Mein Code sieht wie folgt aus:
\AtEveryBibitem{%
\ifkeyword{primary}%
{\clearfield{journaltitle}}%
}%
\AtEveryBibitem{%
\ifkeyword{primary}%
{\renewbibmacro*{in:}{{}{\printtext{\bibstring{in}\intitlepunct}}}}%
}%
\AtEveryBibitem{%
\ifkeyword{primary}%
{\clearfield{journaltitle}}%
}%
\AtEveryBibitem{%
\ifkeyword{primary}%
{\renewbibmacro*{in:}{{}{\printtext{\bibstring{in}\intitlepunct}}}}%
}%
\documentclass{article}
\usepackage[backend=biber,style=footnote-dw]{biblatex}
\AtEveryBibitem{%
\ifkeyword{primary}%
{\clearfield{journaltitle}}%
}%
\AtEveryBibitem{%
\ifkeyword{primary}%
{\renewbibmacro*{in:}{{}{\printtext{\bibstring{in}\intitlepunct}}}}%
}%
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@article{test,
keywords = {primary},
author = {Max Muster},
date = {2006-09-20},
title = {Test},
journal = {Die Zeitung}
}
\end{filecontents*}
\addbibresource{\jobname.bib}
\begin{document}
\nocite{*}
\printbibliography
\end{document}
\ifkeyword{<keyword>}
{<truecode>}
{<falsecode>}\renewbibmacro*{in:}{%
\ifkeyword{primary}
{}
{\printtext{\bibstring{in}\intitlepunct}}}\documentclass{article}
\usepackage[backend=biber,style=footnote-dw]{biblatex}
\AtEveryBibitem{%
\ifkeyword{primary}
{\clearfield{journaltitle}}
{}%
}%
\renewbibmacro*{in:}{%
\ifkeyword{primary}
{}
{\printtext{\bibstring{in}\intitlepunct}}}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@article{test,
keywords = {primary},
author = {Max Muster},
date = {2006-09-20},
title = {Test},
journal = {Die Zeitung}
}
\end{filecontents*}
\addbibresource{\jobname.bib}
\begin{document}
\nocite{*}
\printbibliography
\end{document}\AtEveryBibitem{%
\ifkeyword{primary}
{\clearfield{journaltitle}}
{}%
}%
\AtEveryBibitem{%
\renewbibmacro*{in:}{%
\ifkeyword{primary}
{}
{\printtext{\bibstring{in}\intitlepunct}}}
{}%
}%