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Unique Key constraints for multiple columns in Entity Framework
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With Entity Framework 6.1, you can now do this:
[Index("IX_FirstAndSecond", 1, IsUnique = true)]
public int FirstColumn { get; set; }
[Index("IX_FirstAndSecond", 2, IsUnique = true)]
public int SecondColumn { get; set; }
The second parameter in the attribu...
Is memcached a dinosaur in comparison to Redis? [closed]
... There is no facility to handle replication with memcache that I know of. Memcache is purely meant to be a cache. If the item is purged/lost, then it needs to be rebuilt. I have not used this before nor have I evaluated it, but this may be of interest to you. code.google.com/p/memagent
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When to use EntityManager.find() vs EntityManager.getReference() with JPA
...etter method). Just to change state (I mean setter method). As you should know, getReference returns a proxy object which uses a powerful feature called automatic dirty checking. Suppose the following
public class Person {
private String name;
private Integer age;
}
public class PersonS...
How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
...s 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them.
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fastest MD5 Implementation in JavaScript
There are many MD5 JavaScript implementations out there.
Does anybody know which one is the most advanced, most bugfixed and fastest?
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What is the combinatory logic equivalent of intuitionistic type theory?
...----------------- x fresh for G
. |- valid G, x:S |- valid
And now we can say how to synthesize types for terms in any given context, and how to change the type of something up to the computational behaviour of the terms it contains.
G |- valid G |- S : Set G |- T : Pi S...
Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
...cy graph is severely flattened:
As illustrated by the green color, it's now possible to reuse Library C without dragging along any unwanted dependencies.
However, all that said, with many DI Containers, you don't have to add hard references to all required libraries. Instead, you can use late bi...
Javascript seconds to minutes and seconds
...and subtract from the total seconds:
var seconds = time - minutes * 60;
Now if you also want to get the full hours too, divide the number of total seconds by 3600 (60 minutes/hour · 60 seconds/minute) first, then calculate the remaining seconds:
var hours = Math.floor(time / 3600);
time = time ...
How to implement a ConfigurationSection with a ConfigurationElementCollection
...se "add" the default one but i changed it just for the sake of this post.
Now all of our nested Elements have been implemented now we should aggregate all of those in a class which has to implement System.Configuration.ConfigurationSection
CustomApplicationConfigSection
public class CustomApplica...
jsonify a SQLAlchemy result set in Flask [duplicate]
... """
return [ item.serialize for item in self.many2many]
And now for views I can just do:
return jsonify(json_list=[i.serialize for i in qryresult.all()])
Hope this helps ;)
[Edit 2019]:
In case you have more complex objects or circular references, use a library like marshmallow).
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