Yes, this sound reasonable, and I verified it. You are absolutely correct. Thanks for your help Best regards
On Tue, Jan 15, 2013 at 10:25 AM, Bill Freeman <ke1g...@gmail.com> wrote: > Not being a MySQL expert, I'll still have a guess. The TimeField just > represents the time of day, with no notion of what day, see > http://docs.python.org/2.7/library/datetime.html#time-objects . The term > "timestamp", on the other hand, means to me a point in time in the more > grand sense, such as the integer number of seconds since the "epoch", and > thus embodies date and time. So if the "timestamp" in your database is > something from which you can figure out when something happened, including > on which day it happened, then DateTimeField is the correct one to use. > > By the way, Django provides a feature to "introspect" an existing database > and to compose models for it. I'll bet that it suggests the DataTimeField. > > Bill > > > On Tue, Jan 15, 2013 at 10:06 AM, Chen Xu <xuche...@gmail.com> wrote: > >> I am using my existing mysql db. I found out that if I have an enum and >> try to insert a value not present in the enum this error will occur. >> >> However, my problem occurs on a TimeField. I created this field using >> phpMyAdmin, it is a timestamp, and default is current time. Therefore, I >> did the following in my Django model: >> >> message_create_time = models.TimeField(auto_now_add=True) >> >> When I create an object, and save, it gives me: >> >> Traceback (most recent call last): >> File "<console>", line 1, in <module> >> File "/Library/Python/2.7/site-packages/django/db/models/base.py", line >> 463, in save >> self.save_base(using=using, force_insert=force_insert, >> force_update=force_update) >> File "/Library/Python/2.7/site-packages/django/db/models/base.py", line >> 551, in save_base >> result = manager._insert([self], fields=fields, return_id=update_pk, >> using=using, raw=raw) >> File "/Library/Python/2.7/site-packages/django/db/models/manager.py", >> line 203, in _insert >> return insert_query(self.model, objs, fields, **kwargs) >> File "/Library/Python/2.7/site-packages/django/db/models/query.py", >> line 1593, in insert_query >> return query.get_compiler(using=using).execute_sql(return_id) >> File >> "/Library/Python/2.7/site-packages/django/db/models/sql/compiler.py", line >> 912, in execute_sql >> cursor.execute(sql, params) >> File "/Library/Python/2.7/site-packages/django/db/backends/util.py", >> line 40, in execute >> return self.cursor.execute(sql, params) >> File >> "/Library/Python/2.7/site-packages/django/db/backends/mysql/base.py", line >> 114, in execute >> return self.cursor.execute(query, args) >> File >> "/Library/Python/2.7/site-packages/MySQL_python-1.2.4-py2.7-macosx-10.8-intel.egg/MySQLdb/cursors.py", >> line 203, in execute >> if not self._defer_warnings: self._warning_check() >> File >> "/Library/Python/2.7/site-packages/MySQL_python-1.2.4-py2.7-macosx-10.8-intel.egg/MySQLdb/cursors.py", >> line 117, in _warning_check >> warn(w[-1], self.Warning, 3) >> Warning: Data truncated for column 'message_create_time' at row 1 >> >> >> However if I change it to : >> message_create_time = models.DateTimeField() >> >> >> It works perfectly. >> >> Any ideas? >> >> Thanks in advance >> >> >> >> >> On Tue, Jan 15, 2013 at 7:32 AM, Bill Freeman <ke1g...@gmail.com> wrote: >> >>> Does the field in question have "max_length" specified (assuming that it >>> is a character field or a sub class)? Does introspecting the database with >>> the database's tools indicate that the corresponding field has that size? >>> Was the database created using Django's syncdb, or are you attempting to >>> use an existing database. Which database engine are you using (e,g.; >>> PostgreSQL, MySQL, etc. - different people will have insights into >>> different back ends)? Is a stack trace printed - if so, provide it for >>> us? At least, what is the exact text of the error message? >>> >>> Bill >>> >>> On Tue, Jan 15, 2013 at 1:19 AM, Chen Xu <xuche...@gmail.com> wrote: >>> >>>> Hi Everyone, >>>> I am new to Django, I am currently converting my site from php to >>>> Django. I have already have my database (all the tables) setup when I wrote >>>> in php; now when I convert to Django, I am basically matching each column >>>> with the existing column. After I finished doing this, I try to create an >>>> object, and doing a <object>.save() gives me Warning: Data truncated for >>>> column '<some column>'. However, I checked, the length of my string did not >>>> excess the limit. >>>> >>>> Could anyone help? >>>> >>>> >>>> Thanks >>>> >>>> >>>> >>>> >>>> -- >>>> ⚡ Chen Xu ⚡ >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Django users" group. >>>> To post to this group, send email to django-users@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> django-users+unsubscr...@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/django-users?hl=en. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Django users" group. >>> To post to this group, send email to django-users@googlegroups.com. >>> To unsubscribe from this group, send email to >>> django-users+unsubscr...@googlegroups.com. >>> For more options, visit this group at >>> http://groups.google.com/group/django-users?hl=en. >>> >> >> >> >> -- >> ⚡ Chen Xu ⚡ >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To post to this group, send email to django-users@googlegroups.com. >> To unsubscribe from this group, send email to >> django-users+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/django-users?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to django-users@googlegroups.com. > To unsubscribe from this group, send email to > django-users+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > -- ⚡ Chen Xu ⚡ -- You received this message because you are subscribed to the Google Groups "Django users" group. 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