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Devise form within a different controller
...Devise form from a non-Devise controller.
To get around this, you need to add the following methods to the helper class of the controller you wish to display the form under. Alternatively, you can just add them to your application helper to make them available anywhere.
def resource_name
:us...
Global access to Rake DSL methods is deprecated
... "rake", "0.8.7"
You may see something like
rake aborted!
You have already activated Rake 0.9.1 ...
I still had a copy of Rake 0.9.1 in my directory so I deleted it.
You can "delete" Rake 0.9.1 by running the following command:
gem uninstall rake -v=0.9.1
If you have multiple versions of ...
Spring @Autowired usage
... that it's just a very simple layer, but each layer of abstraction that we add to our systems increase complexity. I really don't think the xml ever added any real value to any system I've worked with.
Most systems I've ever work with only have one configuration of the production runtime environme...
How to convert an entire MySQL database characterset and collation to UTF-8?
...l on MySQL 5.5.2 or older which didn't support 4-byte UTF-8, use utf8 instead of utf8mb4:
ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
...
What's the difference between a Python module and a Python package?
...
Jakob BowyerJakob Bowyer
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57...
Django URL Redirect
...
Dakota
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answered Feb 19 '13 at 13:57
dmgdmg
...
How do I move a single folder from one Subversion repository to another repository?
...sitory, filter it to only include information about the docs folder, and load it into the other repository.
Would be something like this:
svnadmin dump /svn/old_repos > ./repository.dump
svndumpfilter include path/to/docs --drop-empty-revs --renumber-revs --preserve-revprops < ./repository.d...
Type List vs type ArrayList in Java [duplicate]
...st without affecting the rest of the codebase.
If one used ArrayList instead of List, it's hard to change the ArrayList implementation into a LinkedList one because ArrayList specific methods have been used in the codebase that would also require restructuring.
You can read about the List implemen...
Finding duplicates in O(n) time and O(1) space
...
This is what I came up with, which doesn't require the additional sign bit:
for i := 0 to n - 1
while A[A[i]] != A[i]
swap(A[i], A[A[i]])
end while
end for
for i := 0 to n - 1
if A[i] != i then
print A[i]
end if
end for
The first loop permute...
Converting datetime.date to UTC timestamp in Python
... to UTC?
To convert datetime.datetime (not datetime.date) object that already represents time in UTC to the corresponding POSIX timestamp (a float).
Python 3.3+
datetime.timestamp():
from datetime import timezone
timestamp = dt.replace(tzinfo=timezone.utc).timestamp()
Note: It is necessary to...