Value Mappers

A value mapper is a little Fluidity helper class that sits between the editor UI and the database and lets you tweak the stored value of a field. By default Fluidity will save a datatypes value is it would be stored in Umbraco. Value mappers let you change this.

Defining a value mapper

To define a mapper you create a class that inherits from the base class FluidityValueMapper and implements the methods EditorToModel and ModelToEditor.

// Example
public class MyValueMapper : FluidityValueMapper
{
    public override object EditorToModel(object input)
    {
        // Tweak the input and return mapped object
        ...
    }

    public override object ModelToEditor(object input)
    {
        // Tweak the input and return mapped object
        ...
    }    
}

Setting a mapper on a field

A mapper is assigned to a field as part of the editor configuration. See Editor API Documentation for more info.