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Models with database views

Author:
diverman
Posted:
June 13, 2009
Language:
Python
Version:
1.0
Tags:
model mysql sql views models database view
Score:
1 (after 3 ratings)

This example shows, how to use database views with django models. NewestArticle models contains 100 newest Articles. Remember, that NewestArticle model is read-only. Tested with mysql.

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class ArticleBase(models.Model):
    title = models.CharField(max_length=32, db_index=True)
    date_time = models.DateTimeField(auto_now=True, db_index=True)
    text = models.TextField()
    authors = models.ManyToManyField('Author')

    class Meta:
        abstract = True
        ordering = ( '-date_time', )

class Article(ArticleBase):
    pass

class NewestArticle(ArticleBase)
    """ READ ONLY MODEL """
    def save(self, **kwargs):
        raise NotImplementedError

DROP TABLE app_newestarticle_authors;
DROP TABLE app_newestarticle;
CRETAE VIEW app_newestarticle AS SELECT * FROM app_article ORDER BY date_time DESC LIMIT 100;
CRETAE VIEW app_newestarticle_authors AS SELECT article_id newestarticle_id, author_id FROM app_article_authors;

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