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Delete everything in a MongoDB database
I'm doing development on MongoDB. For totally non-evil purposes, I sometimes want to blow away everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points...
How can I recover a removed file in Mercurial (if at all)?
Accidentally, by using a GUI as opposed to CLI, I removed every file in a Mercurial project.
9 Answers
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Analytics Google API Error 403: “User does not have any Google Analytics Account”
...Google Analytics profile I wanted it to access.
I got the email address (something like xxxxxx@developer.gserviceaccount.com) for the service account by looking under the "API Access" tab in the Google APIs console.
Then, I followed Google's instructions for adding an email address to an Analytics p...
Why does Java have transient fields?
...d to indicate that a field should not be part of the serialization (which means saved, like to a file) process.
From the Java Language Specification, Java SE 7 Edition, Section 8.3.1.3. transient Fields:
Variables may be marked transient to
indicate that they are not part of the
persistent...
How to ensure a form field is submitted when it is disabled?
...disabled="disabled">
....
</select>
<input type="hidden" name="select_name" value="selected value" />
Where select_name is the name that you would normally give the <select>.
Another option.
<select name="myselect" disabled="disabled">
<option value="myselec...
Is there a way to access method arguments in Ruby?
...
In Ruby 1.9.2 and later you can use the parameters method on a method to get the list of parameters for that method. This will return a list of pairs indicating the name of the parameter and whether it is required.
e.g.
If you do
def foo(x, y)
end
then
method(:f...
Is it possible to center text in select box?
...ver, using a jQuery plugin, you could style the dropdown:
https://www.filamentgroup.com/lab/jquery-ui-selectmenu-an-aria-accessible-plugin-for-styling-a-html-select.html
This plugin hides the select element, and creates span elements etc on the fly to display a custom drop down list style. I'm qui...
What is Hindley-Milner?
... encountered this term Hindley-Milner , and I'm not sure if grasp what it means.
3 Answers
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
....
I believe I have found as good an explanation as we will find without somebody from the .NET JIT team answering.
UPDATE
I looked a little deeper, and I believe I have found the source of the issue. It appears to be caused by a combination of a bug in the JIT type-initialization logic, and a ch...
Get Specific Columns Using “With()” Function in Laravel Eloquent
...h(array('user'=>function($query){
$query->select('id','username');
}))->get();
It will only select id and username from other table. I hope this will help others.
Remember that the primary key (id in this case) needs to be the first param in the
$query->select() to actually...