I am kind of new to backbone and I am building a grid using backgrid which uses backbone.
I have a grid which you can sort and fillter with 4 or 5 different fillters and also paging.
I came to the point where I want that after the user filtered sorted and went to a diffrent url but then clicked the back button he will come to the last grid he created with the filtering sorting and paging. I couldn't find some examples I can use for this all I found is than backbones history pushstate can keep track of one action but how can it handle a few of them together?
Can you guide me on how should I do it?
Related
I'm new to AngularJS, and i'm want to know what's the best and easiest practices to do this simple shop list application.
So this is my shop:
I got three servers in my select input. Each server got own list of items, displayed in another component.
I'm thinking about creating routes with variables like localhost:4200/shop/{server1} which gonna show my list of items based on url path. Select option will just change path in my application to show shop list for specific server.
Is it a good practice, or there is better and easier solution to implement this simple shop application?
If you're asking if filtering data with routing is a good practice with Angular, I can say that it is not a bad one. Here's a link to the official Angular documentation about routing : Angular - Routing
But if you're asking if it is the only way to filter data or spread parameters, the answer is clearly no. Angular projects are SPA (Single Page Application), so you can do everything without touching the url.
For a quick example, you can attach a (click) event on your elements that display the shop list you want
I think you can use just one component and three different click events to display three different results. One component can work in your case. Using a router and routing logic for your requirement will be a costly affair. Your user will have a better application feel if these are covered in just one component and with three different click events.
I have an app where the menu system is built dynamically using metadata fetched at startup. Based on this data, and menu selections, I need to craft a "filter box" where user can input search criteria. The "main" View consists of a filter box plus a search results panel where result(s) are rendered in accordance with their classes.
Can I model the Filter Box as a Backbone.js Model? It does not have any data fetches from the backend as its composition depends entirely on the menu selections + the metadata? E.g. when user selects "Sales" menu then the filter box might prompt for "Sales Order Number" whereas when user selects "Material" then the filter box might prompt for something else.
I would then use this widget as component of the "main" View, along with a set of results views made up on the fly. As users make their menu selections, this main View will un-render the existing filter box and recompute and re-render a new one. Other components on the screen could query the Filter Box for its settings.
The examples I have seen so far always have a url and a server fetch, save, etc. The only url-free example on the tutorial page says it is a "contrived" example. I was wondering if a backend provider is necessary and programming will be full of gotchas without conforming to this requirement.
Thanks.
You can have models without url property defined. One of the building blocks of Backbone is the Sync object, that will help you when pulling and pushing data, ideally from/to REST endpoints. For this to work you need to tell where the data are served, and to do so you set a value to url on Models or Collections.
If you don't need server comunication but you just want to use the utilities provided by simple Model or Collection (such as event handling, filtering, etc..) you just don't set url and you are good to go (just keep in mind that methods like fetch or save won't work).
Yes you can use Backbone for your DOM logic too. A model doesn't need to represent data from the server. Do whatever you like with the few basic elements of Backbone, simply use them when you feel like it'd do a great job :)
I'm diving into the whole "single page application" and Backbone.js (specifically Marionette) stuff. I'm working on a decently complicated application. I'm wondering how you set up the router to handle nested views so the "containing views" are also rendered. For instance let's say I have an Admin section and under that I have a Users section. Under Users I have tabs to "Add User" and "Search Users".
If I've selected "Add User", I imagine my URL has the fragment "#admin/users/add". That routes to a view that has the add user form. However, if you go directly to that URL I want to show that form again, but also the top navigation bar with "Admin" highlighted, the admin specific sidebar with my admin navigation and have "Users" button highlighted. I need the whole HTML page, not just the Add User ItemView.
How to do say when the page first loads (refresh or from a bookmark), to load the html structure and "parent views" as well? Thanks!
This is the way you need to think about the app's behavior:
the controller needs to create view instances and pass in the data they need (models, collections, etc.), and then display the views within the regions
the ONLY thing the router does is is match a URL to a controller action (i.e. "if this URL is entered in the address bar, the application should launch this controller action")
So bascially, this is your problem: you're missing a controller action (e.g. MyApp.AdminApp.Users.New.newUser() which will render the views you want, which you can then call from your router...)
One thing that helps (although not related to the problem you're currently facing), is to always call the navigate method with trigger: false (which is the default). This ensures that your app is behaving properly and that the router is limited to matching URLs to controller actions.
Regarding the menu (with highlighted current entry), I would make it a separate Marionette module (https://github.com/marionettejs/backbone.marionette/blob/master/docs/marionette.application.module.md), and have a collection of models (that don't get saved on the server) to list your menu entries. That way, you can manage the current entry by setting its model activeattribute to true (and checking that attribute in the view to highlight the current entry).
This is probably a lot to take in at first, but after a few more hours of working with Marionette it will all make sense...
(Shameless plug: I'm writing a book on Marionette that takes you from beginner to fully independent with Marionette. In there, I'll be covering this type of functionality, especially the menu management and how to highlight the current option. If you'd like to check it out, there's a free 55-page sample at http://samples.leanpub.com/marionette-gentle-introduction-sample.pdf and the book (which is still being written) is at https://leanpub.com/marionette-gentle-introduction)
I had the same question a time ago, what I strongly recommend is to get involved with Marionette layouts, collections, composite and collection views, regions and how to display content within templates.
Is not hard as you keep reading tutorials, I recommend reading lostechis.com which is a very educational blog from the creator of Marionette, Derick Bailey, also the Marionette Official website.
This is just about educating yourself doing tests and when some question comes to your mind search it and if not found dont doubt to ask it right here.
For the side bar and some other stuff you can just use JQuery-ui or Twitter bootstrap, it is very easy to integrate them with backbone/marionette views, but you just have to read to achieve that.
Which you luck.
[EDIT]
Similar question to Complex nesting of partials and templates
As of now, is it better to use Angular-UI state solution or should I stick with ng-includes ?
So far I had one view per URL in my AngularJS application. I need to build a new view, which should have 3 tabs and I'm having troubles trying to figure out how I'm going to design the view - architecture-wise that is.
Note that the business model object behind these 3 tabs is the same one.
The first tab is for viewing and editing data on the business object. So that's already two 'views' within the first tab.
The second tab is for viewing a paged-table showing data from a child collection of the business object.
The third tab does the same thing as the second one but for another child collection.
Obviously, I do not want to load the entire business object at once. I'll load the collections only if the user navigates to the 2nd or 3rd tabs.
My main concern right now is how am I going to organize the views ? AngularJS has this limitation of only 1-view per page.
Also, I need to handle browser history, so the URL must change when a tab is selected, but I should have to reload any data (i.e I must not reload the controller).
Any tips would be much appreciated.
For the record, I ended up using ui-router and its state management, which is awesome. It took me a bit of time to understand the concepts and to put that in practice, but I managed to build a pretty complex set of layouts effortlessly !
I am developing a JavaScript heavy single page app with Backbone.js. The goal is as follows;
The user starts with a set of multiselect boxes which are populated with filter elements to query a set of resources. These multiselect boxes are dependent of eachother. Furthermore, the elements in the multiselects are queried from the server and depend on the user that is logged in, in other words they depend on the resources that are associated with the user that is logged in.
The user fills out the multiselect boxes and presses a "filter" button. When this is pressed a collection is fetched, thereby using a set of query parameters (multiple array values) to get the set that reflects the filter elements.
When the collection is fetched the view with the resources appear. This view has multiple subviews, and it must be possible to drill down on specific resources while maintaining state (the collection that is fetched as a result of the query parameters)
How to maintain state in a Backbone app in such a use case? I've looked through many examples but all are to simple to be useful.
I am new to backbone.js and trying to develop a single-page app using Backbone.js. In my limited understanding of backbone.js documentation, I did not come across a better way of maintaining state using backbone.js core. However, in the past, I have worked with jStorage: http://www.jstorage.info/ , a simple wrapper plugin for Prototype, MooTools and jQuery to cache data (string, numbers, objects, even XML nodes) on browser side. It is simple to integrate and get started. In my app, I am going to use this for the time being... I thought this could be shared...hence I mention it here when I came across this question... I hope this would be of some help