Re: installer

[Mike Dewhirst]

On 25/04/2011 5:14am, ydjango wrote:

Thanks Mike, I will use what you suggested as interim step and to
automate my own processes.


I want to provide it as shrink wrapped downloadable software that
customer can install via guided install.
And I do not want provide the source code.


Bit out of my area. I typically use distutils setup.py.

I have used py2exe for Windows which delivers compiled code and more or 
less hides the source but that was only so that I could deliver working 
software to machines without a Python installation.


Not sure what to recommend ...

Mike


What would be the best way to do it? - Any tools that can help me?

On Apr 4, 9:57 pm, Mike Dewhirst  wrote:

On 5/04/2011 12:04pm,ydjangowrote:


Is there a package or easy way to create an installer to auto install
apache, django, mysql based web app?

The best way is to script the installation. Google for "scripted
installs" or similar. You should find some examples you can
rework to suit your needs.

I think this is a very healthy way to install stuff just in case you
need to repeat the process on another machine. The scripts leave a nice
record of what you have installed.


There could be some manual steps like installing mysql and providing
setup screens to enter connection data to mysql and mail server.
I would want to at minimum, when installer is run by user, auto
install all the many python packages, install django and build my app,
and delete py files automatically.

For Python applications you can also script installation. I usually call
the Python script at the end of the os instyallation script. I use pip
and here is an example. I uncomment lines as required and comment them
out again after a successful install so I don't accidentally re-install.
You need to study the documentation for pip if you decide to use it ...

#
# requires 1. setuptools and 2. pip
#
#pip install django
#pip install markdown
#pip install psycopg2
#pip install south
#pip install django-tagging
#pip install django-cms
# having trouble with buildbot/twisted - debug via /usr/local/lib64
#pip install buildbot
#pip install akismet

Mike


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Re: Checking for user type in view

[Mike Dewhirst]

On 25/04/2011 7:15am, Kenny Meyer wrote:

Hello guys,

In my application models I have two models, Judge and Participant:


Another way might be to use django groups. Have a participant group and 
a judge group and pop your users into one or the other.


I prefer this approach for my own purposes because it means the user can 
be either or both. When it comes right down to it they are both users.


Mike


   from django.contrib.auth.models import User

   class Judge(User):
   pass

   class Participant(User):
   pass

In my view I want to find out if the authenticated user is either a
Judge or a Participant. How can I do that?


I have done the following, and it works most of the time for me:

def index(request):
 user = request.user
 if user.is_authenticated():
 if user.is_superuser:
 return redirect('/admin')

 judge = None
 participant = None
 competition = None
 try:
 participant = user.participant or None
 judge = user.judge or None
 if participant:
 competition = participant.competition
 if judge:
 competition = judge.competition
 except Participant.DoesNotExist, e:
 pass
 except Judge.DoesNotExist, e:
 pass
 except Exception, e:
 raise
 # Do some more stuff...

But this is ugly. It would be cool if you could come up with better ideas.


Kenny



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Re: How to register EmployeeAdmin using atributes in Person class

[Ernesto Guevara]

I still having a little problem using OneToOne relationship and Edit form.
The forms are created with combobox and get all address in database, i need
the address of the specific Employee only.

Anybody know fix this problem?

Thanks!

2011/4/23 Guevara 

> I got put in the form of employee the form of Houses using
> StackedInline:
>
>
> class HouseInline(admin.StackedInline):
>model = House
>max_num = 1
>
> class EmployeeAdmin(admin.ModelAdmin):
>search_fields = ['person__name','person__cpf']
>list_display = ("name","cpf","date_born","date_inclusion")
>ordering = ["-name"]
> list_filter = ("date_inclusion",)
>list_per_page = 10
> inlines = [HouseInline]
>
> admin.site.register(Employee, EmployeeAdmin)
>
> Now I need collapse the forms of Houses in edit form of Employee, if I
> register mora than 2 houses, I have two forms of Houses in edit form
> employee. =/
> And the address combobox still showing all address register in
> database, i need show olnly adress of employee or adress of the house.
>
> Thanks.
>
>
>
>
> On 23 abr, 12:46, Guevara  wrote:
> > Thank you Ramiro!
> >
> > Now i have the atributes Person in form Employee. =)
> >
> > I added the attribute address and house in Employee class:
> >
> > models.py
> >
> > class Employee(Person):
> > person = models.OneToOneField(Person, parent_link=True)
> > # Relationship OneToOne with Address
> > address = models.OneToOneField(Address)
> > # Relationship with Houses
> > house = models.ForeignKey(Houses)
> >
> > def __unicode__(self):
> > if self.person:
> > return "%s %s (%s)" % (self.name, self.tel, self.address)
> > else:
> > return "%s (%s)" % (self.name, self.address)
> >
> > admin.py
> >
> > from django.contrib import admin
> > from imobiliaria.employee.models import Employee
> > admin.site.register(Employee)
> >
> > But when registering a new Employee, the form show in the combobox
> > others addresses and other houses of other entries, you know how I can
> > fix?
> >
> > Thanks!!
> >
> > On 23 abr, 00:22, Ramiro Morales  wrote:
> >
> >
> >
> >
> >
> >
> >
> > > On Fri, Apr 22, 2011 at 11:55 PM, Guevara 
> wrote:
> > > > [...]
> >
> > > > class Person(models.Model):
> > > >name = models.CharField(max_length=50)
> > > >date_inclusion = models.DateField()
> >
> > > > class Employee(models.Model):
> > > >person = models.OneToOneField(Pessoa)
> >
> > > > I reed this dochttp://
> docs.djangoproject.com/en/dev/ref/contrib/admin/
> > > > but could not find this information.
> >
> > > Try with
> >
> > > class Employee(Person):
> > > person = models.OneToOneField(Person, parent_link=True)
> >
> > > or simply with
> >
> > > class Employee(Person):
> > > pass
> >
> > > It you don't want/need control of the name of the 1to1 relationship
> > > between Employee and Person.
> >
> > > Also, see
> >
> > >
> http://docs.djangoproject.com/en/dev/ref/models/fields/#onetoonefield
> ..
> >
> > > --
> > > Ramiro Morales
>
> --
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>
>

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Re: avatar or thumbnails

[Eric Hutchinson]

PIL (Python Imaging library) is the engine that pretty much powers
this functionality on most sites.

TO make it easier, look at the sorl and imagekit apps, they do all the
heavy lifting for you.

On Apr 24, 10:20 pm, xeed  wrote:
> hi im noob in django, i need help, i want have an avatar or thumbnail
> in my project, but i have nothing idea how i can integrate in my
> project, I have python 27, and django 1.3
> i need a sample project with avatar or thumbnail inside the sample,
> then i will see how integrate in my project.
>
> thks a lot in advance for your help

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avatar or thumbnails

[xeed]

hi im noob in django, i need help, i want have an avatar or thumbnail
in my project, but i have nothing idea how i can integrate in my
project, I have python 27, and django 1.3
i need a sample project with avatar or thumbnail inside the sample,
then i will see how integrate in my project.

thks a lot in advance for your help

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Re: Ajax headers not work in all browsers?

[Daniel França]

Here's the header in request as seen from Firebug:
Request Headers
Hostlocalhost:8000User-Agent Mozilla/5.0 (X11; Linux i686 on x86_64; rv:2.0)
Gecko/20100101 Firefox/4.0Accept
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language en-us,en;q=0.5Accept-Encodinggzip, deflate Accept-Charset
ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive115Connection keep-aliveReferer
http://localhost:8000/home2
Cookie__utma=111872281.1574255346.1303689518.1303691822.1303693660.3;
__utmc=111872281;
__utmz=111872281.1303689518.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);
sessionid=498174cb74222f0570fead661c787935; __utmb=111872281.5.10.1303693660
2011/4/24 Daniel França 

> There are some django middleware classes to test the browser compatibility,
> can it be a problem?
>
> There's no cross domain call, it's all about my domain =/
> It's necessary to set the mimetype in a get/load method?
> What else information can I post here to help?
>
>
> On Sun, Apr 24, 2011 at 2:44 AM, Masklinn  wrote:
>
>> On 24 avr. 2011, at 04:38, Daniel França  wrote:
>>
>> Hi all,
>> I was using JQuery to retrieve some data using AJAX and Django...
>> at my django view code I wrote a verification to check if it's an ajax
>> request:
>> *if request.is_ajax():*
>> *   #Ajax handler*
>> *else:*
>> *  #Not Ajax handler*
>>
>> and do the properly handler, and here's my Jquery script:
>> $('#id_show_updates').load("/profiles/get_updates/"+
>> document.getElementById('last_update').innerHTML);
>>
>> It's working like a charm in Chrome and Opera... but at Firefox django
>> thinks it's not Ajax and  =/ Anyone know someway to solve that?
>>
>> Best Regards,
>> Daniel França
>>
>> Would you per chance have some kind of redirection (any redirection) per
>> chance?
>>
>> Firefox will not forward any explicitly set header (including Ajax ones)
>> across redirections.
>>
>> --
>> 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.
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>> django-users+unsubscr...@googlegroups.com.
>> For more options, visit this group at
>> http://groups.google.com/group/django-users?hl=en.
>>
>
>

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Re: Checking for user type in view

[Kenny Meyer]

On Sun, Apr 24, 2011 at 5:23 PM, Shawn Milochik  wrote:
> It's not recommended that you subclass User.
>
> Better: Create a class to use for a user profile and associate it with
> the User using the instructions here:
>
> http://docs.djangoproject.com/en/1.3/topics/auth/#storing-additional-information-about-users

I should have read that section before. This is much better in the long run.

Thanks, Shawn.

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Re: Checking for user type in view

[Kenny Meyer]

> I have done the following, and it works most of the time for me:
>
> def index(request):
>    user = request.user
>    if user.is_authenticated():
>        if user.is_superuser:
>            return redirect('/admin')
>
>        judge = None
>        participant = None
>        competition = None
>        try:
>            participant = user.participant or None
>            judge = user.judge or None
>            if participant:
>                competition = participant.competition
>            if judge:
>                competition = judge.competition
>        except Participant.DoesNotExist, e:
>            pass
>        except Judge.DoesNotExist, e:
>            pass
>        except Exception, e:
>            raise
>    # Do some more stuff...

Actually this *doesn't* work most of the time for me, because the
moment user.participant raises an exception I'm screwed.

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Re: Checking for user type in view

[Shawn Milochik]

It's not recommended that you subclass User.

Better: Create a class to use for a user profile and associate it with
the User using the instructions here:

http://docs.djangoproject.com/en/1.3/topics/auth/#storing-additional-information-about-users

Then give that class a 'role' field or something and use that. You can
use request.user.get_profile() to get at it in your views. It's
cleaner and easier than subclassing User.

Shawn

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Checking for user type in view

[Kenny Meyer]

Hello guys,

In my application models I have two models, Judge and Participant:

  from django.contrib.auth.models import User

  class Judge(User):
  pass

  class Participant(User):
  pass

In my view I want to find out if the authenticated user is either a
Judge or a Participant. How can I do that?


I have done the following, and it works most of the time for me:

def index(request):
user = request.user
if user.is_authenticated():
if user.is_superuser:
return redirect('/admin')

judge = None
participant = None
competition = None
try:
participant = user.participant or None
judge = user.judge or None
if participant:
competition = participant.competition
if judge:
competition = judge.competition
except Participant.DoesNotExist, e:
pass
except Judge.DoesNotExist, e:
pass
except Exception, e:
raise
# Do some more stuff...

But this is ugly. It would be cool if you could come up with better ideas.


Kenny

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Re: installer

[ydjango]

Thanks Mike, I will use what you suggested as interim step and to
automate my own processes.


I want to provide it as shrink wrapped downloadable software that
customer can install via guided install.
And I do not want provide the source code.

What would be the best way to do it? - Any tools that can help me?

On Apr 4, 9:57 pm, Mike Dewhirst  wrote:
> On 5/04/2011 12:04pm,ydjangowrote:
>
> > Is there a package or easy way to create an installer to auto install
> > apache, django, mysql based web app?
>
> The best way is to script the installation. Google for "scripted
> installs " or similar. You should find some examples you can
> rework to suit your needs.
>
> I think this is a very healthy way to install stuff just in case you
> need to repeat the process on another machine. The scripts leave a nice
> record of what you have installed.
>
> > There could be some manual steps like installing mysql and providing
> > setup screens to enter connection data to mysql and mail server.
> > I would want to at minimum, when installer is run by user, auto
> > install all the many python packages, install django and build my app,
> > and delete py files automatically.
>
> For Python applications you can also script installation. I usually call
> the Python script at the end of the os instyallation script. I use pip
> and here is an example. I uncomment lines as required and comment them
> out again after a successful install so I don't accidentally re-install.
> You need to study the documentation for pip if you decide to use it ...
>
> #
> # requires 1. setuptools and 2. pip
> #
> #pip install django
> #pip install markdown
> #pip install psycopg2
> #pip install south
> #pip install django-tagging
> #pip install django-cms
> # having trouble with buildbot/twisted - debug via /usr/local/lib64
> #pip install buildbot
> #pip install akismet
>
> Mike

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Re: Ajax headers not work in all browsers?

[Daniel França]

There are some django middleware classes to test the browser compatibility,
can it be a problem?

There's no cross domain call, it's all about my domain =/
It's necessary to set the mimetype in a get/load method?
What else information can I post here to help?

On Sun, Apr 24, 2011 at 2:44 AM, Masklinn  wrote:

> On 24 avr. 2011, at 04:38, Daniel França  wrote:
>
> Hi all,
> I was using JQuery to retrieve some data using AJAX and Django...
> at my django view code I wrote a verification to check if it's an ajax
> request:
> *if request.is_ajax():*
> *   #Ajax handler*
> *else:*
> *  #Not Ajax handler*
>
> and do the properly handler, and here's my Jquery script:
> $('#id_show_updates').load("/profiles/get_updates/"+
> document.getElementById('last_update').innerHTML);
>
> It's working like a charm in Chrome and Opera... but at Firefox django
> thinks it's not Ajax and  =/ Anyone know someway to solve that?
>
> Best Regards,
> Daniel França
>
> Would you per chance have some kind of redirection (any redirection) per
> chance?
>
> Firefox will not forward any explicitly set header (including Ajax ones)
> across redirections.
>
> --
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> "Django users" group.
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> 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.
>

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Re: Ajax headers not work in all browsers?

[Carl Nobile]

It is not exactly clear what your issues are, so I will make a guess
that it is HTTP headers (mimetype). For JSON it should be application/
json, but IE will not work with this even thought it is the required
standard. The solutions to this is to generally use IFRAME's which
means rethinking you implementation.

If the above is not related to your issue then it could be that you
are doing a cross domain call which is not allowed in the AJAX
standard, some browsers will allow it however. There are cross browser
ways of getting around this. In Jquery there is a crossDomain setting
in the .ajax call as of version 1.5 and up.

If none of the above are hitting on your issue you need to be more
specific about your problem then somebody can answer you properly.

~Carl

On Apr 23, 9:38 pm, Daniel França  wrote:
> Hi all,
> I was using JQuery to retrieve some data using AJAX and Django...
> at my django view code I wrote a verification to check if it's an ajax
> request:
> *if request.is_ajax():*
> *   #Ajax handler*
> *else:*
> *  #Not Ajax handler*
>
> and do the properly handler, and here's my Jquery script:
> $('#id_show_updates').load("/profiles/get_updates/"+
> document.getElementById('last_update').innerHTML);
>
> It's working like a charm in Chrome and Opera... but at Firefox django
> thinks it's not Ajax and  =/ Anyone know someway to solve that?
>
> Best Regards,
> Daniel França

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URLs in error messages from form validation

[Daniel Gerzo]

Hello all,

say I have a following form:

class MyForm(forms.Form):
id = forms.IntegerField(max_length=9)
language = forms.CharField(max_length=10)
file = forms.FileField()

And a following pseudo clean method:

def clean(self):
for file in self.files.values():
if file_exists(file):
raise forms.ValidationError('We already have this file 
 here')

return self.cleaned_data

So I want to display a URL in the error message. The text is displayed 
fine, but the URL is being escaped by Django and thus is not clickable. 
Is there some way to disable it for this specific case?


The form is being rendered like:

id="upload">{% csrf_token %}


{{ form.as_table }}
type="reset" value="Reset" />




Thanks.

--
Kind regards
  Daniel Gerzo

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Re: cx_Oracle error: ImproperlyConfigured

[Ian]

On Apr 23, 12:29 pm, kamal sharma  wrote:
> No it was .profile of mine. Now I have set the LD_LIBRARY_PATH in app.wsgi
> as mentioned below and when I print the os.environ in the beginning of
> views.py then it shows that newly added value.

It's clear that your LD_LIBRARY_PATH is fine at this point, since the
library must be loaded in order to get the ORA-01804 error.  The
problem, as Jirka and I have suggested, is that the rest of your
Oracle installation is still not visible to the process, which is
preventing the client from reading its data files.  Why this is the
case is unclear without knowing more details about your system.  Is
the Oracle directory readable by the WSGI user?  Is the WSGI process
running inside a chroot jail?

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Re: django 1.1 performance versus django 1.2 performance

[Alexander Schepanovski]

I am experiencing considerable performance problems with ORM requests,
too. In django 1.2.3.

And I found two slow procedures: first is queryset cloning (sql.Query
objects deepcopying is actually slow) and second - sql generation
(especially, generating list of fields). Both could be a result of
adding new features that made sql.Query objects very complex.

I opened a topic about expensive cloning on django-developers:
http://groups.google.com/group/django-developers/browse_thread/thread/5943bc1bab0711b0/95ab0714ef746469?lnk=gst=queryset+cloning#95ab0714ef746469

and found some people with same problem.

I also use a monkey patch to avoid this problem by making querysets
mutating, not cloning:
https://gist.github.com/872145

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Re: extending a shopping cart

[razafy]

The model vs name issue has to do with lower case vs capitalized
letters .

To get the model attribute look up info in_meta.fields



On Apr 23, 9:52 am, shofty  wrote:
> ok, answering my own question here, kind of.
>
> attempt 1.
> # get the objects for this content type, then choose the object by id
>     ct = ContentType.objects.get_for_model(app_label=app,
> name=content_type)
>     p = ct.get_object_for_this_type(pk=object_id)
>
> the above code works to get the object and allows me to add the object
> to the cart.
>
> im not sure why name=content_type works when model=content_type isnt
> working.
> its got to be to do with the line that populates content_type, which
> is
>
>     form.fields['content_type'].widget.attrs['value'] =
> ContentType.objects.get_for_model(SuspFitment)
>
> so this is returning the name for the model, how would i go about
> returning the model attribute?

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Re: Connecting to a database

[José Pablo Méndez Soto]

Thanks Mate,

Have a good one!


**
On Sun, Apr 24, 2011 at 6:53 AM, Andrew Volozhanin
wrote:

> yes, SQLite doesn't use any SQL server. It consists of a database file.
> That's why you access sqlite databases by the filename.
> But mySQL, postgresql use such servers. And you access them by connecting
> to these servers.
>
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Re: Connecting to a database

[Andrew Volozhanin]

yes, SQLite doesn't use any SQL server. It consists of a database file. 
That's why you access sqlite databases by the filename.
But mySQL, postgresql use such servers. And you access them by connecting to 
these servers.

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Re: Connecting to a database

[José Pablo Méndez Soto]

That makes sense.

Can you please tell me then, if os.path.dirname(os.path.abspath( __file__ ))
+ '/ database/local.db', would be something relative to SQLite?

Many thanks

 *José Pablo Méndez
*


On Sun, Apr 24, 2011 at 1:34 AM, Daniel Roseman wrote:

> On Sunday, April 24, 2011 7:46:43 AM UTC+1, Hurin wrote:
>>
>> Hi,
>>
>> I have a python script where I have to fill the following info to
>> connect to my DB:
>>
>> DATABASES = {
>> 'default': {
>> 'ENGINE': 'sqlite3','mysql', # Add 'postgresql_psycopg2',
>> 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
>> 'NAME': os.path.dirname(os.path.abspath( __file__ )) + '/
>> database/local.db', # Or path to database file if using sqlite3.
>> 'USER': '',  # Not used with sqlite3.
>> 'PASSWORD': '',  # Not used with sqlite3.
>> 'HOST': '',  # Set to empty string for
>> localhost. Not used with sqlite3.
>> 'PORT': '',  # Set to empty string for
>> default. Not used with sqlite3.
>> },
>>
>>
>> I am not familiar with python, I know that os.path.dirname is a way to
>> reference the location where the script is being run, but I am not
>> sure if it is the right syntax to point to my database. Should I leave
>> it like that or would it be something like
>>
>> mysql://localhost:3306/dbName"
>>
>> For reference, I am trying to install CDR-Stats and I have python-
>> django and python-mysqldb installed.
>>
>> Thanks to whoever can point me out in the right direction
>
>
> The file path of the script has nothing to do with this. You need to put in
> how the script accesses the database. For you:
>
>  DATABASES = {
> 'default': {
> 'ENGINE': 'mysql',
> 'NAME': 'dbName',
> 'USER': '',
> 'PASSWORD': '',
> 'HOST': '',
> 'PORT': '',
> },
>
> Your HOST and PORT are the defaults, so they can be left blank. You will
> need to put in the username and password of your MySQL user though.
> --
> DR.
>
> --
> You received this message because you are subscribed to the Google Groups
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>

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Re: extending a shopping cart

[shofty]

yeah, think i've found it.

.model_class()

worked, but game a strange result, so needs more investigation.

thanks for the pointer mate.

On Apr 23, 4:33 pm, Shawn Milochik  wrote:
> Did you check out the docs for adding a generic foreign key to your
> model itself?

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Re: Connecting to a database

[Daniel Roseman]

On Sunday, April 24, 2011 7:46:43 AM UTC+1, Hurin wrote:
>
> Hi, 
>
> I have a python script where I have to fill the following info to 
> connect to my DB: 
>
> DATABASES = { 
> 'default': { 
> 'ENGINE': 'sqlite3','mysql', # Add 'postgresql_psycopg2', 
> 'postgresql', 'mysql', 'sqlite3' or 'oracle'. 
> 'NAME': os.path.dirname(os.path.abspath( __file__ )) + '/ 
> database/local.db', # Or path to database file if using sqlite3. 
> 'USER': '',  # Not used with sqlite3. 
> 'PASSWORD': '',  # Not used with sqlite3. 
> 'HOST': '',  # Set to empty string for 
> localhost. Not used with sqlite3. 
> 'PORT': '',  # Set to empty string for 
> default. Not used with sqlite3. 
> }, 
>
>
> I am not familiar with python, I know that os.path.dirname is a way to 
> reference the location where the script is being run, but I am not 
> sure if it is the right syntax to point to my database. Should I leave 
> it like that or would it be something like 
>
> mysql://localhost:3306/dbName" 
>
> For reference, I am trying to install CDR-Stats and I have python- 
> django and python-mysqldb installed. 
>
> Thanks to whoever can point me out in the right direction


The file path of the script has nothing to do with this. You need to put in 
how the script accesses the database. For you:

 DATABASES = { 
'default': { 
'ENGINE': 'mysql',
'NAME': 'dbName',
'USER': '',
'PASSWORD': '',
'HOST': '',
'PORT': '',
}, 

Your HOST and PORT are the defaults, so they can be left blank. You will 
need to put in the username and password of your MySQL user though.
--
DR.

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Connecting to a database

[Hurin]

Hi,

I have a python script where I have to fill the following info to
connect to my DB:

DATABASES = {
'default': {
'ENGINE': 'sqlite3','mysql', # Add 'postgresql_psycopg2',
'postgresql', 'mysql', 'sqlite3' or 'oracle'.
'NAME': os.path.dirname(os.path.abspath( __file__ )) + '/
database/local.db', # Or path to database file if using sqlite3.
'USER': '',  # Not used with sqlite3.
'PASSWORD': '',  # Not used with sqlite3.
'HOST': '',  # Set to empty string for
localhost. Not used with sqlite3.
'PORT': '',  # Set to empty string for
default. Not used with sqlite3.
},


I am not familiar with python, I know that os.path.dirname is a way to
reference the location where the script is being run, but I am not
sure if it is the right syntax to point to my database. Should I leave
it like that or would it be something like

mysql://localhost:3306/dbName"

For reference, I am trying to install CDR-Stats and I have python-
django and python-mysqldb installed.

Thanks to whoever can point me out in the right direction

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