Errors represents validation errors, a simple hash subclass with a few convenience methods.
Assign an array of messages for each attribute on access. Using this message is discouraged in new code, use add to add new error messages, and on to check existing error messages.
# File lib/sequel/model/errors.rb, line 12 def [](k) if has_key?(k) super else Sequel::Deprecation.deprecate('Model::Errors#[] autovivification', 'Please switch to Model::Errors#add to add errors, and Model::Errors#on to get errors') self[k] = [] end end
Adds an error for the given attribute.
errors.add(:name, 'is not valid') if name == 'invalid'
# File lib/sequel/model/errors.rb, line 24 def add(att, msg) fetch(att){self[att] = []} << msg end
Return the total number of error messages.
errors.count # => 3
# File lib/sequel/model/errors.rb, line 31 def count values.inject(0){|m, v| m + v.length} end
Return true if there are no error messages, false otherwise.
# File lib/sequel/model/errors.rb, line 36 def empty? count == 0 end
Returns an array of fully-formatted error messages.
errors.full_messages # => ['name is not valid', # 'hometown is not at least 2 letters']
# File lib/sequel/model/errors.rb, line 45 def full_messages inject([]) do |m, kv| att, errors = *kv errors.each {|e| m << (e.is_a?(LiteralString) ? e : "#{Array(att).join(ATTRIBUTE_JOINER)} #{e}")} m end 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
# File lib/sequel/model/errors.rb, line 58 def on(att) if v = fetch(att, nil) and !v.empty? v end end
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