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PODjango unique_together does not allow ForeignKey field across applications when syncdb is executed
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  1. PODjango unique_together does not allow ForeignKey field across applications when syncdb is executed
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    copied!<p>I'm trying to create a unique constraint on my <code>TranslationRequest</code> model listed below. <code>TranslationRequest</code> has a foreign key relationship with a <code>MachineTranslator</code> model, which exists in another Django application. When I try to run syncdb, I get the error: <code>Error: One or more models did not validate: wt_articles.translationrequest: "unique_together" refers to translator, a field that doesn't exist. Check your syntax.</code></p> <p>When I remove <code>translator</code> from the <code>unique_constraint</code> specification, syncdb runs correctly. Note: I'm using Sqlite3 as my back-end database.</p> <p>Here are the definitions of <code>TranslationRequest</code> and <code>SourceArticle</code>.</p> <pre><code>from wt_translation.models import MachineTranslator class TranslationRequest(models.Model): article = models.ForeignKey(SourceArticle) target_language = models.ForeignKey(Language, db_index=True) date = models.DateTimeField(_('Request Date')) translator = models.ForeignKey(MachineTranslator), status = models.CharField(_('Request Status'), max_length=32, choices=TRANSLATION_STATUSES) class Meta: unique_together = ("article", "target_language", "translator") class SourceArticle(models.Model): title = models.CharField(_('Title'), max_length=255) language = models.ForeignKey(Language, db_index=True) timestamp = models.DateTimeField(_('Import Date'), default=datetime.now()) doc_id = models.CharField(_('Document ID'), max_length=512) source_text = models.TextField(_('Source Text')) sentences_processed = models.BooleanField(_('Sentences Processed')) </code></pre> <p>Here is the definition of <code>MachineTranslator</code>, in a different (but referenced Django application).</p> <pre><code>class MachineTranslator(models.Model): shortname = models.CharField(_('Name'), max_length=50) supported_languages = models.ManyToManyField(LanguagePair) description = models.TextField(_('Description')) type = models.CharField(_('Type'), max_length=32, choices=TRANSLATOR_TYPES, default='Serverland'), timestamp = models.DateTimeField(_('Refresh Date'), default=datetime.now()) is_alive = models.BooleanField() </code></pre> <p>Not all of the dependencies have been included in this code sample. Thanks for your help!</p>
 

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