\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{dmhenaopa} \pdfinfo{ /Title (consola-de-ruby-on-rails.pdf) /Creator (Cheatography) /Author (dmhenaopa) /Subject (Consola de Ruby On Rails Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{C81418} \definecolor{LightBackground}{HTML}{FBF0F0} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Consola de Ruby On Rails Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{dmhenaopa} via \textcolor{DarkBackground}{\uline{cheatography.com/210405/cs/45379/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}dmhenaopa \\ \uline{cheatography.com/dmhenaopa} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 4th January, 2025.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{2} \begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Comandos Básicos}} \tn % Row 0 \SetRowColor{LightBackground} bin/rails console & Iniciar la consola \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2 cm} x{6 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Comandos para Ejecutar en la Consola}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Rails.version} & Obtener la versión de Rails \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} exit & Salir de la Consola \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} reload! & Recargar y actualizar en la Consola en Ejecución \tn % Row Count 5 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.6 cm} x{4.4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Interacción con Tablas de la Base de Datos}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Clase.column\_names} & Obtener un arreglo con los nombres de las columnas en la tabla asociada al modelo \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} \seqsplit{Clase.new(variable:} valor) & Crear una nueva instancia de un modelo con valores iniciales asignados a sus atributos sin guardarla en la base de datos \tn % Row Count 10 (+ 6) % Row 2 \SetRowColor{LightBackground} \seqsplit{Clase.create(variable:} valor) & Crear la instancia y guardarla inmediatamente en la base de datos \tn % Row Count 13 (+ 3) % Row 3 \SetRowColor{white} Clase.all & Obtener todos los registros de una tabla \tn % Row Count 15 (+ 2) % Row 4 \SetRowColor{LightBackground} \seqsplit{Clase.where(variable:} valor) & Obtener registros que cumplan una condición específica \tn % Row Count 18 (+ 3) % Row 5 \SetRowColor{white} \seqsplit{Clase.order(variable:} :asc) & Ordenar los registros de una consulta según un atributo específico, en orden ascendente \tn % Row Count 23 (+ 5) % Row 6 \SetRowColor{LightBackground} \seqsplit{Clase.order(variable:} :desc) & Ordenar los registros de una consulta según un atributo específico, en orden descendente \tn % Row Count 28 (+ 5) % Row 7 \SetRowColor{white} Clase.find(id) & Buscar un registro en la base de datos por su identificador único \tn % Row Count 31 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{3.6 cm} x{4.4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Interacción con Tablas de la Base de Datos (cont)}} \tn % Row 8 \SetRowColor{LightBackground} \seqsplit{instancia.update(variable:} valor) & Actualizar los atributos de una instancia de un modelo y guardar los cambios en la base de datos \tn % Row Count 5 (+ 5) % Row 9 \SetRowColor{white} \seqsplit{instancia.variable} = valor & Asignar un valor a un atributo de una instancia de un modelo sin guardar automáticamente los cambios en la base de datos \tn % Row Count 11 (+ 6) % Row 10 \SetRowColor{LightBackground} instancia.save & Guardar los cambios hechos a la instancia en la base de datos \tn % Row Count 14 (+ 3) % Row 11 \SetRowColor{white} instancia.errors & Acceder a los errores de validación de una instancia de un modelo \tn % Row Count 17 (+ 3) % Row 12 \SetRowColor{LightBackground} \seqsplit{instancia.errors.full\_messages} & Retornar un array de mensajes de error legibles que se pueden mostrar al usuario para indicar qué validaciones fallaron en una instancia del modelo \tn % Row Count 24 (+ 7) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}