53 lines
1.4 KiB
CoffeeScript
53 lines
1.4 KiB
CoffeeScript
###
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Crafting Guide - url_params.coffee
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Copyright (c) 2014-2015 by Redwood Labs
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All rights reserved.
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###
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url = require 'url'
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########################################################################################################################
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module.exports = class UrlParams
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constructor: (parseMap, url=null)->
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if not parseMap? then throw new Error 'parseMap is required'
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url ?= window.location.href
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@_parseMap = {}
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for name, options of parseMap
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options.type ?= 'string'
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options.default ?= null
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options.parse = this["_#{options.type}"]
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if not options.parse? then throw new Error "#{options.type} is not a valid type"
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@_parseMap[name] = options
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@parse url
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parse: (urlText)->
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params = url.parse(urlText, true).query
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for name, options of @_parseMap
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value = params[name]
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if value?
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this[name] = options.parse value
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else
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this[name] = options.default
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# Private Methods ##############################################################################
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_boolean: (text)->
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return true if text in ['true', 'yes']
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return false
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_integer: (text)->
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return null unless text?
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result = parseInt text
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return null unless _.isNumber result
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return result
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_string: (text)->
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return text
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