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Django dynamic model fields

...y constraint, which may be inefficient on some databases. You will need to select one of the forks, since the official package is no longer maintained and there is no clear leader. The usage is pretty straightforward: import eav from app.models import Patient, Encounter eav.register(Encounter) e...
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OPTION (RECOMPILE) is Always Faster; Why?

...y estimates for applying both restrictions and a poor execution plan being selected. The fix in this case would be to create a statistics object linking the two columns, which is not an expensive operation. share | ...
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What is the correct way to create a single-instance WPF application?

...nal feelings) that it is still better to open a new app when file assoc is selected. But I understand better the question asked now. Thanks ! – Eric Ouellet Dec 6 '13 at 16:07 ...
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Is it safe to use Project Lombok? [closed]

...ield name) and finally, use the Breakpoints view to right-click the BP and select Breakpoint Properties... to add a condition. Nice. UPDATE 4 (Aug 16 '13) Netbeans doesn't like it when you update your Lombok dependencies in your Maven pom. The project still compiles, but files get flagged for hav...
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A gentle tutorial to Emacs/Swank/Paredit for Clojure

...mgmt for finding files, searching, etc helm – incremental completion and selection narrowing framework (or swiper) Other Resources If you’re looking for a setup that already has done most/all of this work for you, a couple options are: prelude spacemacs ...
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WebSockets protocol vs HTTP

...a preconceived notion about WebSockets vs HTTP particularly since he never selected an answer nor awarded the bounty. – kanaka Feb 15 '13 at 13:06 9 ...
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How to color System.out.println output? [duplicate]

...7 | white | | 39 | 49 | default | +~~~~~~+~~~~~~+~~~~~~~~~~~+ Select Graphic Rendition (SGR) SGR just allows you to change the text. Many of these do not work in certain terminals, so use these sparingly in production-level projects. However, they can be useful for making program outpu...
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Many-to-many relationship with the same model in rails?

...ails generates in the log file. You'll find something like the following: SELECT * FROM "posts" INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id WHERE ("post_connections".post_a_id = 1 ) To make the association bi-directional, we'd have to find a way to make Rails OR the...
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What is polymorphism, what is it for, and how is it used?

...g different courses of action, you create interchangeable objects that you select based on your needs. That is the basic goal of polymorphism. share | improve this answer | ...
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What is the difference between the kernel space and the user space?

...d 2 aren't used? How is the current ring determined? The current ring is selected by a combination of: global descriptor table: a in-memory table of GDT entries, and each entry has a field Privl which encodes the ring. The LGDT instruction sets the address to the current descriptor table. See ...