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The relationship could not be changed because one or more of the foreign-key properties is non-nulla

...lso stripped away all repository abstractions to keep it simple. I don't know if that is a good solution, but I believe that some kind of hard work along these lines must be done to take care of all kinds of changes in the navigation collection. I would also be happy to see an easier way of doing i...
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Make var_dump look pretty

... I used to see like this when doing var_dump, but now that I have wampserver 2.5 with php 5.5.12 I see it unformatted. How come I could see like your photo before, without installing anything more than wampserver? – Limon Nov 28 '14 at ...
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How do I debug an MPI program?

... here. DDT is nice. Try it out too. TotalView also integrates with STAT now, so if your site has a TotalView installation you could try that as well. LLNL keeps TotalView and DDT around, and it's nice that TotalView finally has some stiff competition. – Todd Gamblin ...
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How to 'insert if not exists' in MySQL?

...EY (`ensembl_transcript_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Now imagine that we have an automatic pipeline importing transcripts meta-data from Ensembl, and that due to various reasons the pipeline might be broken at any step of execution. Thus, we need to ensure two things: ...
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Programmatically access currency exchange rates [closed]

...change Rates project data has been moved away from GitHub. It is available now at: http://openexchangerates.org/ Data in JSON format is available at: http://openexchangerates.org/latest.json No access fees, no rate limits, No ugly XML - just free, hourly updated exchange rates in JSON format. This ...
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Set Additional Data to highcharts series

... I know this is an old answer, but fiddle linked no longer shows the relevant example. – undefinedvariable Feb 25 '13 at 17:15 ...
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How to make node.js require absolute? (instead of relative)

...th the node_modules/* trick, and then you can add your exceptions. Now anywhere in your application you will be able to require('foo') or require('bar') without having a very large and fragile relative path. If you have a lot of modules and want to keep them more separate from the...
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Does “git fetch --tags” include “git fetch”?

..., it is not because --tags was set. As such, this special error message is now irrelevant. To prevent confusion, remove this error message. With Git 2.11+ (Q4 2016) git fetch is quicker. See commit 5827a03 (13 Oct 2016) by Jeff King (peff). (Merged by Junio C Hamano -- gitster -- in commit...
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What unique features does Firebug have that are not built-in to Firefox?

...between Firebug and the Firefox DevTools. Firebug integration Firebug is now built on top of the native developer tools. Since Firefox 48 there's also a Firebug theme that looks like the Firebug extension, letting you feel at home if you're used to Firebug. Once multi-process Firefox is enabled, p...
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Redirect all to index.php using htaccess

...updated Feb '18 and Jan '19) It's not actually necessary (nor even common now) to set the path as a $_GET variable, many frameworks will rely on $_SERVER['REQUEST_URI'] to retrieve the same information - normally to determine which Controller to use - but the principle is exactly the same. This do...