Module: Sequel::Plugins::MoreValidations::InstanceMethods

Defined in:
lib/sequel/plugins/more_validations.rb

Instance Method Summary collapse

Instance Method Details

#validates_at_least_one_of(*cols) ⇒ Object

Ensures that at least one of the passed columns is not null



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# File 'lib/sequel/plugins/more_validations.rb', line 21

def validates_at_least_one_of(*cols)
  self.errors.add(cols.first, "must be set if all of #{cols[1..].join(', ')} are null") unless
    cols.any? { |col| !self[col].nil? }
end

#validates_exactly_one_of(*cols) ⇒ Object

Ensures that one and only one of the passed columns is not null



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# File 'lib/sequel/plugins/more_validations.rb', line 27

def validates_exactly_one_of(*cols)
  self.validates_at_least_one_of(*cols)
  self.validates_mutually_exclusive(*cols)
end

#validates_ip_address(col) ⇒ Object

Ensures the value in the column is an IPAddr or can be parsed as one.



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# File 'lib/sequel/plugins/more_validations.rb', line 33

def validates_ip_address(col)
  return if self[col].respond_to?(:ipv4?)
  begin
    IPAddr.new(self[col])
  rescue IPAddr::Error
    self.errors.add(col, "is not a valid INET address")
  end
end

#validates_mutually_exclusive(*cols) ⇒ Object

Ensures that only one of the passed columns is not null



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# File 'lib/sequel/plugins/more_validations.rb', line 13

def validates_mutually_exclusive(*cols)
  set_cols = cols.find_all { |col| !self[col].nil? }

  self.errors.add(set_cols.first, "is mutually exclusive with other set columns #{set_cols[1..].join(', ')}") if
    set_cols.length > 1
end

#validates_pgrange(col) ⇒ Object

Ensure the value in the column is non-nil, non-empty, and the start is before the end.



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# File 'lib/sequel/plugins/more_validations.rb', line 43

def validates_pgrange(col)
  val = self[col]
  if val.nil?
    self.errors.add(col, "cannot be nil")
    return
  end
  return if val.end > val.begin
  if val.end == val.begin
    self.errors.add(col, "cannot be empty")
    return
  end
  self.errors.add(col, "lower bound must be less than upper bound")
end