Hello to all!
I am writing a small Django application and I should be able to create
for each model object its periodical task which will be executed with
a certain interval. I'm use for this a Celery application, but i can't understand one thing:
class ProcessQueryTask(PeriodicTask):
run_every = timedelta(minutes=1)
def run(self, query_task_pk, **kwargs):
logging.info('Process celery task for QueryTask %d' %
query_task_pk)
task = QueryTask.objects.get(pk=query_task_pk)
task.exec_task()
return True
Then i'm do following:
>>> from tasks.tasks import ProcessQueryTask
>>> result1 = ProcessQueryTask.delay(query_task_pk=1)
>>> result2 = ProcessQueryTask.delay(query_task_pk=2)
First call is success, but other periodical calls returning the error
- TypeError: run() takes exactly 2 non-keyword arguments (1 given) in
celeryd server.
So, can i pass own params to PeriodicTask run() ?
Thanks!
I have a form in which I can input text through text boxes.
How do I make these data go into the db on clicking submit.
this is the code of the form in the template.
<form method="post" action="app/save_page">
<p>
Title:<input type="text" name="title"/>
</p>
<p>
Name:<input type="text" name="name"/>
</p>
<p>
Phone:<input type="text" name="phone"/>
</p>
<p>
Email:<input type="text" name="email"/>
</p>
<p>
<textarea name="description" rows=20 cols=60>
</textarea><br>
</p>
<input type="submit" value="Submit"/>
</form>
I have a function in the views.py for saving the data in the page. But I dont know how to impliment it properly:
def save_page(request):
title = request.POST["title"]
name = request.POST["name"]
phone = request.POST["phone"]
email = request.POST["email"]
description = request.POST["description"]
Now how do I send these into the db?
And what do I put in views.py so that those data goes into the db?
so how do I open a database connection and put those into the db and save it?
should I do something like :
connection=sqlite3.connect('app.db')
cursor= connection.cursor()
.....
.....
connection.commit()
connection.close()
Thank you.
I'm working on a PyGTK app with some Buttons that, when clicked, give a text entry dialog, then set the text on the button to whatever was entered in the box. The problem is that if the text is longer than the button can show, the button changes size to accomodate. How do I keep GTK Buttons from resizing when the text changes?
I want to have a twisted service (started via twistd) which listens to TCP/POST request on a specified port on a specified IP address. By now I have a twisted application which listens to port 8040 on localhost. It is running fine, but I want it to only listen to a certain IP address, say 10.0.0.78.
How-to manage that? This is a snippet of my code:
application = service.Application('SMS_Inbound')
smsInbound = resource.Resource()
smsInbound.putChild('75sms_inbound',ReceiveSMS(application))
smsInboundServer = internet.TCPServer(8001, webserver.Site(smsInbound))
smsInboundServer.setName("SMS Handling")
smsInboundServer.setServiceParent(application)
Hello,
I have 3 panels and I want to make drags on them.
The problem is that when I do a drag on one this happens:
How can I refresh the frame to happear its color when the panel is no longer there?
MYMESSAGE = "<div>Hello</div><p></p>Hello"
send_mail("testing",MYMESSAGE,"[email protected]",['[email protected]'],fail_silently=False)
However, this message doesn't get the HTML mime type when it is sent. In my outlook, I see the code...
Let's say I have this list of asterisks, and I say it to print this way:
list = ['* *', '*', '* * *', '* * * * *', '* * * * * *', '* * * *']
for i in list:
print i
So here, the output is:
* *
*
* * *
* * * * *
* * * * * *
* * * *
But I want the output to be vertical, like this:
* * * * * *
* * * * *
* * * *
* * *
* *
*
Any tips on doing this? I've tried to conceptualize how to use things like list comprehension or for-loops for this, but haven't got it quite right.
Hi all,
I find I've been confused by the problem that when I needn't to use try..except.For last few days it was used in almost every function I defined which I think maybe a bad practice.For example:
class mongodb(object):
def getRecords(self,tname,conditions=''):
try:
col = eval("self.db.%s" %tname)
recs = col.find(condition)
return recs
except Exception,e:
#here make some error log with e.message
What I thought is ,exceptions may be raised everywhere and I have to use try to get them.
And my question is,is it a good practice to use it everywhere when defining functions?If not are there any principles for it?Help would be appreciated!
Regards
Hi everyone,
I have built PyQt4 from source and everything went smoothly until I tried to use some of the classes and attributes located in QtCore. For some reason QtCore is missing a lot of functionality and data that should be there. For example from PyQt4.QtCore import QT_VERSION_STR is an import error. There were no errors or warnings given when building the packages and I have also tried with the PyQt packages from yum but I have the same problem.
Has anyone else encountered this problem before?
Thanks.
class a(object):
c=b()# how to call the b method
d=4
def __init__(self):
print self.c
def b(self):
return self.d+1
a()
how to call the 'b' method not in the __init__
thanks
the error is :
Traceback (most recent call last):
File "D:\zjm_code\a.py", line 12, in <module>
class a(object):
File "D:\zjm_code\a.py", line 13, in a
c=b()# how to call the b method
NameError: name 'b' is not defined
Currently, i am querying with this code: meta.Session.query(Label).order_by(Label.name).all()
and it returns me objects sorted by Label.name in this manner ['1','7','1a','5c']. Is there a way i can have the objects returned in the order with their Label.name sorted like this ['1','1a','5c','7']
Thanks!
import inspect
class Test:
def test(self, p, d={}):
d.update(p)
return d
print inspect.getargspec(getattr(Test, 'test'))[3]
print Test().test({'1':True})
print inspect.getargspec(getattr(Test, 'test'))[3]
I would expect the argspec for Test.test not to change but because of dict.update it does. Why?
I have a folder full of files and i want to search some string inside them. The issue is that some files may be zip,exe,ogg,etc.
Can i check somehow what kind of file is it so i only open and search through txt, php, etc files.
I can't rely on the file extension.
For formatting a date using date filter you must use the following format :
{{ my_date|date:"Y-m-d" }}
If you use strftime from the standard datetime, you have to use the following :
my_date.strftime("%Y-%m-%d")
So my question is ... isn't it ugly (I guess it is because of the % that is used also for tags, and therefore is escaped or something) ?
But that's not the main question ... I would like to use the same DATE_FORMAT parametrized in settings.py all over the project, but it therefore seems that I cannot ! Is there a work around (for example a filter that removes the % after the date has been formatted like {{ my_date|date|dream_filter }}, because if I just use DATE_FORMAT = "%Y-%m-%d" I got something like %2001-%6-%12)?
I am having problem getting this piece of code to run. The class is Student which has a IdCounter, and it is where the problem seems to be. (at line 8)
class Student:
def __init__(self):
# Each student get their own student ID
idCounter = 0
self.gpa = 0
self.record = {}
# Each time I create a new student, the idCounter increment
idCounter += 1
self.name = 'Student {0}'.format(Student.idCounter)
classRoster = [] # List of students
for number in range(25):
newStudent = Student()
classRoster.append(newStudent)
print(newStudent.name)
I am trying to have this idCounter inside my Student class, so I can have it as part of the student's name (which is really an ID#, for example Student 12345. But I have been getting error.
Traceback (most recent call last):
File "/Users/yanwchan/Documents/test.py", line 13, in <module>
newStudent = Student()
File "/Users/yanwchan/Documents/test.py", line 8, in __init__
idCounter += 1
UnboundLocalError: local variable 'idCounter' referenced before assignment
I tried to put the idCounter += 1 in before, after, all combination, but I am still getting the referenced before assignment error, can you explain to me what I am doing wrong? Thank you
Edit: Provided the full code I have
Currently I have a website on the Google App Engine written in Google's webapp framework. What I want to know is what are the benefits of converting my app to run with django? And what are the downsides? Also how did you guys code your GAE apps? Did you use webapp or django? Or did you go an entirely different route and use the Java api?
Thanks
Hi everyone.
This question is in continuation to my previous question, in which I asked about passing around an ElementTree.
I need to read the XML files only and to solve this, I decided to create a global ElementTree and then parse it wherever required.
My question is:
Is this an acceptable practice? I heard global variables are bad. If I don't make it global, I was suggested to make a class. But do I really need to create a class? What benefits would I have from that approach. Note that I would be handling only one ElementTree instance per run, the operations are read-only. If I don't use a class, how and where do I declare that ElementTree so that it available globally? (Note that I would be importing this module)
Please answer this question in the respect that I am a beginner to development, and at this stage I can't figure out whether to use a class or just go with the functional style programming approach.
I am trying some simple c API, where I am using PyCapsule_New to encapsulate a pointer. I am running into segment violation, can some body help me.
mystruct *func1(int streamno, char mode,unsigned int options)
{
char * s;
s=malloc(100);
return s;
}
PyObject *Wrapper_func1(PyObject *self, PyObject *args)
{
int streamno;
char mode;
unsigned int options;
mystruct* result;
if (!PyArg_ParseTuple(args,"icI",&streamno,&mode,&options))
return NULL;
result = func1(streamno,mode,options);
return PyCapsule_New( result,NULL,NULL);
}
Is there any library that achieves the following:
Convert
Microsoft Windows 98
Microsoft Windows XP
Windows 7
Windows Ultimate
Desktop Windows
to
Windows 4
The complicated part here is to recognize that "Desktop Windows" is an anomaly here and not count it. If nothing is added before the word "Windows", perhaps it can be counted but if there is something else and the suffix does not match any popular suffix, it can still be counted.
Maybe I am a little vague here but perhaps someone could have an idea about what I am talking about here. Any suggestions?
If I have an entity derived from db.Expando I can write Dynamic property by just assigning a value to a new property, e.g. "y" in this example:
class MyEntity(db.Expando):
x = db.IntegerProperty()
my_entity = MyEntity(x=1)
my_entity.y = 2
But suppose I have the name of the dynamic property in a variable... how can I (1) read and write to it, and (2) check if the Dynamic variable exists in the entity's instance? e.g.
class MyEntity(db.Expando):
x = db.IntegerProperty()
my_entity = MyEntity(x=1)
# choose a var name:
var_name = "z"
# assign a value to the Dynamic variable whose name is in var_name:
my_entity.property_by_name[var_name] = 2
# also, check if such a property esists
if my_entity.property_exists(var_name):
# read the value of the Dynamic property whose name is in var_name
print my_entity.property_by_name[var_name]
Thanks...
I have the following models in my Django app. How can I from the Team model find all the User objects who have accepted as True in the Membership model? I know I need to use Team.objects.filter(), but I'm not sure how to check the value of the accepted field.
from django.contrib.auth.models import User
class Team(models.Model):
members = models.ManyToManyField(User, through="Membership")
class Membership(models.Model):
user = models.ForeignKey(User)
team = models.ForeignKey(Team)
accepted = models.BooleanField(default=False)
i want to find a webapp framework for validation user , store user,
and has ajax Effect of jquery ,
so ,did you know this simply framework ?
thanks
like this page : http: //digu.com/reg
Suppose I have my models set up already.
class books(models.Model):
title = models.CharField...
ISBN = models.Integer...
What if I want to add this column to my table?
user = models.ForeignKey(User, unique=True)
How would I write the raw SQL in my database so that this column works?
I am trying to add a feature to my app that would allow me to enable/disable the "Call Me" button based on whether or not I am at [home|the office]. I created a model in the database called setting, it looks like this:
class setting(models.Model):
key = models.CharField(max_length=200)
value = models.CharField(max_length=200)
Pretty simple. There is currently one row, available, the value of it is the string True. I want to be able to transparently pass variables to the templates like this:
{% if available %}
<!-- Display button -->
{% else %}
<!-- Display grayed out button -->
{% endif %}
Now, I could add logic to every view that would check the database, and pass the variable to the template, but I am trying to stay DRY.
What is the best way to do this?
UPDATE
I created a context processor, and added it's path to the TEMPLATE_CONTEXT_PROCESSORS, but it is not being passed to the template
def available(request):
available = Setting.objects.get(key="available")
if open.value == "True":
return {"available":True}
else:
return {}
UPDATE TWO
If you are using the shortcut render_to_response, you need to pass an instance of RequestContext to the function.
from the django documentation:
If you're using Django's render_to_response() shortcut to populate a template with the contents of a dictionary, your template will be passed a Context instance by default (not a RequestContext). To use a RequestContext in your template rendering, pass an optional third argument to render_to_response(): a RequestContext instance. Your code might look like this:
def some_view(request):
# ...
return render_to_response('my_template.html',
my_data_dictionary,
context_instance=RequestContext(request))
Many thanks for all the help!