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Using a constant NSString as the key for NSUserDefaults
...SString object.
It is a subtle difference. The compiler warning happens because setObject:forKey: is declared as follows:
- (void)setObject:(id)value forKey:(NSString *)defaultName;
It is expecting the defaultName argument to be of type NSString *. When you instead pass in a pointer to a constan...
.gitignore exclude files in directory but not certain directories
...s doesn't seem to be working. When I clone the project, there is no "application/cache" folder or "application/cache/folder" folder, etc...
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How should I write tests for Forms in Django?
...the form is rendered. Example to get an idea:
from django.test import TestCase
from myapp.forms import MyForm
class MyTests(TestCase):
def test_forms(self):
form_data = {'something': 'something'}
form = MyForm(data=form_data)
self.assertTrue(form.is_valid())
......
Return only string message from Spring MVC 3 Controller
Can any one tell me how I can return string message from controller?
6 Answers
6
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Post an empty body to REST API via HttpClient
The API I'm trying to call requires that I do a POST but with an empty body. I'm new to using the WCF Web API HttpClient and I can't seem to find out the write code that would do a post with an empty body. I find references to some HttpContent.CreateEmpty() method, but I don't think that is for th...
Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example:
6 Answers
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Error while pull from git - insufficient permission for adding an object to repository database .git
...of where in your repo you currently are. If you're already in the root you can just run sudo chown -R $USER:$USER .git
– dwurf
May 29 '14 at 2:31
7
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Regex: Specify “space or start of string” and “space or end of string”
...
You can use any of the following:
\b #A word break and will work for both spaces and end of lines.
(^|\s) #the | means or. () is a capturing group.
/\b(stackoverflow)\b/
Also, if you don't want to include the space in...
How do you delete an ActiveRecord object?
...r.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: 'value') will allow you to delete records
without a primary...
Hibernate problem - “Use of @OneToMany or @ManyToMany targeting an unmapped class”
...g my feet with Hibernate Annotations and I've hit a problem I hope someone can help with.
7 Answers
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