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Web2py CRUD.create () field representation in forms

I have this field, for example

Field('yourref', type='string',
          label=T('Your reference')),

which displays as INPUT in HTML

<input id='table_yourref' name='yourref' value=''/>

I want to show it like this

<input id='table_yourref' name='yourref' value=''/>
<a onclick='add()'>Add</a>
<a onclick='remove()'>Remove</a>

add()

and remove()

are jQuery functions to add or remove a field

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1 answer


The best way is probably to create a custom widget :

def mywidget(field, value):
    return CAT(INPUT(_name=field.name,
                     _id='%s_%s' % (field._tablename, field.name),
                     _class=field.type,
                     _value=value, requires=field.requires),
               A('Add', _onclick='add()'),
               A('Remove', _onclick='remove()'))
...

Field('yourref', type='string', label=T('Your reference'),
      widget=mywidget)

You can also use the server-side DOM to insert links into the form after it's created:



form = crud.create(db.mytable)
form.element('#mytable_myfield__row .w2p_fw').append(A('Add', _onclick='add()'))
form.element('#mytable_myfield__row .w2p_fw').append(A('Remove', _onclick='remove()'))

The advantage of a custom widget is that it will apply to all forms based on db.mytable, whereas the DOM method has to be applied separately to each form.

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