#Related to minitoc demonstration of http://tex.stackexchange.com/a/284781/2956 where only the main TOC printed, not the sub TOCs.

\documentclass{book}
\usepackage{subfiles}
\usepackage{lipsum}
\usepackage{minitoc}
\dominitoc

\begin{document}

\tableofcontents
\let\tableofcontents\relax

\chapter{Foo}
\section{Bar}
\lipsum[1-2]
\section{Baz}
\lipsum[1-2]
\subfile{myfile1}
\subfile{myfile2}
\subfile{myfile3}
\end{document}% main file is called myfile.tex
% this is myfile1.tex
\documentclass[myfile]{subfiles}
\begin{document}
\tableofcontents
\chapter{Foo1}
\section{Bar1}
\lipsum[1-2]
\section{Baz1}
\lipsum[3-4]
\end{document}% main file is called myfile.tex
% this is myfile2.tex
\documentclass[myfile]{subfiles}
\begin{document}
\tableofcontents
\chapter{Foo2}
\section{Bar2}
\lipsum[5-6]
\section{Baz2}
\lipsum[7-8]
\end{document}
% main file is called myfile.tex
% this is myfile3.tex
\documentclass[myfile]{subfiles}
\begin{document}
\tableofcontents
\chapter{Foo3}
\section{Bar3}
\lipsum[9-10]
\section{Baz3}
\lipsum[10-11]