# Help with additional parameter for DeclareCiteCommand

I use a custom cite command cite which puts the citation on first use in the footer. The problem is that there is no possibility to reference a page or section with this cite command.
example: \cite[p. 12]{somebibref} ignores the optional parameter.
The citation should be in brackets like this: ...Lorem explains [1, p.12]... This is the code snipped i got but i dont know how to modify it for my purpose.

What do I need to modify to add the additional parameter only in the citation in the text not in the footer?

\makeatletter

\newtoggle{cbx@togcite}

% remove doi, eprint and url from footnote
%\renewbibmacro*{doi+eprint+url}{}%

% Citation number superscript in brackets
\renewcommand\@makefntext[1]{%
\iftoggle{cbx@togcite}
{\@textsuperscript{\normalfont[\@thefnmark]}\enspace #1}
{\@textsuperscript{\normalfont\@thefnmark}\enspace #1}%
\global\togglefalse{cbx@togcite}}

\renewcommand\@makefntext[1]{%
\iftoggle{cbx@togcite}
{\normalfont[\@thefnmark]\enspace #1}
{\normalfont\@thefnmark\enspace #1}%
\global\togglefalse{cbx@togcite}}

\DeclareCiteCommand{\cite}[\cbx@superscript]%
{\usebibmacro{cite:init}%
\let\multicitedelim=\supercitedelim
\iffieldundef{prenote}
{}
{\BibliographyWarning{Ignoring prenote argument}}%
\iffieldundef{postnote}
{}
{\BibliographyWarning{Ignoring postnote argument}}}
{\usebibmacro{citeindex}%
\usebibmacro{sfcite}%
\usebibmacro{cite:comp}}
{}
{\usebibmacro{cite:dump}}

\newbibmacro*{sfcite}{%
\ifciteseen
{}
{\xappto\cbx@citehook{%
\global\toggletrue{cbx@togcite}%
\noexpand\footnotetextA[\thefield{labelnumber}]{%

\newrobustcmd{\cbx@superscript}[1]{%
%\mkbibsuperscript{\mkbibbrackets{#1}}%
\mkbibbrackets{#1}%
\cbx@citehook%
\global\let\cbx@citehook=\empty}

\let\cbx@citehook=\empty

\endinput

• What about using \textcite[][p]{foo} where p is the page? – Romain Picot Oct 20 '15 at 20:08
• \textcite does not put it on first use in the footer and writes all authors out. should be et al.for multiple authors – baam Oct 20 '15 at 20:22
• Can you give bit more detail what you want? Do you want to have normal sized brackets with a postnote and a footnote otherwise? (The code you have, doesn't incidentally come from another question here? If it does a link would be nice.) – moewe Oct 21 '15 at 6:38
• I guess you took the code from Biblatex cite with footnote only once, with use of brackets? – moewe Oct 21 '15 at 6:44
• I got the Code from a college - but good to know he got it from here ;). Right now it cites on first sight with with a number in the brackets and puts a full citation in the footnote. The only part that is missing, is that i cant figure out how to pass additional parameter like a page reference. I take a look at your link. thanks – baam Oct 21 '15 at 6:47

Since you don't actually implement a "supercite" here, but rather a normal bracketed cite you could try

\DeclareCiteCommand{\cite}[\cbx@superscript]%
{\usebibmacro{prenote}%
\usebibmacro{cite:init}}
{\usebibmacro{citeindex}%
\usebibmacro{sfcite}%
\usebibmacro{cite:comp}}
{}
{\usebibmacro{cite:dump}%
\usebibmacro{postnote}}


Though I suspect the whole thing could be done even easier.

I believe you can get about the same thing (when using numeric-comp) with only

\makeatletter
\renewbibmacro*{cite:comp}{%
\ifciteseen
{}
{\renewcommand{\@makefntext}[1]{\noindent\normalfont##1}%
\footnotetext{%
\printtext[labelnumberwidth]{%
\printfield{prefixnumber}%
\printfield{labelnumber}}%
\bibfootnotewrapper{\fullcite{\thefield{entrykey}}}}}%
\iffieldundef{shorthand}
{\ifbool{bbx:subentry}
{\iffieldundef{entrysetcount}
{\usebibmacro{cite:comp:comp}}
{\usebibmacro{cite:comp:inset}}}
{\usebibmacro{cite:comp:comp}}}
{\usebibmacro{cite:comp:shand}}}
\makeatletter


MWE

\documentclass{article}

\usepackage[%
backend=biber,
style=numeric-comp,
citetracker=true,
]{biblatex}

\makeatletter
\renewbibmacro*{cite:comp}{%
\ifciteseen
{}
{\renewcommand{\@makefntext}[1]{\noindent\normalfont##1}%
\footnotetext{%
\printtext[labelnumberwidth]{%
\printfield{prefixnumber}%
\printfield{labelnumber}}%
\bibfootnotewrapper{\fullcite{\thefield{entrykey}}}}}%
\iffieldundef{shorthand}
{\ifbool{bbx:subentry}
{\iffieldundef{entrysetcount}
{\usebibmacro{cite:comp:comp}}
{\usebibmacro{cite:comp:inset}}}
{\usebibmacro{cite:comp:comp}}}
{\usebibmacro{cite:comp:shand}}}
\makeatletter