mirror of
https://github.com/codeninjasllc/codecombat.git
synced 2024-11-24 08:08:15 -05:00
251 lines
7.1 KiB
CoffeeScript
251 lines
7.1 KiB
CoffeeScript
storage = require 'lib/storage'
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deltasLib = require 'lib/deltas'
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class CocoModel extends Backbone.Model
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idAttribute: "_id"
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loaded: false
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loading: false
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saveBackups: false
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@schema: null
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getMe: -> @me or @me = require('lib/auth').me
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initialize: ->
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super()
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if not @constructor.className
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console.error("#{@} needs a className set.")
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@markToRevert()
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@addSchemaDefaults()
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@once 'sync', @onLoaded, @
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@on 'error', @onError, @
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@saveBackup = _.debounce(@saveBackup, 500)
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type: ->
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@constructor.className
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clone: (withChanges=true) ->
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# Backbone does not support nested documents
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clone = super()
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clone.set($.extend(true, {}, if withChanges then @attributes else @_revertAttributes))
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clone
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onError: ->
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@loading = false
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onLoaded: ->
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@loaded = true
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@loading = false
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@markToRevert()
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@loadFromBackup()
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getNormalizedURL: -> "#{@urlRoot}/#{@id}"
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set: ->
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res = super(arguments...)
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@saveBackup() if @saveBackups and @loaded and @hasLocalChanges()
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res
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loadFromBackup: ->
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return unless @saveBackups
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existing = storage.load @id
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if existing
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@set(existing, {silent:true})
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CocoModel.backedUp[@id] = @
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saveBackup: ->
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storage.save(@id, @attributes)
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CocoModel.backedUp[@id] = @
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@backedUp = {}
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schema: -> return @constructor.schema
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validate: ->
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result = tv4.validateMultiple(@attributes, @constructor.schema? or {})
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if result.errors?.length
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console.log @, "got validate result with errors:", result
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return result.errors unless result.valid
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save: (attrs, options) ->
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@set 'editPath', document.location.pathname
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options ?= {}
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success = options.success
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options.success = (resp) =>
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@trigger "save:success", @
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success(@, resp) if success
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@markToRevert()
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@clearBackup()
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@trigger "save", @
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return super attrs, options
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fetch: ->
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@jqxhr = super(arguments...)
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@loading = true
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@jqxhr
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markToRevert: ->
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if @type() is 'ThangType'
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@_revertAttributes = _.clone @attributes # No deep clones for these!
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else
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@_revertAttributes = $.extend(true, {}, @attributes)
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revert: ->
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@set(@_revertAttributes, {silent: true}) if @_revertAttributes
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@clearBackup()
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clearBackup: ->
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storage.remove @id
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hasLocalChanges: ->
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not _.isEqual @attributes, @_revertAttributes
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cloneNewMinorVersion: ->
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newData = _.clone @attributes
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clone = new @constructor(newData)
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clone
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cloneNewMajorVersion: ->
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clone = @cloneNewMinorVersion()
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clone.unset('version')
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clone
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isPublished: ->
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for permission in @get('permissions') or []
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return true if permission.target is 'public' and permission.access is 'read'
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false
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publish: ->
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if @isPublished() then throw new Error("Can't publish what's already-published. Can't kill what's already dead.")
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@set "permissions", (@get("permissions") or []).concat({access: 'read', target: 'public'})
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addSchemaDefaults: ->
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return if @addedSchemaDefaults
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@addedSchemaDefaults = true
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for prop, defaultValue of @constructor.schema.default or {}
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continue if @get(prop)?
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#console.log "setting", prop, "to", defaultValue, "from attributes.default"
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@set prop, defaultValue
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for prop, sch of @constructor.schema.properties or {}
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continue if @get(prop)?
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continue if prop is 'emails' # hack, defaults are handled through User.coffee's email-specific methods.
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#console.log "setting", prop, "to", sch.default, "from sch.default" if sch.default?
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@set prop, sch.default if sch.default?
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if @loaded
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@markToRevert()
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@loadFromBackup()
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@isObjectID: (s) ->
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s.length is 24 and s.match(/[a-f0-9]/gi)?.length is 24
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hasReadAccess: (actor) ->
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# actor is a User object
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actor ?= @getMe()
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return true if actor.isAdmin()
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if @get('permissions')?
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for permission in @get('permissions')
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if permission.target is 'public' or actor.get('_id') is permission.target
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return true if permission.access in ['owner', 'read']
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return false
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hasWriteAccess: (actor) ->
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# actor is a User object
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actor ?= @getMe()
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return true if actor.isAdmin()
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if @get('permissions')?
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for permission in @get('permissions')
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if permission.target is 'public' or actor.get('_id') is permission.target
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return true if permission.access in ['owner', 'write']
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return false
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getDelta: ->
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differ = deltasLib.makeJSONDiffer()
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differ.diff @_revertAttributes, @attributes
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getDeltaWith: (otherModel) ->
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differ = deltasLib.makeJSONDiffer()
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differ.diff @attributes, otherModel.attributes
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applyDelta: (delta) ->
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newAttributes = $.extend(true, {}, @attributes)
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jsondiffpatch.patch newAttributes, delta
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@set newAttributes
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getExpandedDelta: ->
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delta = @getDelta()
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deltasLib.expandDelta(delta, @_revertAttributes, @schema())
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getExpandedDeltaWith: (otherModel) ->
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delta = @getDeltaWith(otherModel)
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deltasLib.expandDelta(delta, @attributes, @schema())
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watch: (doWatch=true) ->
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$.ajax("#{@urlRoot}/#{@id}/watch", {type:'PUT', data:{on:doWatch}})
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@watching = -> doWatch
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watching: ->
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return me.id in (@get('watchers') or [])
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populateI18N: (data, schema, path='') ->
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# TODO: Better schema/json walking
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sum = 0
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data ?= $.extend true, {}, @attributes
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schema ?= @schema() or {}
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if schema.properties?.i18n and _.isPlainObject(data) and not data.i18n?
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data.i18n = {}
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sum += 1
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if _.isPlainObject data
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for key, value of data
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numChanged = 0
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numChanged = @populateI18N(value, childSchema, path+'/'+key) if childSchema = schema.properties?[key]
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if numChanged and not path # should only do this for the root object
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@set key, value
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sum += numChanged
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if schema.items and _.isArray data
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sum += @populateI18N(value, schema.items, path+'/'+index) for value, index in data
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sum
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@getReferencedModel: (data, schema) ->
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return null unless schema.links?
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linkObject = _.find schema.links, rel: "db"
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return null unless linkObject
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return null if linkObject.href.match("thang.type") and not @isObjectID(data) # Skip loading hardcoded Thang Types for now (TODO)
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# not fully extensible, but we can worry about that later
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link = linkObject.href
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link = link.replace('{(original)}', data.original)
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link = link.replace('{(majorVersion)}', '' + (data.majorVersion ? 0))
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link = link.replace('{($)}', data)
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@getOrMakeModelFromLink(link)
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@getOrMakeModelFromLink: (link) ->
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makeUrlFunc = (url) -> -> url
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modelUrl = link.split('/')[2]
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modelModule = _.string.classify(modelUrl)
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modulePath = "models/#{modelModule}"
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try
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Model = require modulePath
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catch e
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console.error 'could not load model from link path', link, 'using path', modulePath
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return
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model = new Model()
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model.url = makeUrlFunc(link)
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return model
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setURL: (url) ->
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makeURLFunc = (u) -> -> u
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@url = makeURLFunc(url)
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@
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getURL: ->
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return if _.isString @url then @url else @url()
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module.exports = CocoModel
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