Citation as author-title instead of author-year; but only for references from a certain file

Question

Based on Biblatex: Two bibliographies with different styles and sortings, I have the following MWE.

\documentclass{article}
%%% To use with the \DeclareFieldFormat and \defbibenvironment below:
% \usepackage[backend=biber, style=alphabetic, labelnumber, defernumbers=true]{biblatex}
\usepackage[backend=biber, style=authoryear, sorting=none, natbib=true, backref]{biblatex}
% Append keywords to identify different bibliography entries.
% appendstrict only appends if the field is nonempty,
% we use that to add a comma to avoid mushing together two keywords
\DeclareSourcemap{
  \maps[datatype=bibtex, overwrite]{
    \map{
      \perdatasource{Referenzen_academic.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=primary, append]
    }
    \map{
      \perdatasource{Referenzen_popular.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=secondary, append]
    }
  }
}
\begin{filecontents}{Referenzen_academic.bib}
@BOOK{BookA03,
  author    = {Author Aaa},
  title     = {Some Title},
  publisher = {Some Publisher},
  year      = 2003,
%   keywords  = {hello},
}
@BOOK{BookB02,
  author    = {Author Bbb},
  title     = {Some Title},
  publisher = {Some Publisher},
  year      = 2002,
}
\end{filecontents}
\begin{filecontents}{Referenzen_popular.bib}
@MISC{LinkC04,
  author    = {Author Ccc},

  title     = {Some Title},
  year      = 2004,
  url       = {www.test1.com/bild.jpg},
%   keywords  = {bye},
}
@MISC{LinkD01,
  author  = {Author Ddd},
  title   = {Some Title},
  year    = 2001,
  url     = {www.test2.com/bild.jpg},
}
\end{filecontents}
\addbibresource{Referenzen_academic.bib}
\addbibresource{Referenzen_popular.bib}
\usepackage{hyperref}
\begin{document}
The first two citations \cite{LinkD01} and \cite{BookB02}. 
The others are \cite{LinkC04} and \cite{BookA03}.
\printbibliography[title=Bibliography (academic), keyword=primary]
\newrefcontext[sorting=none]
% \printbibliography[env=bibliographyNUM, title=References, keyword=secondary, resetnumbers]
\printbibliography[title=Bibliography (conventional), keyword=secondary]
\end{document}

I have two different bibliography files. I would like that the bibliographies themselves are the same (as shown). But, I would like that the citing for each are different. Namely, I would like that the citings in the main body of text for the second article contain author and title instead of author and year. How can I do this?

score 1 · Answer 1 · answered Apr 29 '23 at 15:28

I managed to answer my question with the following code

\documentclass{article}
\usepackage[backend=biber, style=authoryear, sorting=none, natbib=true, backref]{biblatex}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%     Automatically adding keywords, depending on the file origin
%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Append keywords to identify different bibliography entries.
% appendstrict only appends if the field is nonempty,
% we use that to add a comma to avoid mushing together two keywords
\DeclareSourcemap{
  \maps[datatype=bibtex, overwrite]{
    \map{
      \perdatasource{Referenzen_academic.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=primary, append]
    }
    \map{
      \perdatasource{Referenzen_popular.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=secondary, append]
    }
  }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%     Create or Customize cite commands
%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Here we redefine cite and parencite:
\DeclareCiteCommand{\cite}
  {\usebibmacro{prenote}}
  {\ifkeyword{secondary}{%
        \bibhyperref{\printfield{labeltitle}\setunit{\addcomma\addspace}\printnames{labelname}}%
        }{%
        \usebibmacro{cite}%
        }%
  }
  {\multicitedelim}
  {\usebibmacro{postnote}}
\DeclareCiteCommand{\parencite}
  {\bibopenparen\usebibmacro{prenote}}
  {\ifkeyword{secondary}{%
        \bibhyperref{\printfield[citetitle]{labeltitle}\setunit{\addcomma\addspace}\printnames{labelname}}%
        }{%
        \usebibmacro{cite}%
        }%
  }
  {\multicitedelim}
  {\usebibmacro{postnote}\bibcloseparen}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%     Produce and add the bib files
%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{filecontents}{Referenzen_academic.bib}
@BOOK{BookA03,
  author    = {FirstnameXA FamilyXA},
  title     = {Some Title XA},
  publisher = {Some Publisher XA},
  year      = 2003,
  keywords  = {hello},
}
@BOOK{BookB02,
  author    = {FirstnameXB FamilyXB},
  title     = {Some Title XB},
  publisher = {Some Publisher XB},
  year      = 2002,
  keywords  = {wiki}
}
\end{filecontents}
\begin{filecontents}{Referenzen_popular.bib}
@MISC{LinkC04,
  author    = {FirstnameYC FamilyYC},

  title     = {Some Title YC},
  year      = 2004,
  url       = {www.test1.com/bild.jpg},
  keywords  = {bye},
}
@MISC{LinkD01,
  author  = {FirstnameYD FamilyYD},
  title   = {Some Title YD},
  year    = 2001,
  url     = {www.test2.com/bild.jpg},
  keywords  = {wiki}
}
\end{filecontents}
\addbibresource{Referenzen_academic.bib}
\addbibresource{Referenzen_popular.bib}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%     use other packages
%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{hyperref}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
%%%     Document
%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
The first two citations \cite{LinkD01} and \cite{BookB02}. 
The others are \cite{LinkC04} and \cite{BookA03}.
\cite{LinkD01}
\parencite{BookB02}
\parencite{LinkD01}
\printbibliography[title=Bibliography (academic), keyword=primary]
\printbibliography[title=Bibliography (conventional), keyword=secondary]
\end{document}

this includes the following tricks:

we add respective keywords based on the file the reference comes from
we check for keywords to change the citation command
if the respective keywords are not changed, we keep the original command

score 0 · Answer 2 · answered Apr 29 '23 at 07:42

Is it OK for you to use a different citation command (\authtitcite in my MWE) in the second article?

\documentclass{article}
%%% To use with the \DeclareFieldFormat and \defbibenvironment below:
% \usepackage[backend=biber, style=alphabetic, labelnumber, defernumbers=true]{biblatex}
\usepackage[backend=biber, style=authoryear, sorting=none, natbib=true, backref]{biblatex}
% Append keywords to identify different bibliography entries.
% appendstrict only appends if the field is nonempty,
% we use that to add a comma to avoid mushing together two keywords
\DeclareSourcemap{
  \maps[datatype=bibtex, overwrite]{
    \map{
      \perdatasource{Referenzen_academic.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=primary, append]
    }
    \map{
      \perdatasource{Referenzen_popular.bib}
      \step[fieldset=KEYWORDS, fieldvalue={, }, appendstrict]
      \step[fieldset=KEYWORDS, fieldvalue=secondary, append]
    }
  }
}
\begin{filecontents}{Referenzen_academic.bib}
@BOOK{BookA03,
  author    = {Author Aaa},
  title     = {Some Title},
  publisher = {Some Publisher},
  year      = 2003,
%   keywords  = {hello},
}
@BOOK{BookB02,
  author    = {Author Bbb},
  title     = {Some Title},
  publisher = {Some Publisher},
  year      = 2002,
}
\end{filecontents}
\begin{filecontents}{Referenzen_popular.bib}
@MISC{LinkC04,
  author    = {Author Ccc},

  title     = {Some Title},
  year      = 2004,
  url       = {www.test1.com/bild.jpg},
%   keywords  = {bye},
}
@MISC{LinkD01,
  author  = {Author Ddd},
  title   = {Some Title},
  year    = 2001,
  url     = {www.test2.com/bild.jpg},
}
\end{filecontents}
% Adapted from https://tex.stackexchange.com/a/123145/101651
\DeclareCiteCommand{\authtitcite}
 {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \usebibmacro{prenote}}
  {\ifciteindex
     {\indexnames{labelname}%
      \indexfield{indextitle}}
     {}%
   \printnames{labelname}%
   \setunit{\addcomma\addspace}%
   \printfield[citetitle]{labeltitle}}
  {\multicitedelim}
  {\usebibmacro{postnote}}
\addbibresource{Referenzen_academic.bib}
\addbibresource{Referenzen_popular.bib}
\usepackage{hyperref}
\begin{document}
Do you intend this in the first article:
The first two citations \cite{LinkD01} and \cite{BookB02}.
and this in the second article:
The others are \authtitcite{LinkC04} and \authtitcite{BookA03}.
?
\printbibliography[title=Bibliography (academic), keyword=primary]
\newrefcontext[sorting=none]
% \printbibliography[env=bibliographyNUM, title=References, keyword=secondary, resetnumbers]
\printbibliography[title=Bibliography (conventional), keyword=secondary]
\end{document}

I managed to get what I want with https://tex.stackexchange.com/a/684270/49283. Can you explain, what the possible advantages of your code are? I am asking, because I reckon that you are more proficient in Latex than I am. — Make42, Apr 29 '23 at 15:29

Citation as author-title instead of author-year; but only for references from a certain file

2 Answers2