CSC/ECE 517 Fall 2014/ch1a 8 os: Difference between revisions
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=== Object- Relational Mapper === | === Object- Relational Mapper === | ||
Django has its own object relational mapper which eases database access. It facilitates writing of model classes directly in python. Model classes can be defined by sub-classing [https://docs.djangoproject.com/en/1.7/ref/models/instances/#django.db.models.Model django.db.models.Model]. Each attribute of this class corresponds to a database field. This makes it possible to use an automatically generated database access API. | Django has its own object relational mapper which eases database access. It facilitates writing of model classes directly in python. Model classes can be defined by sub-classing [https://docs.djangoproject.com/en/1.7/ref/models/instances/#django.db.models.Model django.db.models.Model]. Each attribute of this class corresponds to a database field. This makes it possible to use an automatically generated database access API. | ||
<pre> | |||
from django.db import models | |||
class Person(models.Model): | |||
first_name = models.CharField(max_length=30) | |||
last_name = models.CharField(max_length=30) | |||
</pre> | |||
The database columns first_name and last_name are specified as class attributes and an id field is automatically added to the table. | |||
== Comparison with other Web Frameworks == | == Comparison with other Web Frameworks == | ||
== References == | == References == | ||
Revision as of 16:25, 14 September 2014
Django
Background
Architecture
Features
Object- Relational Mapper
Django has its own object relational mapper which eases database access. It facilitates writing of model classes directly in python. Model classes can be defined by sub-classing django.db.models.Model. Each attribute of this class corresponds to a database field. This makes it possible to use an automatically generated database access API.
from django.db import models
class Person(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
The database columns first_name and last_name are specified as class attributes and an id field is automatically added to the table.