views

问题 I have defined two functions in views.py to obtain first prova.html with certain elementimenu and then, after clicking over one of them, I obtain again the page with elementimenu and elementi associated to elementimenu with the same id i.e.: another_app.model.py ... class ElementiTab(models.Model): author = models.ForeignKey('auth.User', null=True, blank=False) des = models.CharField(max_length=30) x = models.FloatField() y = models.FloatField() res = models.FloatField(default=0) created_date

问题 I just started learning on how to make custom views .I created a drawable at the bottom of the screen and a small circle within it. The layout works perfectly fine but there is a small issue , the drawable in different resolution is cropped . Its works fine in S3 but in other devices the things are different. Here is my code : @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec( MeasureSpec.getSize

问题 today i tried the following: I have: a View with a form ( FormView ) a AbstractSourceProvider ( Provider ) to provide changes in FormView to the world a View ( ConsumerView ) that should consume information from Provider it implements ISourceProviderListener FormView updates the Provider , which fires the fireSourceChanged . But how can I register the ConsumerView so that it listens for changes in the Provider ? This answer here on stackoverflow, did not really explain how to do it: How to

问题 I have a database that we're filling up with documents, some of which are 10 KB, and some of which that are ~70 MB in size. Any view that tries to load these large documents fails with error: {"error":"os_process_error","reason":"{exit_status,0}"} , even this elementary one: function(doc) { emit(null, "test"); } os_process_error is set to 35000, but calling the view dies in ~15 seconds: time curl -X GET http://localhost:5984/portal_production/_design/all_data_keys/_view/view1 {"error":"os

问题 I am creating a webapp where user creates an inventory of items and he uses folders to categorize them. Now suppose I have two folders like this: All items (route: /) Closet items (route: #get/closet/id) When I navigate between these routes, I want to dispose of the models rendered in the previous route. How and where should I do that? Is there an event which is triggered when I navigate to a new route where may be I can perform this operation? 回答1: There are lots of ways to approach this,

问题 In Rails, I used the application_controller to control things like user sessions, and create objects to populate parts of the site like the menu. How should this be done in Django, since there is no kind of "application view"? Do you have to use custom filters and partial templates to be included, for instance in the base template to do this? I have also been looking at class-based views, but am unsure if that is it. 回答1: There are several ways to accomplish this: Template Tags Context

问题 I have a WebView that I've added to a view group: webView = new WebView(context); addView(webView, ViewGroup.LayoutParams.WRAP_CONTENT); This lives in my viewgroup's constructor. Then on layout, I want to do this: webView.measure(View.MeasureSpec.makeMeasureSpec(getWidth(),View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(3000, View.MeasureSpec.AT_MOST)); Unfortunately, unless I specify EXACTLY , the webView.getMeasuredHeight() always returns 0 . What I want to do, is determine how

问题 Basically I have a bunch of views based on a simple discriminator column (eg. CREATE VIEW tablename AS SELECT * FROM tablename WHERE discrcolumn = "discriminator value"). Upon inserting a new row into this view, it should insert "discriminator value" into discrcolumn . I tried this, but apparently MySQL doesn't figure this out itself, as it throws an error "Field of view viewname underlying table does not have a default value". The discriminator column is set to NOT NULL of course. How do I

问题 I'm trying to display all the 'legs' for each of my 'trips' in my view. Ideally they would look like this: -Trip1.name - Leg1.name - Leg2.name - Leg3.name -Trip2.name - Leg4.name - Leg5.name - Leg6.name The models are many-to-many. I have three tables Legs, Trips and Legs_trips. The models look like this: Trip.rb class Trip < ActiveRecord::Base has_and_belongs_to_many :legs accepts_nested_attributes_for :legs, :reject_if => :all_blank end Leg.rb class Leg < ActiveRecord::Base has_and_belongs

问题 I am using UI-Router and need a subview in another view. I need to render the "owner" view within the "dog" view. The following works for that purpose: UI-Router config is as follows .state('dogAbstract', { url: '/dog/:dogId', abstract: true, templateUrl: 'client/dogs/views/dog.ng.html', controller: 'dogCtrl', }) .state('dog', { url: "", parent: "dogAbstract", views: { "owner": { templateUrl: 'client/owners/views/owner.ng.html', controller: 'ownerCtrl' } } }) .state('dogsList', { url: '/dogs'