Databases
StackOverflow2013
Postsdbo
POremove ko suscrptions in durandal?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POremove ko suscrptions in durandal?
    primarykey
    data
    text
    <p>Working with durandal and knockout i have some issues with suscription to the properties. Basically in my viewAttached method i have some suscription to observable properties what work very good at the first time when I load my view. In the second time when I load the view I got some issues due that code inside of suscriptions are executed (thing what i don't want). The code is something like that:</p> <pre><code>export var viewAttached = function (view) { toDate.subscribe(function (newValue) { isLoading(true); return datacontext.getData(newValue).then(function () { isLoading(false); }); }); fromDate.subscribe(function (newValue) { isLoading(true); return datacontext.getData(newValue).then(function () { isLoading(false); }); }); } </code></pre> <p>The code inside of the suscription is executed at the moment to load my view in a second time, what is wrong. I would like know if is possible remove the suscriptions to this properies aftet to unload my view. Is that possible? is possible know when a view is unload ?. any help is apreciated.</p> <p><strong>UPDATE:</strong> I tried remove the suscription in Activate function (see durandal docs) but the suscription code is there yet.</p> <pre><code>export function activate() { //remove suscriptions toDate.subscribe(function (newValue) { //do nothing }); fromDate.subscribe(function (newValue) { //do nothing }); } </code></pre> <p><strong>UPDATE:</strong> The fromDate and ToDate are declared as (i am using typescript)</p> <pre><code>export var fromDate = &lt;any&gt;ko.observable(); export var toDate = &lt;any&gt;ko.observable(); </code></pre> <p>fromDate and toDate and seted by default on activate method:</p> <pre><code>function loadInitData() { var focusDate = ko.observable(selectedDate); fromDate(firstDayOfMonth(focusDate)); toDate(getLastDayOfMonth(focusDate)); loadFilterLookups(); loadRegistrations(); } export function activate() { loadInitData(); } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRolando
    1. USRolando
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POremove ko suscrptions in durandal?
      1. USRolando
      1. VTBountyStart
    2. VO
      singulars
      1. POremove ko suscrptions in durandal?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIs there a reason why `subscribe` isn't setup right after defining `toDate` and `fromDate`?
      singulars
      1. POremove ko suscrptions in durandal?
      1. USRainerAtSpirit
    2. COthe reason was because in my activate method I am calling to my service with default values for fromDate and toDate. so what i did was: 1) Set variables with default values 2) Call my services 3) Add suscriptions for futures changes in my filter from the UI. check this post: http://stackoverflow.com/questions/17178632/how-to-avoid-run-code-twice-using-ko-property
      singulars
      1. POremove ko suscrptions in durandal?
      1. USRolando
    3. COCan you show your AMD outline, where `toDate` and `fromDate` are defined and if the module returns a singleton or a constructor function? If using a singleton do you have cacheViews: true turned on in your view?
      singulars
      1. POremove ko suscrptions in durandal?
      1. USRainerAtSpirit
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload