backbone.js - multiple matching routes -

-

i've got backbone.js application defines 2 controllers, , controllers both define route patterns match location.hash. i'm having trouble getting both of them fire - e.g.

managercontroller = backbone.controller.extend({    routes: {       ":name":      "dostuff"    },     dostuff : function(name) {       console.log("dostuff called...");    } });  component1controller = backbone.controller.extend({    routes: {       "xyz123":      "domorestuff"    },     domorestuff : function() {       console.log("domorestuff called...");    } });

so if url "http://mysite.com/#xyz123", seeing 'dostuff()' called, or if comment out route, 'domorestuff()' called. not both.

i'm using architecture because page highly component oriented, , each component defines own controller. 'component manager' defines controller house keeping on routes.

should able configure 2 controllers both respond same route? cheers,

colin

short answer: no, can't that. 1 controller per page.

long answer: when instantiate new controller, adds routes history singleton. history singleton monitoring hash component of url, , when hash changes, scans routes first expression matches needs. fires function associated route (that function has been bound controller in declared). fire once, , if there conflict order in fires formally indeterminate. (in practice it's deterministic.)

philosophical answer: controller "view" object affects presentation of whole page based on hash component of url. purpose provide bookmark-capable urls user can reach in future, when goes url can start pre-selected view among many. description, sounds you're manipulating publicly exposed, manually addressable item manipulate different parts of viewport, while leaving others alone. that's not how works.

one of nice things backbone if pass route that's regular expression, use as-is. if you're trying use controller create bookmarkable description of layout (component 1 in upper right hand corner in display mode "a", component 2 in upper left corner in display mode "b", etc) can suggest number of alternatives-- allocate each 1 namespace in hash part of url, , create routes ignore rest, i.e.

routes: {     new regexp('^([^\/]*)/.*$'): 'docomponent1stuff',     new regexp('^[^\/]*/([^\/]*)\/.*$': 'docomponent2stuff', }

see how first uses items after first slash, second after second slash, etc. can encode magic entirely how want.

i suggest, though, if you're going doing , feel of components, , want reasonably persistent, views getting , setting cookies local store; if they're small enough, cookies enough.


Comments

Post a Comment

Popular posts from this blog

c# - How to set Z index when using WPF DrawingContext? -

-
how set z-index drawing object when using drawingcontext.drawxxx() methods? the object drawn last have higher z index. can't change index of drawn objects. way draw in order. if using wpf (as placed tag), can use, example, canvas control. create shapes need like polyline obj = new polyline(); //... // ... set properties of obj and add them canvas uielementcollection: yourcanvasname.children.add(obj); //or yourcanvasname.children.insert(i, obj); first items of collection have higher z index. advantages in way: no need redraw on window changes, can anytime move objects , change order.
Read more

razor - Is this a bug in WebMatrix PageData? -

-
i think may have found bug in webmatrix's pagedata, not sure. concerns how pass data partial page calling page. in webmatrix documentation (tutorials, e.g. " 3 - creating consistent look ", , example code), pagedata recommended mechanism pass data between pages (e.g. content page layout page, or partial page). however have found not work other way, pass data partial page calling page. modifying or adding entries in pagedata in partial page, not seem calling page. cutting right down simplest possible example, in test page may have this: @{ pagedata["test"] = "initial entry"; } <p>before calling partial page, test value @pagedata["test"]</p> @renderpage("_testpartial.cshtml") <p>after returning calling page, test value @pagedata["test"]</p> and in _testpartial.cshtml page might have this: @{ pagedata["test"] = "modified entry"; } <p>in partial page...
Read more

visual c++ - Using relative values in array sorting ( asm ) -

-
i need sort through array , sort each individual row in array in ascending order. doesn't seem going (surprise!) keep getting hit 2 errors: a2101: cannot add 2 relocatable labels , a2026: constant expected here's sort, makes sense me, think i'm still trying implement high-lvl language techniqes assembly. there way around not being able use relative values? (the array 7 rows 9 columns, btw). mov cx, 7; cx = number of rows outer: ; outer loop walk through rows push cx mov cx, 9 mov row, cx ;rows middle: ; middle-loop walk through columns push cx sub cx, 1 ;cx = cx-1 mov column, cx ;columns inner: ;inner loop - compare , exchange column values cmp marray[row*9 + column], marray[row*9 + column+1] xchg marray[row*9 + column+1], marray[row*9 + column] ; compare , exchange values marray table inc column loop inner pop cx loop mid...
Read more