django.db.utils.IntegrityError: (1048, „Spalte‚create_timestamp‘kann nicht null sein“)

Question

Dies ist die vollständige Ausgabe nach Skript ausführen, dieser Fehler vorhanden ist, wenn ich Skript auf Python ausführen verwenden django 1.10 Python 2.7

File "/usr/bin/snort-sig-parser.py", line 213, in <module> 
    main() 
    File "/usr/bin/snort-sig-parser.py", line 205, in main 
    sig_parse(sig_line, 0,options.branch,options.revision) 
    File "/usr/bin/snort-sig-parser.py", line 173, in sig_parse 
    sig_obj.save() 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 796, in save 
    force_update=force_update, update_fields=update_fields) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 824, in save_base 
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 908, in _save_table 
    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 947, in _do_insert 
    using=using, raw=raw) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/manager.py", line 85, in manager_method 
    return getattr(self.get_queryset(), name)(*args, **kwargs) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 1043, in _insert 
    return query.get_compiler(using=using).execute_sql(return_id) 
    File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1054, in execute_sql 
    cursor.execute(sql, params) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute 
    return super(CursorDebugWrapper, self).execute(sql, params) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute 
    return self.cursor.execute(sql, params) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 117, in execute 
    six.reraise(utils.IntegrityError, utils.IntegrityError(*tuple(e.args)), sys.exc_info()[2]) 
    File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 112, in execute 
    return self.cursor.execute(query, args) 
    File "/usr/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute 
    self.errorhandler(self, exc, value) 
    File "/usr/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler 
    raise errorclass, errorvalue 
django.db.utils.IntegrityError: (1048, "Column 'create_timestamp' cannot be null") 

Dieses Skript nicht auf MySQL-Datenbank schreiben.

Dies ist Teil des Codes für Modelle.

class SignatureUpdateSet(models.Model): 
create_timestamp = models.DateTimeField() 
branch = models.CharField(max_length=80) 
revision = models.IntegerField() 
new_signatures = models.ManyToManyField(Signature,related_name='new_signatures') 
updated_signatures = models.ManyToManyField(Signature,related_name='updated_signatures') 
deleted_signatures = models.ManyToManyField(Signature,related_name='deleted_signatures') 
#blogpost_id = models.IntegerField(blank=True, null=True) 
blogpost = models.ForeignKey(BlogPost,null=True) 

class Meta: 
    managed = False 
    db_table = 'content_app_signatureupdateset' 

Answer 1

hinzufügen auto_now=True in Ihrem create_timestamp Feld, wenn Sie automatisch Time Stamp hinzufügen möchten, sonst, wenn Sie etwas anderes als aktuellen Zeitstempel hinzufügen möchten, können Sie blank=True und fügen Sie beliebige benutzerdefinierte Zeitstempel hinzufügen können, wenn Sie vor dem Speichern .

create_timestamp = DateTimeField(auto_now=True) # To save current datetime 

create_timestamp = DateTimeField(blank=True) # To save any custom date time