methods

问题 I have an ItemsSold model which has the total number of magazines, books, videos, greeting_cards, pens sold for a single day. How do I elegantly return an array with the weekly sold totals for each item for the last arbitrary number of weeks? I have a model file: #items_sold.rb class ItemsSold < ActiveRecord::Base attr_accessible :magazines, :books, :videos, :greeting_cards, :pens, :sold_date end My table is defined as follows: t.integer :magazines t.integer :books t.integer :videos t.integer

问题 Any way to avoid explicitly declaring MyMethodDelegate in a scenario like this? bool MyMethod(string x) { //... } BeginInvoke(new MyMethodDelegate(MyMethod), x); I know about lambdas a-la ()=>MyMethod(x) , however I want to avoid them sometimes as they break edit-and-continue. Edit : just BeginInvoke(MyMethod, x) does not work: The best overloaded method match for 'System.Windows.Forms.Control.BeginInvoke(System.Delegate, params object[])' has some invalid arguments Argument 1: cannot convert

问题 I'm successfully using Soundcloud's widget API, except the setVolume() method is broken :( First, I love the widget, but I'm blown away that after all that amazing work there is no volume control available! People will immediately "back button" out of my site when they hear 100% audio and I can't alter it using setVolume()... I have to get it working or pull it :( Here is what is happening, I have an instance named "widget" (which loads and plays well on the page). widget.bind(SC.Widget

问题 I'm successfully using Soundcloud's widget API, except the setVolume() method is broken :( First, I love the widget, but I'm blown away that after all that amazing work there is no volume control available! People will immediately "back button" out of my site when they hear 100% audio and I can't alter it using setVolume()... I have to get it working or pull it :( Here is what is happening, I have an instance named "widget" (which loads and plays well on the page). widget.bind(SC.Widget

问题 This question already has answers here : Preserving state in an extension method (2 answers) Closed 4 years ago . I'm sure this is a pretty simple task but I'm not entirely sure how to word it into a search query. The best I got was Extension methods and I couldn't understand them or get the syntax right. I'm currently using an assembly that simplifies making mods for GTA V. These assemblies include a Ped "type" with a bunch of methods that are attached to it. What I'm looking for is the

问题 here is a quick question, i have my couple view controllers classes, and have some other classes. i've found my self creating some methods in all of their implementation files, which are doing the same. i would like to write some of my methods in a seperate file, and import this file into my view controllers. therefore, i will be able to run those methods from my current view controller, In case this method will require a change, i will not need to re-write it in all my implementaion files.

问题 In my Python app, I'm using events to communicate between different plugins. Now, instead of registering the methods to the events manually, I thought I might use decorators to do that for me. I would like to have it look like this: @events.listento('event.name') def myClassMethod(self, event): ... I have first tried to do it like this: def listento(to): def listen_(func): myEventManager.listen(to, func) def wrapper(*args, **kwargs): return func(*args, **kwargs) return func return listen_

问题 This is my code and i basically want to add CHANGEBUTTONS to the on click event that looks like @click. <button @click="enviarform2" value="Delete from favorites" style="font-weight: 700;color:#428bca;margin-left:30px;height:30px;border-radius:4px" name="delete" v-else>Delete from favorites</button> <script> new Vue({ el:'#app', data:{ show: true, paletteid : <?=$palette_id;?>, action: "add", action2: "delete", number: "" }, methods: { enviarform: function() { axios.post('/validarfavorite.php

问题 I am seeing this: public static <T,U extends T> AutoBean<T> getAutoBean(U delegate) I know the input class is of U type and AutoBean class is of T type and U extends T is the boundary. But what does <T, mean here? Also, if I am going to write a function to accept the output of getAutoBean, how would you write the function declaration? (i.e. myFunction(getAutoBean(...)), what will the function declaration of myFunction() be?) Thank you! 回答1: It just declares the types that your method deals

问题 This is for Laravel 5.2. I have a method defined as follows in my Users model: public function name() { return "$this->name_first $this->name_last"; } I'm trying to figure out how to use that as part of a query, but it seems like it isn't possible for a somewhat obvious reason: the database doesn't know anything about the method and that makes perfect sense. However, the concept of what I'm trying to achieve makes sense in certain contexts, so I'm trying to see if there's a way to accomplish