Have biblatex-chicago refer to first mention in subsequent notes

Question

In the notes version of biblatex-chicago, the first citation gives a full citation in footnotes while any subsequent citations will only give the last name and short title. Is there any way to add the footnote number where the full citation is used?

So in the example:

\documentclass{memoir}
\usepackage[notes]{biblatex-chicago}
\usepackage{filecontents}

\begin{filecontents}{biblio.bib}
    @book{book1,
        title = {First Book title},
        author = {Author, The},
        location = {Place},
        publisher = {Publisher},
        date = {2020},
    }
    @book{book2,
        title = {Second Book title},
        author = {Author, Another},
        location = {Place},
        publisher = {Publisher},
        date = {2020},
    }
\end{filecontents}
\bibliography{biblio}
\begin{document}
Here is\footcite{book1} some\footcite{book2} text as filler.\footcite{book1}

\end{document}

The output of note 3 should be "Author, First book title (ref. 1)" instead of just "Author, First book title"

To get this to work properly, I would also require citations to be reset at the start of each chapter.

Answer 1

The standard style verbose-note offers an option like this, so we can try and transplant its code into biblatex-chicago.

\documentclass{memoir}
\usepackage[notes]{biblatex-chicago}

% Taken from verbose-note.cbx
\newtoggle{cbx:pageref}
\DeclareBibliographyOption[boolean]{pageref}[true]{%
  \settoggle{cbx:pageref}{#1}%
  \iftoggle{cbx:pageref}
    {\ExecuteBibliographyOptions{pagetracker}}
    {}}

\newbibmacro*{seenote}{%
  \printtext[parens]{%
    \bibstring{seenote}\addnbspace
    \ref{cbx@\csuse{cbx@f@\thefield{entrykey}}}%
    \iftoggle{cbx:pageref}
      {\ifsamepage{\the\value{instcount}}
                  {\csuse{cbx@f@\thefield{entrykey}}}
         {}
         {\addcomma\space\bibstring{page}\addnbspace
          \pageref{cbx@\csuse{cbx@f@\thefield{entrykey}}}}}
      {}}%
}

% Simplified version of chicago-notes.cbx's definition
% cf. also the definition in verbose-note.cbx
\renewbibmacro*{footcite:save}{%
  \iffootnote
    {\csxdef{cbx@f@\thefield{entrykey}}{\the\value{instcount}}%
     \label{cbx@\the\value{instcount}}}%
    {}}%

\makeatletter
% Just add a call to \usebibmacro{seenote} to the definition
\renewbibmacro*{cite:short}[1]{%
  \global\let\cms@pnsaved\undefined%
  \ifcsundef{cite:short:#1}%
    {\csuse{cite:short:book}}%
    {\csuse{cite:short:#1}}%
   \setunit{\addspace}%
   \usebibmacro{seenote}}%
\makeatother


\begin{filecontents}{\jobname.bib}
@book{book1,
  title     = {First Book title},
  author    = {Author, The},
  location  = {Place},
  publisher = {Publisher},
  date      = {2020},
}
@book{book2,
  title     = {Second Book title},
  author    = {Author, Another},
  location  = {Place},
  publisher = {Publisher},
  date      = {2020},
}
\end{filecontents}
\addbibresource{\jobname.bib}

\begin{document}
Here is\footcite{book1} some\footcite{book2} text as filler.\footcite{book1}
\end{document}

edit Updated for version 2020/04/20 of biblatex-chicago. See the edit history for code working with older versions.