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  • Django: Save an uploaded file to a FileField

    - by David Wolever
    I feel a little stupid for having to ask this… But I can't seem find it documented anywhere. If I've got a Model with FileField, how can I stuff an uploaded FILE into that FileField? For example, I'd like to do something like this: class MyModel(Model): file = FileField(...) def handle_post(request, ...): mymodel = MyModel.objects.get(...) if request.FILES.get("newfile"): mymodel.file = request.FILES["newfile"] But that doesn't appear to work.

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  • What is the difference between these two statements (asp.net/c#/entity framework)

    - by user318573
    IEnumerable<Department> myQuery = (from D in myContext.Departments orderby D.DeptName select D); var myQuery = (from D in myContext.Departments orderby D.DeptName select D); What is the difference between these two statements above? In my little asp.net/C#/ EF4.0 app I can write them either way, and as far as how I want to use them, they both work, but there has to be a reason why I would choose one over the other?

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  • Add Page Parameter in Zend Framework Doesn't Work

    - by deerawan
    Hello guys, I've been trying to figure this out these days. I got a problem when I want to add 'page' parameter in my URL for my pagination. This is my router -addRoute('budi',new Zend_Controller_Router_Route(':lang/budi',array('controller' = 'budi', 'action' = 'index', 'page' = 1), array('lang'=$s, 'page' = '\d+'))) -addRoute('budi1',new Zend_Controller_Router_Route(':lang/budi/page/:page',array('controller' = 'budi', 'action' = 'index', 'page' = 1), array('lang'=$s, 'page' = '\d+'))) Then I access my URL http://localhost/learningsystem/en/budi but when I hover on my pagination links, the page parameter doesn't appear. The URL is still http://localhost/learningsystem/en/budi but if I enter same URL with index in the end like this one http://localhost/learningsystem/en/budi/index or like this one http://localhost/learningsystem/en/budi/page/1 the page parameter appears perfectly when I click the page 2 link http://localhost/learningsystem/en/budi/index/page/2 Actually, I don't want include 'index' or 'page' at first in my URL. Anyway, I use default pagination.phtml template from Zend. Anyone please help me to solve this problem? Thank you very much

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  • JSON | Django passing python list

    - by MMRUser
    Hi, I'm trying to send a Python list in to client side (encoded as JSON), this is the code snippet which I have written: array_to_js = [vld_id, vld_error, False] array_to_js[2] = True jsonValidateReturn = simplejson.dumps(array_to_js) return HttpResponse(jsonValidateReturn, mimetype='application/json') So my question is how to access it form client side, can I access it like this: jsonValidateReturn[0] or how I assign a name to the returned JSON array in order to access it?

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  • Django call function when an object gets added

    - by dotty
    Hay, i have a simple model class Manufacturer(models.Model): name = models.CharField() car_count = models.IntegerField() class Car(models.Model): maker = ForeignKey(Manufacturer) I want to update the car_count field when a car is added to a manufacturer, I'm aware i could just count the Manufacturer.car_set() to get the value, but i want the value to be stored within that car_count field. How would i do this? EDIT Would something like this work? def save(self): if self.id: car_count = self.car_set.count() self.save()

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  • Django - count date between

    - by DJPy
    I have many record in my database wich contains datetime field (e.g. 2010-05-23 17:45:57). I want to count all records between e.g. 15:00 and 15:59 (it all can by from other day, month or year). How can I do this?

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  • How to handle Foreign Keys with Entity Framework

    - by Jack Marchetti
    I have two entities. Groups. Pools. A Group can create many pools. So I setup my Pool table to have a GroupID foreign key. My code: using (entity _db = new entity()) { Pool p = new Pool(); p.Name = "test"; p.Group.ID = "5"; _db.AddToPool(p); } This doesn't work. I get a null reference exception on p.Group. How do I go about creating a new "Pool" and associating a GroupID?

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  • Entity Framework with SQL Server 2000 (APPLY Operator) issue

    - by How Lun
    Hello, I have a simple Linq query below: var seq = (from n in GetObjects() select n.SomeKey) .Distinct() .Count(); This query works find with SQL Server 2005 and above. But, this start to give headache when I hooked the EF to SQL Server 2000. Because EF is using APPLY operator which only SQL Server 2005 and above can be supported. I do not know why the hell EF is using APPLy operator instead of sub queries. My current work around is: var seq = (from n in GetObjects() select n.SomeKey) .Distinct() .ToList() .Count(); But, I can forsee more problems to come. The above query is just a simple one. Did anyone come across such issue? And how you guys work around it? Or is there a way to force EF not to use APPLY operator? Any help will be very much appreciated. How Lun.

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  • Django query - join on the same table

    - by dana
    i have a mini blog app, and a 'timeline' . there i want to be displayed all the posts from all the friends of a user, plus the posts of that user himself. For that, i have to make some kind of a 'join' between the results of two queries (queries on the same table) , so that the final result will be the combination of the user - posesor of the account, and all his friends. My query looks like this: blog = New.objects.filter(created_by = following,created_by = request.user) By that ',' i wanted to make a 'join' -i found something like this on a doc- but this method is not correct- i'm getting an error. How else could be done this 'join' ? Thanks!

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  • Deleting files associated with model - django

    - by alexBrand
    I have the following code in one of my models class PostImage(models.Model): post = models.ForeignKey(Post, related_name="images") # @@@@ figure out a way to have image folders per user... image = models.ImageField(upload_to='images') image_infowindow = models.ImageField(upload_to='images') image_thumb = models.ImageField(upload_to='images') image_web = models.ImageField(upload_to='images') description = models.CharField(max_length=100) order = models.IntegerField(null=True) IMAGE_SIZES = { 'image_infowindow':(70,70), 'image_thumb':(100,100), 'image_web':(640,480), } def delete(self, *args, **kwargs): # delete files.. self.image.delete(save=False) self.image_thumb.delete(save=False) self.image_web.delete(save=False) self.image_infowindow.delete(save=False) super(PostImage, self).delete(*args, **kwargs) I am trying to delete the files when the delete() method is called on PostImage. However, the files are not being removed. As you can see, I am overriding the delete() method, and deleting each ImageField. For some reason however, the files are not being removed.

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  • Zend Framework 1.1 Modules setup

    - by jiewmeng
    i used zend_tool to setup a project then to create module blog with index controller etc but i guess the default config setup by zend_tool does not work with modules so i edited it resources.frontController.moduleDirectory = APPLICATION_PATH "/modules" resources.frontController.moduleDirectoryControllerName = "controllers" i guess these are required for modules? also i moved the folders, controllers, models, views into the modules/ folder but i get a blank screen when i try to go to http://servername which shld load Default module's index controller and action. even if i try to go http://servername/nonexistentpage it also shows a blank screen instead of a 404

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  • [Zend Framework] Forms and success output

    - by rasouza
    Well, It's a beginer's question but I really don't know what is the best way. I have a basic CRUD (Create, Retrieve, Update and Delete) in my project and I'd like to output some message if succeded or not in a div inside the same page. So, basically, I have a form which action is setted to the same page and I have a div #statusDiv below this same form which I'd like to output something like Register included with success. What is the best way for doing this? Set a flag in the controller $this->view->flagStatus = 'message' then call it in the view? Just to make it more clear. It's my code: //IndexController.php indexAction() ... //Check if there's submitted data if ($this->getRequest()->isPost()) { ... $registries->insert($data); $this->view->flagStatus = 'message'; $this->_redirect('/'); } Then my view: .... <?php if ($this->flagStatus) { ?> <div id="divStatus" class="success span-5" style="display: none;"> <?php echo $this->flagStatus; ?> </div> <?php } ?> ....

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  • Entity Framework 4 and 0:1, 0:1 relationships

    - by Eric J.
    I'm using the Model First approach with EF 4 and hit a snag with two tables, Participant (singular because pre-existing from another app) and ActiveParticipants. A Participant may or may not be associated with exactly one ActiveParticipant and vice versa. When I create an association, everything seems to go well on the surface, but then I get a runtime error complaining that Participant does not contain the column ActiveParticipant_Id. It does contain a column ActiveParticipantId (no underscore). When I view the diagram as XML, there's a line like this: <Property Name="ActiveParticipant_Id" Type="uniqueidentifier" Nullable="true" /> Why is it adding an underscore? Is there anything special I need to do for 0:1, 0:1 relationships?

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  • Entity Framework: Attached Entities not Saving

    - by blog
    Hello: I can't figure out why calling SaveChanges() on the following code results in no changes to the objects I attached: // delete existing user roles before re-attaching if (accountUser.AccountRoles.Count > 0) { foreach (AccountRole role in accountUser.AccountRoles.ToList()) { accountUser.AccountRoles.Remove(role); } } // get roles to add List<int> roleIDs = new List<int>(); foreach (UserRole r in this.AccountRoles) { roleIDs.Add(r.RoleID); } var roleEntities = from roles in db.AccountRoles where roleIDs.Contains(roles.id) select roles; accountUser.AccountRoles.Attach(roleEntities); db.SaveChanges(); In the debugger, I see that the correct roleEntities are being loaded, and that they are valid objects. However, if I use SQL Profiler I see no UPDATE or INSERT queries coming in, and as a result none of my attached objects are being saved.

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  • django update object

    - by John
    Hi, How do I run an update and select statement on the same queryset rather than having to do 2 querys, ones to select the object and one to update the object? the sql would be something like update my_table set field_1 = 'some value' where pk_field = some_value Thanks

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  • Left Join with Entity Framework

    - by sanfra1983
    hi, someone can tell me how to do this query in EF1: select a.idAnimali, a.titolo, a.commenti, a.ordine, a.idcatanimali, table1.nomefoto FROM tabanimali as a LEFT JOIN (SELECT idanimali, nomefoto tabfotoanimali FROM LIMIT 1) AS Table1 On a.idAnimali = table1.idanimali WHERE a.idcatanimali = idcatanimale Thanks

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  • Pass a variable from postDispatch() to view instance in Zend Framework

    - by takeshin
    I have a controller plugin with postDispatch() hook, and there I have a $variable. How to pass this variable to the view instance? I tried Zend_Layout::getMvcInstance()->getView(), but this returns new view instance (not the application resource). The same with $bootstrap->getResource('view'). I don't want to pass it as a request param. Now, as a workaround I do it using Zend_Registry. But, is it the best way?

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  • Zend Framework headLink() helper and HTML5

    - by Richard Knop
    I have set doctype to HTML 5 like this: $view->doctype('HTML5'); Then I have added a stylesheet like this: $view->headLink()->appendStylesheet($view->baseUrl().'/css/reset.css'); It produces link tag like this: <link href="/css/reset.css" media="screen" rel="stylesheet" type="text/css" > But for HTML 5 this would be correct, no? <link rel="stylesheet" href="/css/reset.css"> One more question. How to produce meta tag like this with headMeta() helper? <meta charset="utf-8">

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