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Getting Django admin url for an object

... I had a similar issue where I would try to call reverse('admin_index') and was constantly getting django.core.urlresolvers.NoReverseMatch errors. Turns out I had the old format admin urls in my urls.py file. I had this in my urlpatterns: (r'^admin/(.*)', admin.site...
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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术

...{{AFX_DATA_MAP(CPrintDlg) ""// NOTE: the ClassWizard will add DDX and DDV calls here "DDX_Control(pDX, IDC_MyButton, m_button); "//}}AFX_DATA_MAP 然后可以在该函数的最后进行初始化: "m_button.EnableWindow(FALSE); 到这里已经实现了改变属性。如果要动态改变其...
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Can you resolve an angularjs promise before you return it?

...d to work within the context of what was originally asked (i.e. a function call to service) and actually on site. Inside the service... function getSomething(id) { // There will always be a promise so always declare it. var deferred = $q.defer(); if (Cache[id]) { // Resolve the...
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How to select option in drop down using Capybara

...> you're interested in, then finds the <option> within that, then calls select_option on the <option> node. You've already pretty much done the first two things, I'd just rearrange them. Then you can tack the select_option method on the end: find('#organizationSelect').find(:xpath, ...
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What is Angular.noop used for?

...placeholder when you need to pass some function as a param. function foo (callback) { // Do a lot of complex things callback(); } // Those two have the same effect, but the later is more elegant foo(function() {}); foo(angular.noop); ...
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Should IBOutlets be strong or weak under ARC?

...st practice from Apple is for IBOutlets to be strong unless weak is specifically needed to avoid a retain cycle. As Johannes mentioned above, this was commented on in the "Implementing UI Designs in Interface Builder" session from WWDC 2015 where an Apple Engineer said: And the last option I wan...
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How to replace a hash key with another key

...sh: "k" is for "key", "v" is for "value", "x" is for "I don't know what to call it but I was trained as a mathematician so I call it x". – mu is too short Jun 2 '11 at 5:36 ...
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What exactly is a C pointer if not a memory address?

...ts, but since that's not a memory address it's not something we'd properly call a "pointer"). Your computer has addresses for its buckets of memory. Pointers store the value of an address (i.e. a pointer stores the value "42 Wallaby Way, Sydney", which is an address). Edit: I want to expand on Alexe...
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How to set a bitmap from resource

... Assuming you are calling this in an Activity class Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.image); The first parameter, Resources, is required. It is normally obtainable in any Context (and subclasses like Activ...
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What does the “map” method do in Ruby?

... @Inquisitive: 'each' returns the array that calls it (in the example, [1,2,3]) when a block is supplied, 'map' returns a new array populated with the values calculated by the block. This might help: set the variable ary = [1,2,3], and check out it's object_id. Then ru...