[web2py] Re: Need more than one value to unpack

[Dave S]

On Monday, January 6, 2014 12:32:01 PM UTC-8, Akash Agrawall wrote:
>
> I am getting this error:
> "Need more than one value to unpack"
>
>
Can you tell us which line the error message is referencing?  Is there a 
traceback in the ticket?

/dps


 

> *db.py:*
> class IS_CATEGORYIT(object):
>     def __init__(self, error_message="Zip code not allowed"):
>         self.error_message = error
>     def __call__(self, value):
>         error = None
>         print len(value)
>         if len(value)==0:
>             error = self.error_message
>         return (value, error)
> db.define_table('book',
>                 db.Field('Name','string'),
>                 db.Field('Category','string',requires=IS_CATEGORYIT),
>                 db.Field('Quantity','integer'),
>                 db.Field('ISBN','string',unique=True),
>                 db.Field('Age_group','list:string', 
> requires=IS_IN_SET(['1-4','5-8','9-12','13-17'])),
>                 
> db.Field('entry_date','date',default=datetime.date.today(),requires=IS_DATE(format=('%d-%m-%Y'))),
>                 db.Field('Description','text'),
>                 db.Field('Image','upload',uploadfield='picture_file'),
>                 db.Field('picture_file','blob'),
>                 db.Field('Available','integer'),
>                 db.Field('Author','string'),
>                 db.Field('Link','string',requires=IS_EMPTY_OR(IS_URL())))
>
> db.book.Description.widget= lambda field,value: 
> SQLFORM.widgets.text.widget(field,value,_style='width:400px',_rows=5)
> db.book.Category.requires=IS_IN_SET(['ficton','non-fiction','action and 
> adventure','travel','biography','story'],multiple=True,zero=None),IS_NOT_EMPTY(error_message="cannot
>  
> be empty")
> db.book.Category.widget= lambda field,value: 
> SQLFORM.widgets.checkboxes.widget(field,value)
>
> *controller: default.py*
> def add_book():
>         form1=SQLFORM(db.book)
>         form1.add_button('Cancel', URL('add_book'))
>         if form1.accepts(request.vars,session):
>                 response.flash="Book Inserted"
>         elif form1.errors:
>                 response.flash="Errors in form"
>         return dict(form1=form1)
>
> *view:add_book.html*
> {{=form1.custom.begin}}
> <table>
> <tr><td  style="width:51%">Name&nbsp;<span 
> style="color:red;">*</span>:</td><td> {{=form1.custom.widget.Name
> }}</td></tr>
> <tr><td> Quantity&nbsp;<span style="color:red;">*</span>:</td><td> 
> {{=form1.custom.widget.Quantity}}</td></tr>
> <tr><td  style="width:51%">Available&nbsp;<span 
> style="color:red;">*</span>:</td><td> 
> {{=form1.custom.widget.Available}}</td></tr>
> <tr><td  style="width:51%">ISBN&nbsp;<span style="color:red;">*</span>: 
> </td><td>{{=form1.custom.widget.ISBN}}</td></tr>
> <tr><td  style="width:51%">Entry Date&nbsp;<span 
> style="color:red;">*</span>: 
> </td><td>{{=form1.custom.widget.entry_date}}</td></tr>
> </table>
> &nbsp;
> <span style="color:#666666;" >Category</span><span 
> style="color:red;">*</span>: &nbsp;&nbsp;
> <br/>
> <span style="position:relative;left:43%;color:rgb(102, 102, 102);"><label 
> class="checkbox inline">{{=form1.custom.widget.Category[0]}}</label></span>
> <span style="position:relative;left:50%;color:rgb(102, 102, 102);"><label 
> class="checkbox 
> inline">{{=form1.custom.widget.Category[1]}}</label></span><br/>
> <span style="position:relative;left:43%;color:rgb(102, 102, 102);"><label 
> class="checkbox inline">{{=form1.custom.widget.Category[3]}}</label></span>
> <span style="position:relative;left:50.5%;color:rgb(102, 102, 
> 102);"><label class="checkbox 
> inline">{{=form1.custom.widget.Category[4]}}</label></span><br/>
> <span style="position:relative;left:43%;color:rgb(102, 102, 102);"><label 
> class="checkbox inline">{{=form1.custom.widget.Category[5]}}</label></span>
> <span style="position:relative;left:51%;color:rgb(102, 102, 102);"><label 
> class="checkbox inline">{{=form1.custom.widget.Category[2]}}</label></span>
> </tr>
>  </tr>
> <table>
> <tr><td style="width:45%">Age Group&nbsp;<span 
> style="color:red;">*</span>:</td> 
> <td>{{=form1.custom.widget.Age_group}}</td></tr>
> <tr><td style="width:45%">Author:</td><td> 
> {{=form1.custom.widget.Author}}</td></tr>
> <tr><td style="width:45%">Amazon Link:</td> 
> <td>{{=form1.custom.widget.Link}}</td></tr>
> <tr><td style="width:45%">Description:</td><td> 
> {{=form1.custom.widget.Description}}</td></tr>
> <tr><td style="width:45%">Image:</td><td> 
> {{=form1.custom.widget.Image}}</td></tr>
> <tr><td 
> style="width:45%"></td><td>{{=form1.custom.submit}}&nbsp;&nbsp;&nbsp;{{=form1[0][11][1][1]}}</td></tr>
> </table>
> {{=form1.custom.end}}
>
> Please hava look at this..... need reply to this..... ASAP..... thanx in 
> advance
>
>

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