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 11
11:       def add(att, msg)
12:         fetch(att){self[att] = []} << msg
13:       end

Return the total number of error messages.

  errors.count # => 3

[Source]

    # File lib/sequel/model/errors.rb, line 18
18:       def count
19:         values.inject(0){|m, v| m + v.length}
20:       end

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

[Source]

    # File lib/sequel/model/errors.rb, line 23
23:       def empty?
24:         count == 0
25:       end

Returns an array of fully-formatted error messages.

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

[Source]

    # File lib/sequel/model/errors.rb, line 32
32:       def full_messages
33:         inject([]) do |m, kv| 
34:           att, errors = *kv
35:           errors.each {|e| m << (e.is_a?(LiteralString) ? e : "#{Array(att).join(ATTRIBUTE_JOINER)} #{e}")}
36:           m
37:         end
38:       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 45
45:       def on(att)
46:         if v = fetch(att, nil) and !v.empty?
47:           v
48:         end
49:       end

[Validate]