python - Check if a form is valid from within a form field [Django] -


I have sub-squared the text-field form field in Django to create my own custom widget for a field I was wondering if it is possible to check that all other fields of the form are valid (I want to separate my server side behavior based on the recognition of other areas)

See the comment

Something like this: 

  class CustomField (TextInput): def __init __ (self, * args, ** kwargs): ... soup (CustomField, itself) .__ init __ (* arg, ** kwargs) Input_type = 'hidden' def value_from_datadict (auto, data, file, name): aws_file_key = data.get (name, none) _media_bucket = boto.connect_s3 (Settings.AWS_ACCESS_KEY_ID, settings.AWS_SECRET_ACCESS_KEY) .lookup (settings.AWS_MEDIA_STORAGE_BUCKET_NAME) Try: except key: _media_bucket.get_key (aws_file_key): Failed to get print 'key.' Key = none if key and aws_file_key: fh = tempfile.TemporaryFile () key.get_contents_to_file (fh) fh.seek (0) files = plainloaded file (key.name, fh.read ()) ### If the form valid delete key Otherwise, keep it if code_to_check_if_valid: _media_bucket.delete_key (key) fh.close () returns file ...... etc    
 
 
 If you want to validate a certain field based on the values ​​of other fields, then you must put it at the form level and the  clean  method of the field To overrun You have to burn - they are very good. CustomForm (custom.form): custom_field = CustomField () DEF clean (self): cleaned_data = super (CustomForm, auto) .clean () custom_field = cleaned_data.get ("custom_field" ) ...   
, you will see that if all other areas are independently verified, at this step,   clear  method It can be considered valid:   
 
 These methods run one field at a time in the order given above. That is, as each field (they are declared in form definition),  Field.clean ()  method (or its override) is running, then  clean_ . Finally, once those two methods are run for each field, the  Form.clean ()  method or its override is executed.   
 The last clean method is by default if you have any errors, so you do not have any errors, to ensure that you get through  cleaned_data  It will have to iterate  
 
 The clean () method or subclass for the form class is always running. If that method raises a validation error, then the cleaned_data will be an empty dictionary.  
 The last paragraph means that if you have the form. If you are overriding the scales, then you should iterate through self.cleaned_data.items (), possibly even on the Rounds Dictionary Attribution On Form. In this way, you may already know which areas have exceeded their individual verification requirements.

Comments

Post a Comment

Popular posts from this blog

Python SQLAlchemy：AttributeError: Neither 'Column' object nor 'Comparator' object has an attribute 'schema' -

I tried to create a new database in my project, but when I run the script, I get this error, I have another project, this type of definition worked before, but now it gets a single error. I am using Python 2.7.8 and the version of SQLAlchemy module is 0.9.8. By the way, using a project flask- SQLAlchemy, it works well, I'm confused. Traceback information is as follows: Traceback (most recent call final): File "D: / Projects / IOM / db_create.py", line 4, & lt; Module & gt; From the models the base file "D: \ Projects \ OO-IM \ models.py", in line 15, in the & lt; Module & gt; Column ( 'followed_id', int (), ForeignKey ( 'user.id')) file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ schema.py", line 369, __new__ schema = metadata. Schema file "C: \ Python27 \ lib \ site-packages \ SQLAlchemy \ SQL \ elements.py", line 662, AttributeError in __getattr__ key): Neither 'column' object nor ...
Read more

java - How not to audit a join table and related entities using Hibernate Envers? -

I use Eners to be hibernate to audit my institutions. I have an audit entity, Foo , which includes a list & lt; Bars & gt; However, I do not want to audit the bar institutions, in the form of properties, I have written that: @inti @edicated public class Foo {@JoinTable (name = "T_FOO_BAR", joinColumns = @JoinColumn (name = "FOO_ID"), inverseJoinColumns = @JoinColumn (Name = "BAR_ID")) @ManyToMany (Cascade = Persist) @ Indited (targetAuditMode = RelationTargetAuditMode.NOT_AUDITED ) Public listing & lt; Bars & gt; GetBars () {Return bars; }} Now, I want to retrieve an amendment of foo : AuditReader reader = AuditReaderFactory.get (GetEntityManager ()); FU modification = (FU) reader.CreativeTeA () .entensEtrevision (Foo Class, 42) .getSingleResult (); Unfortunately, when I want to retrieve all the data (i.e. when it loads lazy times ), error me ORA-00942: table or view is not present , because Tried to query this: Sel...
Read more

mongodb - CakePHP paginator ignoring order, but only for certain values -

While pagging my user model in kppp, I can sort with some values, but not others. For example, I can order results from created or email , for example, but username or reputation seems to come back order by arbitrary command for example with a list of users: $ this-> paginate = array ('condition' => array ( 'User.is_active' = & gt; true), 'border' => 24, 'order' => array ('User.created' => DESC)); Works as expected, but $ this - & gt; Paged = array ('conditions' = & gt; array (' user.isIactive '= & gt; true),' border '= & gt; 24,' command '= & gt; array (' user repeats' = ' & Gt; DESC ')); No, no. I first thought that this could be a database issue, but when I search the database directly, sorted as expected. Note: I am using Mangodebi with the Mongo DB plugin of Ichikawa for the KPPHP; Pagnetizing users are used to work properl...
Read more