Class: LinkValidator

Inherits:
ActiveModel::Validator
  • Object
show all
Defined in:
app/validators/link_validator.rb

Instance Method Summary collapse

Instance Method Details

#errors(string) ⇒ Object 



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# File 'app/validators/link_validator.rb', line 14

def errors(string)
  link_regex = %r{
    \[.*?\]           # link text in literal square brackets
    \(                # literal opening parenthesis
       (\S*?)           # containing URL
       (\s+"[^"]+")?    # and optional space followed by title text in quotes
    \)                # literal close paren
    (\{:rel=["']external["']\})?  # optional :rel=external in literal curly brackets.
  }x

  errors = Set.new

  string.gsub(/(“|”)+/, '"').scan(link_regex) do |match|

    if match[0] !~ %r{^(?:https?://|mailto:|/)}
      errors << 'Internal links must start with a forward slash eg [link text](/link-destination). External links must start with http://, https://, or mailto: eg [external link text](https://www.google.co.uk).'
    end
    if match[1]
      errors << %q-Don't include hover text in links. Delete the text in quotation marks eg "This appears when you hover over the link."-
    end
    if match[2]
      errors << 'Delete {:rel="external"} in links.'
    end

  end
  errors.to_a
end

#validate(record) ⇒ Object 



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# File 'app/validators/link_validator.rb', line 4

def validate(record)
  record.class::GOVSPEAK_FIELDS.each do |govspeak_field_name|
    govspeak_field_value = record.read_attribute(govspeak_field_name)
    next if govspeak_field_value.blank?

    messages = errors(govspeak_field_value)
    record.errors[govspeak_field_name] << messages unless messages.blank?
  end
end