use data ttribute for autocompletion

this moves the whole field creation to a separate function and adds the
full qualified column name as a data attribute. This is needed because
we can not rely on

use data ttribute for autocompletion

this moves the whole field creation to a separate function and adds the
full qualified column name as a data attribute. This is needed because
we can not rely on the field's name to figure out the column name as it
will be unrelated in bureaucracy use

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