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  • foreignkey problem

    - by realshadow
    Hey, Imagine you have this model: class Category(models.Model): node_id = models.IntegerField(primary_key = True) type_id = models.IntegerField(max_length = 20) parent_id = models.IntegerField(max_length = 20) sort_order = models.IntegerField(max_length = 20) name = models.CharField(max_length = 45) lft = models.IntegerField(max_length = 20) rgt = models.IntegerField(max_length = 20) depth = models.IntegerField(max_length = 20) added_on = models.DateTimeField(auto_now = True) updated_on = models.DateTimeField(auto_now = True) status = models.IntegerField(max_length = 20) node = models.ForeignKey(Category_info, verbose_name = 'Category_info', to_field = 'node_id' The important part is the foreignkey. When I try: Category.objects.filter(type_id = 15, parent_id = offset, status = 1) I get an error that get returned more than category, which is fine, because it is supposed to return more than one. But I want to filter the results trough another field, which would be type id (from the second Model) Here it is: class Category_info(models.Model): objtree_label_id = models.AutoField(primary_key = True) node_id = models.IntegerField(unique = True) language_id = models.IntegerField() label = models.CharField(max_length = 255) type_id = models.IntegerField() The type_id can be any number from 1 - 5. I am desparately trying to get only one result where the type_id would be number 1. Here is what I want in sql: SELECT c.*, ci.* FROM category c JOIN category_info ci ON (c.node_id = ci.node_id) WHERE c.type_id = 15 AND c.parent_id = 50 AND ci.type_id = 1 Any help is GREATLY appreciated. Regards

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  • Python how to execute generate code ?

    - by Natim
    Hello guys I have this code, and I would like to use the app parameter to generate the code instead of duplicating it. if app == 'map': try: from modulo.map.views import map return map(request, *args, **kwargs) except ImportError: pass elif app == 'schedule': try: from modulo.schedule.views import schedule_day return schedule_day(request, *args, **kwargs) except ImportError: pass elif app == 'sponsors': try: from modulo.sponsors.views import sponsors return sponsors(request, *args, **kwargs) except ImportError: pass elif app == 'streaming': try: from modulo.streaming.views import streaming return streaming(request, *args, **kwargs) except ImportError: pass Do you have any idea ? Thanks

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  • Python: how to execute generated code ?

    - by Natim
    Hello guys I have this code, and I would like to use the app parameter to generate the code instead of duplicating it. if app == 'map': try: from modulo.map.views import map return map(request, *args, **kwargs) except ImportError: pass elif app == 'schedule': try: from modulo.schedule.views import schedule_day return schedule_day(request, *args, **kwargs) except ImportError: pass elif app == 'sponsors': try: from modulo.sponsors.views import sponsors return sponsors(request, *args, **kwargs) except ImportError: pass elif app == 'streaming': try: from modulo.streaming.views import streaming return streaming(request, *args, **kwargs) except ImportError: pass Do you have any idea ? Thanks

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  • iOS Application Background Downloading

    - by Hankweb
    Hey! I need to know how I can have my iOS Application start a download in the background of the application (like, have the download run in the AppDelegate file) so changing ViewControllers will not interrupt or cancel the download. I also need to be able to get the progress of the download (0.00000 - 1.00000), to set a UIProgressView object to, which also means I need a - (void)progressDidChangeTo:(int)progress function.

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  • What is the best web-based File Explorer?

    - by Vincent
    I would like to know what you think is the best web-based File Explorer to manage files in a remote server through HTTP / Web. It would be preferable to have PHP or Flash technology, but any good suggestion would do. More generally, how would you allow someone to manage files on a remote server with HTTP being the only open outgoing port?

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  • A question about writing a background/automatic/silent downloader/installer for an app in C#.

    - by Mike Webb
    Background: I have a main application that needs to be able to go to the web and download DLL files associated with it (ones that we write, located on our server). It really needs to be able to download these DLL files to the application folder in "C:\Program Files\". In the past I have used System.Net.WebClient to download whatever files I wanted from the web. The Issue I have had a lot of trouble downloading data in the past and saving to files on a user's hard drive. I get many reports of users saying that this does not work and it is generally because of user rights issues in the program. In the cases where it was an issue with program user rights every user could go to the exact file location on the web, download it, and then save it to the right place manually. I want this to work like all the other programs I have seen download/install in this fassion (i.e. Firefox Pluign Updates, Flash Player, JAVA, Adobe Reader, etc). All of these work without a hitch. The Question Is there some code I need to use to give my downloader program special rights to the Program Files folder? Can I even do this? Is there a better class or library that I should use? Is there a different approach to downloading files I should take, such as using threads or something else to download data? Any help here is appreciated. I want to try to stay away from third-party apps/libraries if at all possible, other than Microsoft of course, due to licensing issues, but still send any suggestions my way. Again, other programs seem to have the rights issues and download capability figured out. I want this same capability.

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  • Why can't I install psycopg2? (Python 2.6.4, PostgreSQL 8.4, OS X 10.6)

    - by cojadate
    After running python setup.py install I get the following: Warning: Unable to find 'pg_config' filebuilding 'psycopg2._psycopg' extension gcc-4.0 -arch ppc -arch i386 -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -O3 - DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.2.1 (dt dec ext pq3)" -DPSYCOPG_EXTENSIONS=1 -DPSYCOPG_NEW_BOOLEAN=1 -DHAVE_PQFREEMEM=1 -DHAVE_PQPROTOCOL3=1 -I/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -I. -c psycopg/psycopgmodule.c -o build/temp.macosx-10.3-fat-2.6/psycopg/psycopgmodule.o unable to execute gcc-4.0: No such file or directory error: command 'gcc-4.0' failed with exit status 1 There's probably something screamingly obvious there to anyone who knows the first thing about back-end web programming, but unfortunately it's all gobbledegook to me. The psycopg2 documentation was not helpful.

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  • ajax isUpload (Jquery)

    - by Thomas
    Hi all, I was some time ago busy with ExtJS and ajax. I've have some data in csv format that i return. With ExtJS you can use the option isUpload to popup a file "filename.csv" where you can click save / open etc. Now i'm moving all ExtJS to Jquery and i don't seem to find something which handles this in Jquery, there is no option isUpload in ajax with jquery i guess? Does someone knows how to fix this? Thanks in advance

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  • simplejson double escapes data causing invalid JSON string

    - by mike_hornbeck
    I have a simple form for managing manufacturers in my shop. After posting form, ajax call returns json with updated data to the form. Problem is, that the returned string is invalid. It looks like it was double-escaped. Strangely similar approach across the whole shop works without any problems. I'm also using jquery 1.6 as javascript framework. Model contains of 3 fields : char for name, text for description and image field for manufacturer logo. The function : def update_data(request, manufacturer_id): """Updates data of manufacturer with given manufacturer id. """ manufacturer = Manufacturer.objects.get(pk=manufacturer_id) form = ManufacturerDataForm(request.FILES, request.POST, instance=manufacturer) if form.is_valid(): form.save() msg = _(u"Manufacturer data has been saved.") html = [ ["#data", manufacturer_data_inline(request, manufacturer_id, form)], ["#selectable-factories-inline", selectable_manufacturers_inline(request, manufacturer_id)], ] result = simplejson.dumps({ "html": html }, cls=LazyEncoder) return HttpResponse(result) The error in console : error with invalid JSON : uncaught exception: Invalid JSON: {"html": [["#data", "\n<h2>Dane</h2>\n<div class="\&quot;manufacturer-image\&quot;">\n \n</div>\n<form action="\&quot;/manage/update-manufacturer-data/1\&quot;" method="\&quot;post\&quot;">\n \n <div class="\&quot;field\&quot;">\n <div class="\&quot;label\&quot;">\n <label for="\&quot;id_name\&quot;">Nazwa</label>:\n </div>\n \n \n <div class="\&quot;error\&quot;">\n <input id="\&quot;id_name\&quot;" name="\&quot;name\&quot;" maxlength="\&quot;50\&quot;" type="\&quot;text\&quot;">\n <ul class="\&quot;errorlist\&quot;"><li>Pole wymagane</li></ul>\n </div>\n \n </div>\n\n <div class="\&quot;field\&quot;">\n <div class="\&quot;label\&quot;">\n <label for="\&quot;id_image\&quot;">Zdjecie</label>:\n </div>\n \n \n <div>\n <input name="\&quot;image\&quot;" id="\&quot;id_image\&quot;" type="\&quot;file\&quot;">\n </div>\n \n </div>\n\n <div class="\&quot;field\&quot;">\n <div class="\&quot;label\&quot;">\n <label for="\&quot;id_description\&quot;">Opis</label>:\n </div>\n \n \n <div>\n <textarea id="\&quot;id_description\&quot;" rows="\&quot;10\&quot;" cols="\&quot;40\&quot;" name="\&quot;description\&quot;"></textarea>\n </div>\n \n </div>\n \n <div class="\&quot;buttons\&quot;">\n <input class="\&quot;ajax-save-button" button\"="" type="\&quot;submit\&quot;">\n </div>\n</form>"], ["#selectable-factories-inline", "\n <div>\n <a class="\&quot;selectable" selected\"\n="" href="%5C%22/manage/manufacturer/1%5C%22">\n L1\n </a>\n </div>\n\n <div>\n <a class="\&quot;selectable" \"\n="" href="%5C%22/manage/manufacturer/4%5C%22">\n KR3W\n </a>\n </div>\n\n <div>\n <a class="\&quot;selectable" \"\n="" href="%5C%22/manage/manufacturer/3%5C%22">\n L1TA\n </a>\n </div>\n\n"]]} Any ideas ?

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  • Pinax: Customize Signup and profile

    - by sprezzatura
    I want to gather some more information when the user signs up and also display this as part of the profile information - so that the user can edit it once he creates a login. How do i do this? I did search a lot the docs, but i did not find anything and i did not want to mess up the base code when i change the underlying models/forms.

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  • Simple CMS (php/python)

    - by Eeyore
    I am looking for an easy to use CMS that can be used to host a multilingual website with photo galleries and few forms. I am open to php/python excluding wordpress/joomla/drupal.

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  • Using Page anchors on Google AppEngine?

    - by codingJoe
    I would like to have AppEngine render an html page that auto scrolls to an html anchor point. I'm not how and where to put the that type of instruction. template_values = { 'foo' : 'foo', 'bar': 'bar', 'anchor' : '#MyPageAnchor' # ?? Something like this... } path = os.path.join(os.path.dirname(__file__), fileName) self.response.out.write(template.render(path, template_values)) Is this possible? How do I accomplish this?

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  • Query multiple models with one value

    - by swoei
    I have multiple models which all have a FK to the same model. All I know is the FK how can I determine which of the models has the FK attached? Below an example to clearify: class ModelA(models.Model): title = models.CharField("title", max_length=80) class ModelB(models.Model): fk = models.ForeignKey(ModelA) class ModelC(models.Model): fk = models.ForeignKey(ModelA) How can I figure out without using a try/except on each model whether B or C has the FK? (The FK can only be in one of them, for the record in this case I only added two models but in the real world app there are multiple possible x amount of models which have the FK to modelA)

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  • How do Python and PHP compare for ecommerce?

    - by Ibn Saeed
    If I were to start an ecommerce store, which language would you suggest I start with? Python or PHP? And would it be wise to use Python for an ecommerce site in favor of PHP? PHP has lots of shopping carts, both open source and commercial. Is Python the future of Web Development ? Edit: I would like to clear out that i am not asking for Shopping carts solutions and links to them.

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  • How to limit manytomanyfields on a model ?

    - by Tom
    I would like to check that I get not more than 3 relations set on a manytomanyfield. I tried on the clean method to do this : if self.tags.count()>3: raise ValidationError(_(u'You cannot add more than 3 tags')) But self.tags returns not the current updates... only saved objects. Do you have an idea to access to them ? Thanks

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  • Windows Mobile: "My network card connects to" registry settings

    - by Martin Robins
    Can anybody please tell me the registry setting(s) that are affected in Windows Mobile 6.1 when a user selects Start - Settings - Connections - Wi-Fi and then changes the value of the "My network card connects to" drop down list on the "Network Adapters" tab? I have a device that seems to default this to "The Internet" when in fact the Wi-Fi connects to the corporate network and I would like to be able to change this programatically rather than expecting 250+ users to have to do it manually every time they reboot their devices. Thanks.

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  • Disable logging during manage.py test?

    - by Eric Palakovich Carr
    I utilize the standard python logging module. When I call python manage.py test I'd like to disable logging before all the tests are ran. Is there a signal or some other kind of hook I could use to call logging.disable? Or is there some other way to disable logging when python manage.py test is ran?

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  • Storing GenericForeignKey content_type in another model?

    - by slypete
    I have a typical definition/instance situation in my data modeling. I'm trying to store the content_type of a GenericForeignKey in another model (the definition model) like so: class IndicatorFieldInstance(models.Model): definition = models.ForeignKey(IndicatorField) object_id = models.PositiveIntegerField() content_object = generic.GenericForeignKey(definition.content_type, 'object_id') indicator_instance = models.ForeignKey(IndicatorInstance) I've also tried it like this: content_object = generic.GenericForeignKey('definition__content_type', 'object_id') Neither of these methods seem to work. Is it possible to achieve this? For reference, here's the definition model: class IndicatorField(models.Model): name = models.CharField(max_length='255') content_type = models.ForeignKey(ContentType) indicator = models.ForeignKey(Indicator) Thanks, Pete

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  • Djangobb problem

    - by Djero
    I've installed Djangobb app on my server (Debian, mod_python) by cloning original source. The only things I've changed is database options in settings.py. All needed components are installed - syncdb query was executed right. But, when I'm trying to enter on my forum, it returns me error: ImproperlyConfigured: Error importing middleware django_authopenid.middleware: "No module named djangobb_forum.subscription" I've checked - djangobb_forum/subscription.py exist, so I don't know what can be wrong. Maybe someone had problems like that and know how to fix it? Sorry for my english.

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  • Run intent DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN from a service

    - by Zorb
    I have a service and I want the service promote to enable it as Device Admin, until now I launched this kind of UI interactions from the service like Intent intent2 = new Intent(); intent2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent2.setAction(android.content.Intent.ACTION_VIEW); intent2.setDataAndType(uri, "application/vnd.android.package-archive"); context.startActivity(intent2); and it works, but with DevicePolicyManager I can't find the way: Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mAdminName); intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "some text."); context.startActivity(intent); does't work: do not promote nothing but also do not crash. Without intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); It simply crash because this code is inside a tread inside a service. Ideas?

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  • Is there a chance that sending an email via a thread could ever fail to complete?

    - by Benjamin Dell
    I have a project where I send a couple of emails via a seperet thread, to speed up the process for the end-user. It works successfully, but i was just wondering whether there were any potfalls that i might not have considered? My greatest fear is that the user clicks a button, it says that the message has been sent (as it will have been sent to the thread for sending) but for some reason the thread might fail to send it. Are there any situations where a thread could be aborted prematurely? Please note, that i am not talking about network outages or obvious issues with an email recipient not existing. For simplicites sake please assume that the connect is up, the mail server alive and the recipient valid. Is it possible, for example, for the thread to abort prematurely if the user kills the browser before the thread has completed? This might be a silly question, but i just wanted to make sure i knew the full ramifications of using a thread in this manner. Thanks, in advance, for your help.

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