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While there is a reasonable amount of documentation regarding CForm (form builder) and file uploads seperately, there really is not any coverage of both in combination.

Yii i18n does not cover decimal format. Some languages like Spanish (I live in Argentina) uses comma ',' instead of dot '.' as decimal separator.

In application development we often have to choose how to mange recurrent values.

Let's say our table 'mug' has a column named 'color' of the type ENUM('red','green','blue'). We want to replace the textfield for the attribute color in the create and update forms of a 'mug' with a drop down list, which has the enum values as options. The main code was contributed by zaccaria in the forum (see this post).

As you know, the CDetailView widget displays details of a single model. If no formatting is specified, boolean values that are stored in the database as 0 and 1, are represented in the detail view as 0 and 1. If formatted as boolean, they are represented as 'No' and 'Yes'. We want to add i18n support, so that Yes and No appear in the current language.

If you like the things to be short and clear, then you can skip right to a short summary of instructions at the end of this article.

Here is my experiment inspired by my own question and others from the forum.

It is good when someone writes extensions for us but trust, sometimes we forget about other approaches that, if we know the library, we shouldn't forget.

Occasionally one wishes to set systemwide parameters for an application, such as a contact address for email, an application name, or setting an option that guides major behavior. Yii provides for setting of static parameters in the configuration file, and this article talks about how to do it conveniently.

In a nutshell, the task at hand is to mark (or render) a model attribute in the typical "_form.php" view file with the 'required' red asterisk while this attribute is not marked as required in the model's rule() method. If you're interested only in the solution, jump ahead to the 'solution' section below.