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  • Is it hacky to manually construct JSON and manually handle GET, POST instead of using a proper RESTful API for AJAX functionality?

    - by kliao
    I started building a Django app, but this probably applies to other frameworks as well. In Backbone.js methods that call the server (fetch(), create(), destroy(), etc.), should you be using a proper RESTful API such as one provided by Tastypie or Django-Piston? I've founded it easier and more flexible to just construct the JSON in my Django Views, which are mapped to some URLs that Backbone.js can use. Then again, I'm probably not leveraging Tastypie/Django-Piston functionality to the fullest. I'm not ready to make a full-fledged RESTful API for my app yet. I simply would like to use some of the AJAXy functionality that Backbone.js supports. Pros/Cons of doing this?

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  • Custom rendering a radioselect in django form / accessing single element?

    - by Oli
    I have a form like this: CHOICES = [ ('a', 'a_value'), ('b', 'b_value'), ('c', 'c_value') ] self.fields["choice"] = forms.ChoiceField( widget=RadioSelect(), choices=CHOICES, ) How can I select a single element of this form field in my template? I want to be able to do something like: <tr><td>{{form.choice.a}}</td><td>some custom extra field</td></tr> Or is there another way to change how the RadioSelect is rendered?

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  • Django: way to test what class a generic relation content_object is?

    - by bitbutter
    In my project I have a class, NewsItem. Instances of NewsItem act like a wrapper. They can be associated with either an ArtWork instance, or an Announcement instance. Here's how the NewsItem model looks: class NewsItem(models.Model): content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = generic.GenericForeignKey('content_type', 'object_id') date = models.DateTimeField(default=datetime.datetime.now,) class Meta: ordering = ('-date',) def __unicode__(self): return (self.title()) In a template I'm dealing with a NewsItem instance, and would like to output a certain bunch of html it it's 'wrapping' an Artwork instance, and a different bunch of html if it's wrapping an Announcement instance. Could someone explain how I can write a conditional to test for this? My first naive try looked like this: {% if news_item.content_object.type=='Artwork' %}do this{% else %}do that{% endif %}

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  • Translate model fields' attributes from a Database with Django?

    - by Luiz C.
    I'm trying to create a Model that has fields that have the following attributes translatable: verbose_name and choices. I can easily do this by tagging the strings and using the i18l middleware. The problem is that I don't want to define the translation in po/mo files. Is there a way to pull this data from a database table? If so, any examples? There are some options out there that offer model content translation. That is not my case. I need to translate the verbose_name, choices and error_messages from database.

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  • How do I create a Django ModelForm, so that it's fields are sometimes required, sometimes not?

    - by Graf
    Ok, here is the question. Imagine I have a ModelForm which have only two fields. like this one: class ColorForm(forms.Form): color_by_name = forms.CharField() color = forms.IntegerField(widget = forms.Select(choices=COLOR_CHOICES)) So a user can either input a color name, a choose it from a list. Color is required, but that doesn't mean, that user should enter it manually. There do I put validation, so that my code checks if user selected color in dropdownlist and if not then he should write it manually?

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  • Why is it that I cannot insert this into Django correctly?

    - by alex
    new_thing = MyTable(last_updated=datetime.datetime.now()) new_thing.save() >>>>select * from MyTable\G; last_updated: 2010-04-01 05:26:21 However, in my Python console...this is what it says... >>> print datetime.datetime.now() 2010-04-01 10:26:21.643041 So obviously it's off by 5 hours. By the way, the database uses "SYSTEM" as its time, so they should match perfectly. mysql> SELECT current_time; +--------------+ | current_time | +--------------+ | 10:30:16 | +--------------+ >>> print datetime.datetime.now() 2010-04-01 10:30:17.793040

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  • Django: Gracefully restart nginx + fastcgi sites to reflect code changes?

    - by Bartek
    Hi, Common situation: I have a client on my server who may update some of the code in his python project. He can ssh into his shell and pull from his repository and all is fine -- but the code is stored in memory (as far as I know) so I need to actually kill the fastcgi process and restart it to have the code change. I know I can gracefully restart fcgi but I don't want to have to manually do this. I want my client to update the code, and within 5 minutes or whatever, to have the new code running under the fcgi process. Thanks

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  • Filter rows from Cursor so they don't show up in ListView

    - by Richard
    I have a Cursor that returns rows I use with a SimpleCursorAdapter to populate a ListView. I would like to filter some of the rows so they don't get displayed in my ListView. I use the data from the rows elsewhere in my Activity so I don't want to change my SQL to filter them with a WHERE clause. What is the best way to keep a row from being displaying in my ListView? Ideally I would check a column in my row and then only add rows to the ListView that satisfy a condition.

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  • Filter the datagridview column based on the current row of another column in C#

    - by user286546
    I have a datagridview that is populating columns from different table. I want to filter the column based on another column of the current row. I tried to use the cell enter event of the datagridview and then filtered the column by filtering the binding source on the column of the current row. private void lINKDataGridView_CellEnter(object sender, DataGridViewCellEventArgs e) { this.pROBLEMBindingSource.Filter = "item_id = " + this.lINKDataGridView.Rows[e.RowIndex].Cells[dataGridViewTextBoxColumn4.Index].Value + ""; } This is how I am filtering the "problem " binding source on the cell enter event of the datagridview . It is working fine but I am getting an error- being: System.ArgumentException: DataGridViewComboBoxCell value is not valid. Any suggestion

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  • How do set default values in django for an HttpRequest.GET?

    - by Mike
    I have a webpage that displays data based on a default date. The user can then change their view of the data by slecting a date with a date picker and clicking a submit button. I already have a variable set so that if no date is chosen, a default date is used.... so what's the problem? The problem comes if the user trys to type in the url page without a parameter... like so: http://mywebpage/viewdata (example A) instead of http://mywebpage/viewdata?date= (example B) I tried using: if request.method == 'GET': but apparently, even example A still returns true. I'm sure I'm doing some obvious beginner's mistake but I'll ask anyway... Is there a simpler way to handle example A other than passing the url to a string and checking the string for "?date="?

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  • Creating Filter for my Associated View

    - by Hooman
    Senario: Open an account in CRM 2011 beta and click on activities on the left navigation pane, you will now see activities of the selected account and now have two filter drop down lists on the top which allow you to view activities of the account or sub accounts of this account. Is this filter drop downs something customizable or is it a feature only available for system entities (like acitivity)? Is this functionality provided because Activity entity have N:1 relationship with Type of Behavior = System? can we provide the same or similar functionality by using Type of behavior = Parental!?!? Thx

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  • Twitter RSS feed without retweets

    - by srunni
    Hi, I'm interested in following a Twitter account in my RSS reader. However, I don't want to see any of the retweets posted by the account. Is there some way to filter this out on the server (i.e., Twitter) side, or would I have to do it in my RSS reader? The account is still using the old ("RT @account:") method of retweeting. Thanks!

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  • What is the best / proper idiom in django for modifying a field during a .save() where you need to o

    - by MDBGuy
    Hi, say I've got: class LogModel(models.Model): message = models.CharField(max_length=512) class Assignment(models.Model): someperson = models.ForeignKey(SomeOtherModel) def save(self, *args, **kwargs): super(Assignment, self).save() old_person = #????? LogModel(message="%s is no longer assigned to %s"%(old_person, self).save() LogModel(message="%s is now assigned to %s"%(self.someperson, self).save() My goal is to save to LogModel some messages about who Assignment was assigned to. Notice that I need to know the old, presave value of this field. I have seen code that suggests, before super().save(), retrieve the instance from the database via primary key and grab the old value from there. This could work, but is a bit messy. In addition, I plan to eventually split this code out of the .save() method via signals - namely pre_save() and post_save(). Trying to use the above logic (Retrieve from the db in pre_save, make the log entry in post_save) seemingly fails here, as pre_save and post_save are two seperate methods. Perhaps in pre_save I can retrieve the old value and stick it on the model as an attribute? I was wondering if there was a common idiom for this. Thanks.

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  • Java Security filter together with thickbox pop-ups

    - by user197127
    Hi, I have a java application that uses a security filter to protect certain resources. If there is no user logged on, it will keep in session the request path and redirect to a logon page. After a successful logon, user is redirected to the original requested page. I have now added some thickbox (ajax bases pop-up) popups to the application. Unfortunately, when I get now a popup that is "secure" the filter redirects to a logon page (which is not a popup) and makes the whole application messy. Anyone with ideas on how to solve this? Thanks

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