Class Sequel::Model::Errors
In: lib/sequel/model/errors.rb
Parent: ::Hash

Errors represents validation errors, a simple hash subclass with a few convenience methods.

Methods

add   count   empty?   full_messages   on  

Constants

ATTRIBUTE_JOINER = ' and '.freeze

Public Instance methods

Adds an error for the given attribute.

  errors.add(:name, 'is not valid') if name == 'invalid'

[Source]

    # File lib/sequel/model/errors.rb, line 13
13:       def add(att, msg)
14:         fetch(att){self[att] = []} << msg
15:       end

Return the total number of error messages.

  errors.count # => 3

[Source]

    # File lib/sequel/model/errors.rb, line 20
20:       def count
21:         values.inject(0){|m, v| m + v.length}
22:       end

Return true if there are no error messages, false otherwise.

[Source]

    # File lib/sequel/model/errors.rb, line 25
25:       def empty?
26:         count == 0
27:       end

Returns an array of fully-formatted error messages.

  errors.full_messages
  # => ['name is not valid',
  #     'hometown is not at least 2 letters']

If the message is a Sequel::LiteralString, it will be used literally, without the column name:

  errors.add(:name, Sequel.lit("Album name is not valid"))
  errors.full_messages
  # => ['Album name is not valid']

[Source]

    # File lib/sequel/model/errors.rb, line 40
40:       def full_messages
41:         inject([]) do |m, kv| 
42:           att, errors = *kv
43:           errors.each {|e| m << (e.is_a?(LiteralString) ? e : "#{Array(att).join(ATTRIBUTE_JOINER)} #{e}")}
44:           m
45:         end
46:       end

Returns the array of errors for the given attribute, or nil if there are no errors for the attribute.

  errors.on(:name) # => ['name is not valid']
  errors.on(:id) # => nil

[Source]

    # File lib/sequel/model/errors.rb, line 53
53:       def on(att)
54:         if v = fetch(att, nil) and !v.empty?
55:           v
56:         end
57:       end

[Validate]