You can now add and delete features, but sometimes you only need to change an attribute value. For example, an open case status to a closed case status. In this section, you will learn how to modify attributes.
Attributes are modified by calling changeAttributeValues(). The following code changes a single feature:
scf.dataProvider().changeAttributeValues({114:{0:123,1:345,2:"ADA",3:"NEW"} })
The previous code calls changeAttributeValues() and passes a dictionary with the key being the feature id and the value being a dictionary of attributes—{id:{0:value, 1:value, n:value}}. The keys for the attributes dictionary are the field indexes. There are four fields in the features so the dictionary of attributes ...