between40and2

Paths come with marketing and perception identity purpose, while controller-action is purely technical. Routes decouples these two parts to make it flexible and controller-action reusable.

Tips

Different paths may lead to same controller-action. That is where you need to apply :defaults options to differentiate the paths. controller-action can check params on the defaults. For example, both account creation form and account registration form can share the same accounts#new. :default can be set with usecase: creation or usecase: registration respectively.

:as option is encouraged to apply, so that in your controller or view you can use named path/url to refer to the link. This sets flexibility when you change paths frequently. This is especially handy for routes in engine/plugin, since you cannot predicate how a hosting app set path for engine itself when in use.

No such thing like redirect in route. You can just refer the path to controller-action you want it to be. Example: `root 'cc\t

between40and2

let bear = Array("bear")
let bird = Array("bird")
let diff = bird.difference(from: bear)
let newBird = bear.applying(diff)
print(diff)
print(newBird)

between40and2

func parsingDates() {
    let date = Date.now

    let format = Date.FormatStyle().year().day().month()
    let formatted = date.formatted(format) //  "Jun 7, 2021"

    if let date = try? Date(formatted, strategy: format) {

between40and2

// https://developer.apple.com/videos/play/wwdc2022/110357 

import RegexBuilder

func ~=<T>(pattern :Regex<T> , value:  String) -> Bool {
    do {
        return try pattern.firstMatch(in: value) != nil
    } catch {
        return false
    }

between40and2

I am developing for iOS and RoR. For date time issue, I feel lucky, since both works with ISO 8601. 

By default, Rails 4 returns ISO 8601 format as json output.

On iOS, you should have date format as @"yyyy-MM-dd'T'HH:mm:ssZZZ"



See http://developer.github.com/v3/ (search "ISO")

between40and2

Customizing a model object's JSON representation, first of all, is a business of ActiveRecord::Serialization. You will look at ActiveModel::Serializers::JSON class


https://github.com/rails/rails/blob/master/activemodel/lib/active_model/serializers/json.rb

and then will come back to ActiveModel::Serialization class

https://github.com/rails/rails/blob/master/activemodel/lib/active_model/serialization.rb

between40and2

Do you know, you can access your own rails website on /rails/info/routes , under development environment?

The working house is shown below.

https://github.com/rails/rails/blob/master/railties/lib/rails/info_controller.rb

In turn, ActionDispatch::Routing::RoutesInspector is the real hero. Linked below.

https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/routing/inspector.rb

between40and2

UIStory needs a Procedure to guide it, and story listens to Procedure's events of proceed and complete .
It is UIStory to expose proceedNext method for client to call. While UI will have "next" button to proceed the procedure, too.  

UIStory has a JXUIVCFactory_ProcedureStep .

VCFactory will createVC, setObject:intoVC, and getObject:fromVC, according to step.

Since the kinds of steps are currently limited, the VC types to be used are limited too, therefore manually manageable. 

JXModel_ProcedureStep_ObjectPart_Attribute --- JXUITVDSD_NSArray_Selection (or JXUITVDSD_NSArray_Selection__allowsAddSimpleTextOptions)

between40and2

## Filtering

NSPredicate


## Ordering/Sorting

NSSortDescriptor

between40and2

Controller 和 Filter 互联方案

以ControllerContext为中介，合理利用ViewData。

http://msdn.microsoft.com/en-us/library/system.web.mvc.controllercontext(v=vs.108).aspx


自定义Model类：

UserIntention