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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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MySQL JOIN the most recent row only?

...he index, rather than also having to read all data from the primary index. Now the pretty solution takes only 1.9 times as long as the subquery-based solution. – Timo Dec 4 '15 at 9:21 ...
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Understanding FFT output

... as sqrt (real * real + imag * imag). This number will always be positive. Now all you have to search is for the maximum value (ignore the first entry in your array. That is your DC offset and carries no frequency dependent information). You get 32 real and 32 imaginary outputs because you are usin...
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Should I use alias or alias_method?

...name” picks the method “full_name” defined in “Developer” class. Now lets try with alias. class User def full_name puts "Johnnie Walker" end def self.add_rename alias name full_name end end class Developer < User def full_name puts "Geeky geek" end add_rena...
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Best practice for Python assert

... assert should only be used to catch problems with no known recovery; almost always code bugs (not bad inputs). when an assert is triggered, it should mean that the program is in a state that may be dangerous to continue in, as it may start talking to the network or writing to d...
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How to convert timestamps to dates in Bash?

... @Bruno, how do you know date is faster than gawk.? – ghostdog74 Mar 3 '10 at 14:23 3 ...
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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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Passing a single item as IEnumerable

...@Svish I suggested and edit for the answer to do just that - we're in 2020 now, so it should be the "standard" imho – OschtärEi Apr 2 at 7:53 add a comment ...
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How to send a header using a HTTP request through a curl call?

...lly do. You should not replace internally set headers without knowing perfectly well what you're doing. Remove an internal header by giving a replacement without content on the right side of the colon, as in: -H "Host:". curl will make sure that each...
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How do I configure git to ignore some files locally?

...ed to use git update-index if you've already made a change to the file and now want it to be ignored. If you change exclude prior to making the change, it's not necessary. – Brady Emerson Jun 24 '14 at 0:45 ...