Denis Popov akadan47
ocean90
/ box-shadow.html
Last active
September 3, 2024 16:56
CSS3 Box Shadow, only top/right/bottom/left and all
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Box Shadow</title> | |
| <style> | |
| .box { | |
| height: 150px; | |
| width: 300px; | |
| margin: 20px; |
gsakkis
/ polymorphic.py
Created
October 3, 2010 14:06
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| '''Manager-based polymorphic model inheritance. | |
| This module provides a non-intrusive approach for accessing polymorphically | |
| instances of a model hierarchy. Non-intrusive means: | |
| - It does not require extending a custom ``Model`` base class or metaclass. | |
| - It does not require a ``ForeignKey`` to ``ContentType`` or the ``contenttypes`` | |
| app in general. Instead the real class of an instance is determined based on | |
| the value (**polymorphic identity**) of a user-specified discriminating field | |
| (**polymorphic on**). | |
| - It does not override the default (or any other) model ``Manager`` (unless |