class MyModelAdmin(admin.ModelAdmin): … def changelist_view(self, request, extra_context=None): extra_context = extra_context or {} extra_context[‘some_var’] = ‘This is what I want to show’ return super(MyModelAdmin, self).changelist_view(request, extra_context=extra_context) See: https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.changelist_view
This is how I do it in my projects: Define a template in your HTML: <script type=”text/template” id=”cardTemplate”> <div> <a href=”https://stackoverflow.com/questions/14062368/{0}”>{1}</a> </div> </script> Use string.format to substitute variables: var cardTemplate = $(“#cardTemplate”).html(); var template = cardTemplate.format(“http://example.com”, “Link Title”); $(“#container”).append(template); string.format: String.prototype.format = function() { var args = arguments; return this.replace(/{(\d+)}/g, function(match, number) { return typeof … Read more
Here’s a couple more: NHaml Spark Brail (can be used standalone) About NVelocity, it has been forked by the Castle guys, it’s being developed here For emails, I’ve never needed more than NVelocity.
A class template can indeed contain virtual or pure virtual functions. This was employed by Andrei Alexandresu in “Modern C++ Design” to implement the visitor pattern using templates and type lists. You can see the code here in his Loki library if you’re interested. With most standard C++ implementations, this is fine, because when the … Read more
C++11 introduces <type_traits> template <typename T1, typename T2> class BasePair{ static_assert(std::is_base_of<Base, T1>::value, “T1 must derive from Base”); static_assert(std::is_base_of<Base, T2>::value, “T2 must derive from Base”); T1 first; T2 second; };
The problem is that you cannot mix static time polymorphism (templates) with runtime polymorphism easily. The reason for the language disallowing the particular construct in your example is that there are potentially infinite different types that could be instantiating your template member function, and that in turn means that the compiler would have to generate … Read more
Sometimes you want it to be >>. Consider boost::array<int, 1024>>2> x; In C++03 this successfully parses and creates an array of size 256.
It’s simple when you spot it: your operator is not const-qualified, while the lambda’s one is (unless you define the lambda as mutable). Hence, it is a better match for your non-const instance of Poc. Just add the missingconst: auto operator() (Ts…) const
After getting help from other answers and comments, and reading GCC source code and C++11 standard, I found that it is possible to parse a function type (its return type and its argument types) by using partial template specialization and function overloading. The following is a simple (and incomplete) example to implement something like std::function: … Read more
The purpose of the Grid is not for real databinding, it is just a panel. I am listing down the easiest way to accomplish the visualization of a two dimensional list <Window.Resources> <DataTemplate x:Key=”DataTemplate_Level2″> <Button Content=”{Binding}” Height=”40″ Width=”50″ Margin=”4,4,4,4″/> </DataTemplate> <DataTemplate x:Key=”DataTemplate_Level1″> <ItemsControl ItemsSource=”{Binding}” ItemTemplate=”{DynamicResource DataTemplate_Level2}”> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <StackPanel Orientation=”Horizontal”/> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </DataTemplate> </Window.Resources> … Read more