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Versions: 31
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Contents
class LinkValidator < ActiveModel::Validator
def validate(record)
govspeak_field_names(record).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 if messages
end
end
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.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
protected
def govspeak_field_names(record)
if record.class.const_defined?(:GOVSPEAK_FIELDS)
record.class.const_get(:GOVSPEAK_FIELDS)
else
[]
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems