Class: Decidim::FileValidatorHumanizer
- Inherits:
-
Object
- Object
- Decidim::FileValidatorHumanizer
- Defined in:
- lib/decidim/file_validator_humanizer.rb
Overview
This class fetches the file validation conditions from the active record model objects which have specific validators and uploaders attached to them. This class is used to convert these validation conditions to a human readable format in the front-end and to simplify the code where these are needed from.
This considers if the validation conditions and the uploader have been set directly to the record being validated or if they should be read from another object in case the PassthruValidator is in charge of the validations.
Instance Method Summary collapse
-
#extension_allowlist ⇒ Object
rubocop: enable Metrics/CyclomaticComplexity.
-
#initialize(record, attribute) ⇒ FileValidatorHumanizer
constructor
A new instance of FileValidatorHumanizer.
-
#max_file_size ⇒ Object
rubocop: disable Metrics/CyclomaticComplexity.
- #messages ⇒ Object
- #uploader ⇒ Object
Constructor Details
#initialize(record, attribute) ⇒ FileValidatorHumanizer
Returns a new instance of FileValidatorHumanizer.
15 16 17 18 19 20 21 |
# File 'lib/decidim/file_validator_humanizer.rb', line 15 def initialize(record, attribute) @record = record @attribute = attribute @passthru_validator ||= record.singleton_class.validators_on( attribute ).find { |validator| validator.is_a?(PassthruValidator) } end |
Instance Method Details
#extension_allowlist ⇒ Object
rubocop: enable Metrics/CyclomaticComplexity
76 77 78 79 80 81 82 |
# File 'lib/decidim/file_validator_humanizer.rb', line 76 def extension_allowlist return unless uploader.respond_to?(:extension_allowlist, true) # It may be a private method in some uploaders which is why we need to use # `#send`. uploader.send(:extension_allowlist) end |
#max_file_size ⇒ Object
rubocop: disable Metrics/CyclomaticComplexity
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
# File 'lib/decidim/file_validator_humanizer.rb', line 51 def max_file_size # First try if the record itself has a file size validator defined. validator = record.singleton_class.validators_on(attribute).find do |v| v.is_a?(::ActiveModel::Validations::FileSizeValidator) end if validator lte = validator.[:less_than_or_equal_to] return lte if lte.is_a?(Numeric) return lte.call(record) if lte.respond_to?(:call) end return unless passthru_validator # If not, check for the same validator from the pass through record. validator = passthru_validator.target_validators(attribute).find do |v| v.is_a?(::ActiveModel::Validations::FileSizeValidator) end return unless validator lte = validator.[:less_than_or_equal_to] return lte if lte.is_a?(Numeric) lte.call(passthru_record) if lte.respond_to?(:call) end |
#messages ⇒ Object
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 |
# File 'lib/decidim/file_validator_humanizer.rb', line 27 def = [] if (file_size = max_file_size) file_size_mb = (((file_size / 1024 / 1024) * 100) / 100).round << I18n.t( "max_file_size", megabytes: file_size_mb, scope: "decidim.forms.file_validation" ) end if (extensions = extension_allowlist) << I18n.t( "allowed_file_extensions", extensions: extensions.join(" "), scope: "decidim.forms.file_validation" ) end end |
#uploader ⇒ Object
23 24 25 |
# File 'lib/decidim/file_validator_humanizer.rb', line 23 def uploader @uploader ||= passthru_uploader || record.attached_uploader(attribute) || record.send(attribute) end |