Thanks. I am now over the main hump and cleaning up a bit. But still
have a problem. I let the user create a community as described
above. The app create a new subdirectory and creats some tables
within that subdirectry at community creation time. All is well up to
this point. I display a list of communities and the user can select
one to "work with". I reopen the databse corresponding to the
community (see mtgdb in code below). However when I try and access
the tables in the database I get a "keyError: thoughts (thoughts is
the name of the table I am operating on. The error occurs on the
creation of ideaform, the 1st reference to the mtgdb.thoughts table.
def openmeeting():
if not request.args:
# or not isint(request.args(0)):
session.flash = 'Invalid parameter'
redirect(URL(r=request, c='default', f='index'))
meeting = db(db.meeting.id == request.args(0)).select()
if len(meeting):
meeting = meeting[0]
else:
session.flash = 'Invalid meeting'
redirect(URL(r=request,c='default',f='index'))
app=str(meeting.id)
db_path = os.path.join(request.folder,'databases',app)
mtgdb=DAL('sqlite://storage.sqlite', folder=db_path)
print 'dbpath=', db_path
sink = mtgdb(db.thoughts).select()
if auth.is_logged_in():
db.meeting.author.default = auth.user.id
ideaform = SQLFORM(mtgdb.thoughts, fields=['description'],
submit_button='Post', formstyle='divs')
if ideaform.accepts(request.vars, session):
response.flash = 'form accepted'
elif ideaform.errors:
response.flash = 'form has errors'
else:
response.flash = 'please fill out the form'
results=mtgdb().select(mtgdb.thoughts.ALL)
return dict(results=results,ideaform=ideaform)
On Aug 9, 11:48 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
> You are right. crud forms should not be acceped. do this:
>
> def f(form):
> app=meeting.name # somehow determine which name
> db_path = os.path.join(request.folder,'databases',app)
> os.path.rmdir(db_path) # you may need to clear recursively
> form=crud.delete(db.meeting,meeting.id, ondelete=f)
> if form.errors:
> response.flash = 'Invalid data.'
> return dict(form=form)
>
> On Aug 9, 8:23 am, "david.waldrop" <david.wald...@gmail.com> wrote:
>
>
>
> > Sorry to keep adding to this thread, but I think this is still
> > related.
>
> > Now that I have the separate database in separate folders I have an
> > issue when I delete a community. Not with how to delete the folder,
> > but rather where to place the code. The code below never seems to
> > execute the os.rmdir(... command
>
> > def deletemeeting():
> > if not request.args:
> > session.flash = 'Invalid parameter'
> > redirect(URL(r=request, c='default', f='index'))
>
> > crud.settings.delete_next =
> > URL(r=request,c='meetings',f='mymeetings')
>
> > meeting = db(db.meeting.id == request.args(0)).select()
>
> > if len(meeting):
> > meeting = meeting[0]
> > app=meeting.name
> > else:
> > session.flash = 'Invalid meeting'
> > redirect(URL(r=request,c='default',f='index'))
>
> > form=crud.delete(db.meeting,meeting.id)
>
> > if form.accepts(request.vars, session):
> > app=meeting.name # somehow determine which name
> > db_path = os.path.join(request.folder,'databases',app)
> > os.path.rmdir(db_path)
> > #redirect(URL(r=request,c='meetings',f='mymeetings'))
> > elif form.errors:
> > response.flash = 'Invalid data.'
> > return dict(form=form)
>
> > I see there is a method in crud.ondelete but do not know how to
> > reference the name of the community (app=meeting.name in above code)
> > that got deleted.
>
> > On Aug 7, 11:37 am, "david.waldrop" <david.wald...@gmail.com> wrote:
>
> > > this one worked:
>
> > > mtgdb=DAL('sqlite://storage.sqlite', folder=db_path)
>
> > > very cool..... thanks a million
>
> > > On Aug 7, 11:20 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > please try both
>
> > > > mtgdb=DAL('sqlite://%s/storage.sqlite' % app, folder=db_path)
>
> > > > and
>
> > > > mtgdb=DAL('sqlite://storage.sqlite', folder=db_path)
>
> > > > I am sure one works but I do not recall which one. Let us know.
>
> > > > On Aug 7, 8:55 am, "david.waldrop" <david.wald...@gmail.com> wrote:
>
> > > > > well almost perfectly. below is my code:
>
> > > > > app=community.name
> > > > > db_path = os.path.join(request.folder,'databases',app)
> > > > > if not os.path.exists(db_path): os.mkdir(db_path)
> > > > > mtgdb=DAL('sqlite://%s/storage.sqlite' % app)
>
> > > > > mtgdb.define_table(
> > > > > 'thoughts',
> > > > > Field('description','text'),
> > > > > Field('author','string'),
> > > > > Field('votes','integer')
> > > > > )
> > > > > mtgdb.thoughts.description.requires = IS_NOT_EMPTY()
>
> > > > > the result is a new sub-folder created in the databases folder of my
> > > > > app with the name of the ciommunity. The problem is the "thoughts"
> > > > > table is not created in the community sub-folder, but rather the
> > > > > databases folder. I looked up the syntax of the define_table method,
> > > > > buit do not see a way to override the location.
>
> > > > > On Aug 7, 9:38 am, "david.waldrop" <david.wald...@gmail.com> wrote:
>
> > > > > > worked perfectly. I am a happy camper. One thing I am uneasy with
> > > > > > is
> > > > > > knowing if it's "ok" to define databases and tables in a controller,
> > > > > > where to put inport statements, and in general how to partition
> > > > > > code.
> > > > > > Is there a particilarly good app you would recccomend as a reference
> > > > > > or a place to read about web2py application architecture???
>
> > > > > > On Aug 7, 7:39 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > > > > instead of
>
> > > > > > > db=DAL('sqlite://storage.sqlite')
>
> > > > > > > do
>
> > > > > > > app='...' # somehow determine which name
> > > > > > > db_path = os.path.join(request.folder,'databases',app)
> > > > > > > if not os.path.exists(db_path): os.mkdir(db_path)
> > > > > > > db=DAL('sqlite://%s/storage.sqlite' % app)
>
> > > > > > > On Aug 7, 6:33 am, "david.waldrop" <david.wald...@gmail.com>
> > > > > > > wrote:
>
> > > > > > > > I have now got the url working via DNS as suggested. But
> > > > > > > > encountered
> > > > > > > > another problem. I would like for each community to have a
> > > > > > > > separate
> > > > > > > > database. Whenever I creaet a new community database and
> > > > > > > > corresponding tables they are physically intermixed with teh
> > > > > > > > SQLLite
> > > > > > > > storage folder of the main/global database. How can I get the
> > > > > > > > current
> > > > > > > > storage location and create new folders in the OS to house the
> > > > > > > > corresponding database and table files. Below is an
> > > > > > > > illustration of
> > > > > > > > what I would the resulting file structure to be want:
>
> > > > > > > > MyAPP
> > > > > > > > databases
> > > > > > > > storage.sqlite
> > > > > > > > c2628476264624626_communities.table
> > > > > > > > <<<other global tables>>>>
> > > > > > > > My first community
> > > > > > > > storage.sqlite
> > > > > > > > d32753728973493784_events.table
> > > > > > > > <<<other tables related to "My first community"
> > > > > > > > Fox Hills Swim Club
> > > > > > > > storage.sqlite
> > > > > > > > e98738957375937_events.table
>
> > > > > > > > Note: Each community will have the same tables (bit obviously
> > > > > > > > with
> > > > > > > > different data) and I realize this is specific to sqlite (which
> > > > > > > > is ok
> > > > > > > > for what I am doing).
>
> > > > > > > > I think that what I do not know how to do is retrieve the
> > > > > > > > current
> > > > > > > > storage location (i.e. folder) and how to specif the location
> > > > > > > > where
> > > > > > > > DAL creates a new database.
>
> > > > > > > > Thanks in advance for your assistance.
>
> > > > > > > > On Jul 24, 11:56 am, Iceberg <iceb...@21cn.com> wrote:
>
> > > > > > > > > Some domain register supports "wild chars" in your domain
> > > > > > > > > name, so all
> > > > > > > > > requests to "*.yourdomain.com" can reach your site.
>
> > > > > > > > > If you prefer the other style, try web2py/route.py
>
> > > > > > > > > On Jul 24, 10:59pm, "david.waldrop" <david.wald...@gmail.com>
> > > > > > > > > wrote:
>
> > > > > > > > > > Thnaks for the reply, but I think I was not clear. I se
> > > > > > > > > > form you
> > > > > > > > > > example how to dynamically point to a seperate DB. But
> > > > > > > > > > regarding the
> > > > > > > > > > url, users can create communities on the fly and henei I
> > > > > > > > > > would like to
> > > > > > > > > > avoid having to register each one with DNS. The main use
> > > > > > > > > > behined a
> > > > > > > > > > seperate URL is to make it easy for communities to be
> > > > > > > > > > shared. So for
> > > > > > > > > > example I could inviet my neoighbor by simply email a link.
> > > > > > > > > > They in
> > > > > > > > > > turn coud do the same and invite others. I was thinking of
> > > > > > > > > > a link
> > > > > > > > > > like this:
>
> > > > > > > > > >www.mydomain.com/mycommunity1 orwww.mydomain.com\tallyhoswimclub
>
> > > > > > > > > > where the suffix uniquely identifies the community. I see
> > > > > > > > > > that web2py
> > > > > > > > > > controls the url naming and am not sure how this scheme
> > > > > > > > > > would impact
> > > > > > > > > > the typical url suffixes that actuall provide functionality
> > > > > > > > > > (i.e.
> > > > > > > > > > about, leit, new posing, etc.) and ofetn related to a view
> > > > > > > > > > and.or
> > > > > > > > > > controler.
>
> > > > > > > > > > Any ideas?
>
> > > > > > > > > > On Jul 22, 6:47 pm, mdipierro <mdipie...@cs.depaul.edu>
> > > > > > > > > > wrote:
>
> > > > > > > > > > > Thanks
>
> > > > > > > > > > > you can do this. register a domain like mydomain.com and
> > > > > > > > > > > access it as
>
> > > > > > > > > > >http://mycommunty.mydomain.com
>
> > > > > > > > > > > in the model file you can do:
>
> > > > > > > > > > > community = request.env.host_name.split('.')[0]
> > > > > > > > > > > db=DAL('sqlite://storage.%s.sqlite' % community)
>
> > > > > > > > > > > and that should be all you need.
>
> > > > > > > > > > > On Jul 22, 1:58 pm, "david.waldrop"
> > > > > > > > > > > <david.wald...@gmail.com> wrote:
>
> > > > > > > > > > > > All, I just discovered this amazing framework and am
> > > > > > > > > > > > immediately
> > > > > > > > > > > > switching to it (from adobe) for a current project I am
> > > > > > > > > > > > working on.
> > > > > > > > > > > > It is quite different from the way I have built
> > > > > > > > > > > > solutions in the
> > > > > > > > > > > > past. Here is the basic structure of how I need to
> > > > > > > > > > > > approach the
> > > > > > > > > > > > problem:
>
> > > > > > > > > > > > 1) I want a user to log in and create a community based
> > > > > > > > > > > > topic.
>
> > > > > > > > > > > > 2) This community topic should have a separate URL and
> > > > > > > > > > > > database. I
> > > > > > > > > > > > desire this for scaleability and privacy. I asume the
> > > > > > > > > > > > url will be
> > > > > > > > > > > > either the community topic name (or a GUID of some
> > > > > > > > > > > > type, and am OK
> > > > > > > > > > > > with this) suffixed to my domain.
>
> > > > > > > > > > > > 3) The organizer can freely share the url with others
> > > > > > > > > > > > in their
> > > > > > > > > > > > neighborhood.
>
> > > > > > > > > > > > 4) All users will be required to register and login in.
>
> > > > > > > > > > > > 5) Users can participate in multiple community topics.
> > > > > > > > > > > > I think this
> > > > > > > > > > > > means there is a central database storing community
> > > > > > > > > > > > topics and
> > > > > > > > > > > > participating users, thereby allowing the user to see a
> > > > > > > > > > > > list of
> > > > > > > > > > > > community topics in which they are participating when
> > > > > > > > > > > > they log in.
> > > > > > > > > > > > When they select a community topic (ideally represented
> > > > > > > > > > > > by a URL to
> > > > > > > > > > > > aid in easily sharing) the app must somehow switch the
> > > > > > > > > > > > underlying
>
> ...
>
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