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How to get last N records with activerecord?
...uld get you what you want ('Something' is the model name):
Something.find(:all, :order => "id desc", :limit => 5).reverse
edit: As noted in the comments, another way:
result = Something.find(:all, :order => "id desc", :limit => 5)
while !result.empty?
puts result.pop
end
...
How to get all count of mongoose model?
...if you are using promise
or
userModel.count({}); // if you want to get all counts irrespective of the fields
On the recent version of mongoose, count() is deprecated so use
userModel.countDocuments({name: "sam"});
s...
Abstract class in Java
...h the inheriting subclass must implement.
Provide a common interface which allows the subclass to be interchanged with all other subclasses.
Here's an example:
abstract public class AbstractClass
{
abstract public void abstractMethod();
public void implementedMethod() { System.out.print("...
Access denied for user 'test'@'localhost' (using password: YES) except root user
...
Do not grant all privileges over all databases to a non-root user, it is not safe (and you already have "root" with that role)
GRANT <privileges> ON database.* TO 'user'@'localhost' IDENTIFIED BY 'password';
This statement create...
Search all the occurrences of a string in the entire project in Android Studio
...of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
...
What is CMake equivalent of 'configure --prefix=DIR && make all install '?
I do cmake . && make all install . This works, but installs to /usr/local .
7 Answers
...
Git: list only “untracked” files (also, custom commands)
...he alias line, or where is that documented?
– We Are All Monica
Sep 27 '10 at 6:31
@takeshin How to get only parent di...
How to initialize all the elements of an array to any specific value in java
...t() function which can fulfill my wish but in Java how can i initialize all the elements to a specific value? Whenever we write int[] array=new int[10]; , this simply initialize an array of size 10 having all elements equal to zero. I just want to change this initialization integer for one of m...
`Apache` `localhost/~username/` not working
...s:
<Directory "/Users/kevin/Sites/">
Options Indexes MultiViews
AllowOverride None
Require all granted
</Directory>
Make sure to restart the Apache server afterwards with:
sudo apachectl restart
share
...
Java concurrency: Countdown latch vs Cyclic barrier
...ble task which is run once the common barrier condition is met.
It also allows you to get the number of clients waiting at the barrier and the number required to trigger the barrier. Once triggered the barrier is reset and can be used again.
For simple use cases - services starting etc... a C...