DefaultValueWidget

Can be used if a form field should not be editable, but the current value or the value that will be automatically used should still be visible to the user. __init__ takes two additional parameters: **value** is the actual value to be used when saving the form, while **display** determines what is shown to the user when rendering. If *display* is not specified, *value* itself will be used instead. If *display* is a *ModelChoiceField*, *value* is assumed to be a primary key of the model, and the widget will automatically try to retrieve and use the string representation of the corresponding item.

• newforms
• forms
• widgets
• widget

Sun 11 Jul 2010 Read More

jquery autocomplete widget

newforms widget for autocompleting text fields using jquery autocomplete plugin: http://jquery.bassistance.de/autocomplete/ to be implemented: - store the pk value into an hidden field - handling ChoiceFields and many others massimo dot scamarcia at gmail.com

• ajax
• newforms
• javascript
• forms
• jquery
• widgets

Fri 14 Jun 2019 Read More

Choice Field and Select Widget With Optional Optgroups

Renders an select field with some optgroups. Some options can be outside the optgroup(s). The options and labels should be in a tuple with ((label, choices),) where choices is a tuple ((key, value), (key2, value2)). If a label is null or blank, the options will not belong to an opt group.

• newforms
• widgets
• select
• optgroup
• option

Fri 14 Jun 2019 Read More

Currency Fields with newforms

The newforms package allows you to simply add new field types to your forms. This snippet shows the addition of a new type of field, to make sure the user enters sensible currency values (either with no decimal, or two-decimal places), and a custom widget to make sure that the value is displayed correctly when the user sees the form. The CurrencyInput widget simply tries to display the current value in floating point 2-decimal places format (and gives up if it can't). The CurrencyField makes sure that the input value matches a regular expression, and when it is asked to clean the value it converts it to a float. The regex here limits the amount to 99,999.99 or less. This is within the bounds of accuracy of python's float value. If you want to use truly huge values for the amount, then you'll face problems with the floating point not being able to represent the values you enter, and so the conversion to floating point in the field will fail. In this case it would be better to use python longs, and used a fixed point interpretation.

• newforms
• validation
• currency
• form
• widgets

Sun 11 Jul 2010 Read More