A field on a view has a value, but how that value is presented and interacted with is the matter of widgets. This piece is about field widgets in Odoo views.
What a field widget is
A field widget is the way a field is presented, and interacted with, on a view. A field holds a value, but there can be more than one way to present that value to the user and let them interact with it, and the widget is which way is used. The widget determines how the field genuinely looks and behaves on the view, how its value is shown, how the user genuinely works with it.
Why widgets matter
Widgets matter because how a field is presented affects how genuinely usable it is. A field presented with a widget that genuinely suits it is a field a user can see and work with easily and well. A field presented with a widget that does not suit it is a field that is harder to use than it should be. The widget is the difference between a field that is just shown and a field that is shown in the way that genuinely best serves the user working with it. So choosing the right widget for a field is part of building a view that genuinely helps the people who use it.
Widgets and the kind of field
A field has a type, the kind of information it holds, and the suitable widgets relate to that. Different kinds of field, and different uses of a field, are genuinely best presented in different ways, and there are widgets suited to those. The point for a developer is that, when a field is on a view, there may be a choice of how it is presented, and the developer should choose the widget that genuinely suits that field, in its kind and its use, so the field is presented in the way that best serves the user. The right widget for a field is the one that genuinely fits how that field should be seen and worked with.
Choosing widgets thoughtfully
The practical guidance for a developer is to consider, for the fields on a view, whether a particular widget genuinely suits a field better than the default presentation, and to use a widget where it genuinely improves how the field serves the user. Choosing widgets thoughtfully, where they genuinely help, is part of building a good view. It should be done for genuine benefit, the field genuinely better presented, not as fiddling for its own sake. A view whose fields are presented with the widgets that genuinely suit them is a view that genuinely helps its users.
The takeaway
Field widgets in Odoo views are the way a field is presented and interacted with on a view. Widgets matter because how a field is presented affects how genuinely usable it is, the right widget making a field easy to see and work with. Different kinds and uses of fields are best presented in different ways, and there are widgets suited to those. A developer should choose, for the fields on a view, the widget that genuinely suits each, where a widget genuinely improves how the field serves the user. For how we approach Odoo, see our ERP practice.