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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...itional dependencies and use SecureRandom which is builtin:
SecureRandom.uuid #=> "1ca71cd6-08c4-4855-9381-2f41aeffe59c"
See other possible formats here.
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What is the `zero` value for time.Time in Go?
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"Passing no arguments" makes it sound like a function call. It's a struct literal with no fields specified. X{} is the zero value of the struct X for any X.
– Russ Cox
Apr 16 '14 at 2:00
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
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As per @IberoMedia's comment, for newer versions of MySQL, the field is called authentication_string:
mysql> UPDATE mysql.user SET authentication_string =PASSWORD('password') WHERE User='root';
Start MySQL using:
sudo service mysql start
or
sudo /usr/local/mysql/support-files/mysql.serv...
Avoiding an ambiguous match exception
... you're looking for? Browse other questions tagged c# reflection ambiguous-call or ask your own question.
How to loop through all the files in a directory in c # .net?
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It's called searchPattern and it's a filter by which files are selected. In this case it will select all files ending in "ProfileHandler.cs". Have a look at MDSN
– Migwell
Oct 13 '16 at 23:10...
Java optional parameters
...lt;Integer>absent());
Optional makes a method contract explicit for a caller, however, one may find such signature too verbose.
Update: Java 8 includes the class java.util.Optional out-of-the-box, so there is no need to use guava for this particular reason in Java 8. The method name is a bit d...
How do you set the text in an NSTextField?
...don't need to convert the integer value to a string manually; you can just call:
myLabel.integerValue = i;
The integerValue property is defined on NSTextField's parent class, NSControl. See that linked documentation page for a full list of methods it supports.
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How to turn on line numbers in IDLE?
...nt window, go to Options and click Show Line Numbers.
To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box.
Version 3.7 or older:
Unfortunately there is not an option to display line numbers in IDLE although there is an enhance...
Django: Display Choice Value
...? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
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Querying DynamoDB by date
...pdated Answer:
DynamoDB allows for specification of secondary indexes to aid in this sort of query. Secondary indexes can either be global, meaning that the index spans the whole table across hash keys, or local meaning that the index would exist within each hash key partition, thus requiring the ...