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How to remove all of the data in a table using Django
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Inside a manager:
def delete_everything(self):
Reporter.objects.all().delete()
def drop_table(self):
cursor = connection.cursor()
table_name = self.model._meta.db_table
sql = "DROP TABLE %s;" % (table_name, )
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MySql export schema without data
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Also consider using the --single-transaction option if you don't want or can't do table locks.
– Jim
Jan 22 '13 at 21:55
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Doctrine 2 can't use nullable=false in manyToOne relation?
... without a Package defined. User should own the relation. Relation is bidirectional, so a Package has zero or more users in it.
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Downloading a large file using curl
...u don't need to use fwrite AND CURLOPT_FILE. Passing the $fp is enough. I did both and ended up with 1 at the end of content in the file.
– paperclip
Jan 30 '13 at 21:00
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how to read System environment variable in Spring applicationContext
...ng 3.0 adds Spring Expression Language.
You can use
<util:properties id="dbProperties"
location="classpath:config_#{systemProperties['env']}/db.properties" />
Combined with java ... -Denv=QA should solve your problem.
Note also a comment by @yiling:
In order to access system env...
Scroll to bottom of div?
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Here's what I use on my site:
var objDiv = document.getElementById("your_div");
objDiv.scrollTop = objDiv.scrollHeight;
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How to see the changes in a Git commit?
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First get the commit ID using,
git log #to list all
Or
git log -p -1 #last one commit id
Copy commit id.
Now we use two methods to list changes from a specific commit,
Method 1:
git diff commit_id^! #commit id something like this 1c6a6...
JavaScript - Getting HTML form values
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HTML:
<input type="text" name="name" id="uniqueID" value="value" />
JS:
var nameValue = document.getElementById("uniqueID").value;
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What are database normal forms and can you give examples? [closed]
.... Recall that a primary key can be made up of multiple columns. As Chris said in his response:
The data depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] (so help me Codd).
2NF
Say you have a table containing courses that are taken in a certain semester, and you have the...
How to Set focus to first text input in a bootstrap modal after shown
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@scumah has the answer for you: Twitter bootstrap - Focus on textarea inside a modal on click
For Bootstrap 2
modal.$el.on('shown', function () {
$('input:text:visible:first', this).focus();
});
Update: For Bootstrap 3
$('#myModal').on('shown.bs.modal', function () {
$('#textareaID...