correct NCBI Taxonomy ID format

ippisite/ippidb/models.py

@@ -50,7 +50,7 @@ class BibliographyForm(ModelForm):
         exclude = ['title','journal_name', 'authors_list', 'biblio_year']
 
 class Taxonomy(models.Model):
-    taxonomy_id = models.DecimalField('NCBI TaxID', unique=True, max_digits=4, decimal_places=0)
+    taxonomy_id = models.DecimalField('NCBI TaxID', unique=True, max_digits=9, decimal_places=0)
     name = models.CharField('Organism name', max_length=200)
     class Meta:
         verbose_name_plural = "taxonomies"