Thank you for the response. However, that is not the problem. If I do
update = table.update(project.c.ProjectID=='project-name', values =
{project.c.ProjectID:'program'})
print update
update.execute()
everything works fine.
if I do this:
test = 'table.c.'+columns[0] #columns is a list which contains the
columns names
update = table.update(test == 'project-name', values={test:'program'})
update.execute()
it does not work. I get an error that there is no such column.
I need to be able to update columns dynamically where I do not have a
prior knowledge of what tables and what are the table columns that may
exist. How can I do that if at all?
On Jun 10, 7:21 am, GHZ <geraint.willi...@gmail.com> wrote:
> you should access column names via lower case
>
> i.e.
>
> columns = 'projectid', 'program', 'progmanger']
>
> On 10 Jun, 03:39, Aref <arefnamm...@gmail.com> wrote:
>
>
>
> > Hello All,
>
> > I just began learning sqlalchemy and am not quite used to it yet so
> > please excuse my ignorance and which might be a trivial question to
> > some of you.
> > I am writing a database module and need to load a table and possibly
> > modify a record in the table. I can get the connection established and
> > everything works fine. The problem I am running into is that I do not
> > necessarily know the column name before hand to code it in the update
> > method. I want to be able to find out to send a generic column name
> > which will be updated (gets the column name dynamically).
>
> > I tried the following:
>
> > columns=['ProjectID', 'Program', 'progmanger']
> > test = str('table.c.'+columns[1])
> > update = table.update(test=='project-name', values = {test:'program'})
> > print update
> > update.execute()
>
> > I get a error when I try to run it. It does not recognize the column
> > for some reason even though if I print test everything seems to be OK.
> > I get 'project.c.Program'
>
> > Is there something I am missing here? How can I send the project and
> > column name to the update method dynamically?
>
> > Thank you so much in advance for any help or insight you could provide.-
> > Hide quoted text -
>
> - Show quoted text -
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