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How to decorate a class?
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I would second the notion that you may wish to consider a subclass instead of the approach you've outlined. However, not knowing your specific scenario, YMMV :-)
What you're thinking of is a metaclass. The __new__ function in a metaclass is passed the full proposed definitio...
Prevent Bootstrap Modal from disappearing when clicking outside or pressing escape? [duplicate]
...ndow, and would like to prevent the user from closing it when clicking outside of the modal or when pressing escape. Instead, I want it to be closed when the user presses the finish button. How could I achieve this scenario?
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How can I display just a portion of an image in HTML/CSS?
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Just to clarify, you’d set the width and height of the container td, div, span or whatever to 50px to make this work.
– Paul D. Waite
Apr 27 '09 at 8:38
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Load local JSON file into variable
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If you pasted your object into content.json directly, it is invalid JSON. JSON keys and values must be wrapped in double quotes (" not ') unless the value is numeric, boolean, null, or composite (array or object). JSON cannot contain functions or undefined values. Below is your object as v...
Best way to center a on a page vertically and horizontally? [duplicate]
...t work in IE7).
This trick will work with any sizes of div.
div {
width: 100px;
height: 100px;
background-color: red;
position: absolute;
top:0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
}
<div></div>
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
..."Next" button.
Next, make a read-only section in the install tree and pre-select or unselect it on the a function which is executed before the Components page is shown.
This will make sure that the installation of each missing runtime component is mandatory, and is skipped if it is already present...
ARC and bridged cast
With ARC, I can no longer cast CGColorRef to id . I learned that I need to do a bridged cast. According clang docs :
3 ...
Android Fragment lifecycle over orientation changes
... FragmentOne fragment = new FragmentOne();
fragmentTransaction.add(R.id.fragment_container, fragment);
fragmentTransaction.commit();
} else {
// do nothing - fragment is recreated automatically
}
Be warned though: problems will occur if you try and access Activity Views from ...
Set Value of Input Using Javascript Function
... currently using a YUI gadget. I also do have a Javascript function to validate the output that comes from the div that YUI draws for me:
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How to define two fields “unique” as couple
...= ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=True)
journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal")
volume_number = models.CharField('Volume Number', max_length=100)
comments = models....