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How to fix the uninitialized constant Rake::DSL problem on Heroku?
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Any time you change your Gemfile, you need to bundle install to update your lockfile (Gemfile.lock). The error you're getting on push is not specific to changing the version of rake.
bundle install
git commit -a -m "update lockf...
Java Interfaces/Implementation naming convention [duplicate]
How do you name different classes / interfaces you create?
Sometimes I don't have implementation information to add to the implementation name - like interface FileHandler and class SqlFileHandler .
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What is @ModelAttribute in Spring MVC?
...ods or on method arguments. And of course we can have both use at the same time in one controller.
1.Method annotation
@ModelAttribute(“cities”)
public List<String> checkOptions(){
return new Arrays.asList(new[]{“Sofia”,”Pleven","Ruse”});//and so on
}
Purpose of such method i...
Java Generics (Wildcards)
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There may be times when you'll want to restrict the kinds of types that are allowed to be passed to a type parameter. For example, a method that operates on numbers might only want to accept instances of Number or its subclasses. This is ...
Multiple inputs with same name through POST in php
...orem'
$_POST['xyz'][4] == 'amet'
If so, that would make my life ten times easier, as I could send an
indefinite amount of information through a form and get it processed
by the server simply by looping through the array of items with the
name "xyz".
Note that this is probably the wron...
How do I send a JSON string in a POST request in Go
... Just a warning, don't forget that by default the golang http client never times out, so for the real world, best to set something along the lines of client.Timeout = time.Second * 15
– svarlamov
Aug 3 '18 at 4:30
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Always pass weak reference of self into block in ARC?
...weakSelf = self;
[[SomeOtherObject alloc] initWithCompletion:^{
//By the time this gets called, "weakSelf" might be nil because it's not retained!
[weakSelf doSomething];
}];
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improve th...
What is the difference between packaged_task and async
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3 Answers
3
Active
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How can prepared statements protect from SQL injection attacks?
... well. But yet, MySQL queries were still prepared by PDO by default, last time i checked.
– cHao
Aug 18 '13 at 9:32
9
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Default value of a type at Runtime [duplicate]
...ant type or generic type argument when all he has is a Type instance at runtime. I read his question the same as codeka.
– Josh
Mar 22 '10 at 6:19
10
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