Validators

Base

If you worked with Rails, you should know about validates method

Sirius has the same concept for validating models.

All Validators classes in Sirius extend base class: Sirius.Validator and have one property (@msg) and one method validate(value, attr) if validate return false just set @msg with an error.

Sirius in the current moment has the next validators:

• length
• exclusion
• inclusion
• format
• numericality
• presence

How to use

See the example

class Model extends Sirius.BaseModel
  @attrs: ["id", "title", "description"]
  @validate :
    id:
      presence: true,
      numericality: only_integers: true
      inclusion: within: [1..10]
      validate_with:  (value) ->
        #@msg = ....
        true

    title:
      presence: true
      format: with: /^[A-Z].+/
      length: min: 3, max: 7
      exclusion: within: ["Title"]

    description:
      custom: true
      validate_with: (desc) ->
        if desc == "foo"
          true
        else
          @msg = "Description must be foo"
          false

How to define own

First of all, you need to define own validator class:

class UrlValidator extends Sirius.Validator

  validate: (url, attrs) ->
    re = /^(http[s]?:\/\/){0,1}(www\.){0,1}[a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,5}[\.]{0,1}/
    if !re.test(url)
      @msg = "Url not valid"
      false
    else
      true

and then register it:

Sirius.BaseModel.register_validator("url_validator", UrlValidator)

In a model:

class Model extends Sirius.BaseModel
  @attrs: ["url"]
  @validate:
    url: 
      url_validator : true