Ich verwende Django mit einer Remote-Oracle-Datenbank, und immer eine „Tabelle nicht vorhanden“ Fehler

Question

Jedes Mal, wenn ich eine einfache Abfrage ausführen, mit dem Django ORM auf einem Tisch in der Remote-Oracle-Datenbank, ich diesen Fehler:

>>> from apps.dl.models import Article
>>> Article.objects.using('dl').all()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/models/query.py", line 68, in __repr__
    data = list(self[:REPR_OUTPUT_SIZE + 1])
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/models/query.py", line 83, in __len__
    self._result_cache.extend(list(self._iter))
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/models/query.py", line 269, in iterator
    for row in compiler.results_iter():
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/models/sql/compiler.py", line 672, in results_iter
    for rows in self.execute_sql(MULTI):
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/models/sql/compiler.py", line 727, in execute_sql
    cursor.execute(sql, params)
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/backends/util.py", line 15, in execute
    return self.cursor.execute(sql, params)
  File "/var/www/acm.local/server-env/lib/python2.6/site-packages/django/db/backends/oracle/base.py", line 507, in execute
    return self.cursor.execute(query, self._param_generator(params))
DatabaseError: ORA-00942: table or view does not exist

Hier ist das Modell, das ich bin mit:

class Article(models.Model):
    id = models.CharField(primary_key=True, max_length=12, db_column="ID")
    publication_id = models.CharField(blank=True, null=True, max_length=12, db_column="PUBLICATION_ID")
    issue_id = models.CharField(blank=True, null=True, max_length=12, db_column="ISSUE_ID")
    section_id = models.IntegerField(blank=True, null=True, max_length=12, db_column="SECTION_ID")
    title = models.CharField(blank=True, null=True, max_length=512, db_column="TITLE")
    subtitle = models.CharField(blank=True, null=True, max_length=512, db_column="SUBTITLE")
    page_range = models.CharField(blank=True, null=True, max_length=32, db_column="PAGE_RANGE")
    start_page = models.CharField(blank=True, null=True, max_length=12, db_column="START_PAGE")
    end_page = models.CharField(blank=True, null=True, max_length=12, db_column="END_PAGE")
    article_no = models.CharField(blank=True, null=True, max_length=12, db_column="ARTICLE_NO")
    doi = models.CharField(blank=True, null=True, max_length=128, db_column="DOI")
    publication_date = models.DateTimeField(null=True, max_length=7, db_column="PUBLICATION_DATE")
    author_names = models.CharField(blank=True, null=True, max_length=4000, db_column="AUTHOR_NAMES")
    sort_key = models.IntegerField(null=True, db_column="SORT_KEY")
    abstract = models.TextField(blank=True, null=True, db_column="ABSTRACT")
    citation_url = models.CharField(blank=True, null=True, max_length=128, db_column="CITATION_URL")
    notes = models.CharField(blank=True, null=True, max_length=512, db_column="NOTES")
    downloads6 = models.IntegerField(null=True, db_column="DOWNLOADS6")
    downloads12 = models.IntegerField(null=True, db_column="DOWNLOADS12")
    citings = models.IntegerField(null=True, db_column="CITINGS")
    created_date = models.DateTimeField(db_column="CREATED_DATE")
    short_abstract = models.CharField(blank=True, null=True, max_length=4000, db_column="SHORT_ABSTRACT")
    teaser = models.TextField(blank=True, null=True, max_length=512, db_column="TEASER")
    cacm_id = models.CharField(blank=True, null=True, max_length=12, db_column="CACM_ID")
    cacm_ref = models.CharField(blank=True, null=True, max_length=512, db_column="CACM_REF")
    cacm_only = models.CharField(blank=True, null=True, max_length=1, db_column="CACM_ONLY")
    article_type = models.CharField(blank=True, null=True, max_length=32, db_column="ARTICLE_TYPE")
    article_url = models.TextField(blank=True, null=True, max_length=128, db_column="ARTICLE_TYPE")

    class Meta:
        db_tablespace = "DLDATA"
        db_table = "ARTICLES"
        managed = False

Ich habe noch nie mit einer Oracle-Datenbank gearbeitet, also bin ich nicht sicher, wie dieses Problem zu debuggen. Ich bin sicher, dass mein Benutzerrechte hat, die Tabelle zu sehen, weil ich es mit Navicat aussehen kann. Für Hinweise, wie ich dieses Problem beheben kann?

Answer 1

Dieser Fehler wird durch einen Fehler in Django verursacht. Ich wurde es wegen der Verwendung von Schemen in Oracle. Die Art und Weise dies zu umgehen (bis jetzt) ??ist:

class MyModel(models.Model):
    # Model stuff...        

    class Meta:
        # ...
        db_table = '"DLDATA"."ARTICLES"'