_date, *skip_args|
        # creating the scope like
        raise ArgumentError, 'Provide at-least one date.' unless start_date.present?
        raise ArgumentError, 'Invalid arguments in dates, end date is not greater than start date.' if end_date.present? and end_date < start_date
        raise ArgumentError, "can not skip all date, month and year" if ([:year, :month, :date] - skip_args).blank?

        if end_date
          if skip_args.blank?
            # condition without skipping parameters
            where("#{field} BETWEEN :start_date AND :end_date", :start_date => start_date, :end_date => end_date)
          else
            # conditions with skipped parameters
            where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_range(field, start_date, end_date, *skip_args)
          end
        else
          # conditions with single date
          where("#{field} = ?", start_date)
        end
      }
    PROC
  )
)
end

.define_scopes_without_arguments(field, klass) ⇒ Object 



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# File 'lib/date_queries/definers/scope_definer.rb', line 50

def self.define_scopes_without_arguments(field, klass)
  # #{field}_in_this_year
  klass.send('scope', :"#{field.to_s.pluralize}_in_this_year", klass.class_eval(
    <<-LAMBDA
      lambda {
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_current_time(
          field,
          Date.today,
          :date, :month
        )
      }
    LAMBDA
  ))

  # #{field}_in_this_month
  klass.send('scope', :"#{field.to_s.pluralize}_in_this_month", klass.class_eval(
    <<-LAMBDA
      lambda {
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_current_time(
          field,
          Date.today,
          :date, :year
        )
      }
    LAMBDA
  ))

  # #{field}_is_today
  klass.send('scope', :"#{field.to_s}_is_today", klass.class_eval(
    <<-LAMBDA
      lambda {
        where ::DateQueries::Adapter.adapter_for(self.connection).condition_string_for_current_time(
          field,
          Date.today
        )
      }
    LAMBDA
  ))
end