Haml ruby conditional init_rails(binding) It's working now, but I'm wondering if this is really a good way to do it. Haml is a drop-in replacement A Template Engine for Ruby on Rails What is it? Haml (HTML abstraction markup language) is based on one primary principle: markup should be beautiful. left. I would like the if conditional to return the I am trying to get Haml to work with my Ruby on Rails project. In this case a user should have a role. Why Rails is not calling Haml "init. It aims to reduce repetition in your markup by closing tags for you based on the Haml #content . I will post it as a memorandum. create_button= link_ I need this construction in my HAML code: - if something1 %div. Inside the layout we are going to have html standard content with haml, ruby, javascript embeded: Hi all, I've got a Rails app that I'm converting over to using HAML as part of a redesign. However, for an embedded ruby line (a line that starts with - or 13 This question already has answers here: Haml: Append class if condition is true in Haml (5 answers) How do i do an inline if statement in haml Ask Question Asked 13 years, 11 months ago Modified 13 years, 11 months ago doSomething(); } The drawback is that you can't indent your JS in HAML unless you're using the :javascript filter. However, when I attempt to add an aplication. This time it is described in haml. sample. column %h2 Welcome to our site! %p= print_information . I'm well aware that in Correct format for writing conditionals in ruby and then converting output into string using string interpolation inside HAML tag Asked 6 years, 10 months ago Modified 5 years, 11 Conditions play a vital role in Ruby on Rails development, allowing you to control the flow of your application based on different scenarios. active? ) } You can do multiple conditional class selectors with array syntax: %div{ class: [ At that time, the conditional expression has a special pattern of using both if and unless. html. I am new to Ruby on Rails and I really like it. Haml functions as a Conditionally wrapping elements in haml Asked 9 years, 11 months ago Modified 9 years, 11 months ago Viewed 407 times I am a newbie in haml and I have learnt basics of haml and I am now able to convert a simple html form in haml but I am stuck in a little problem. rb #In the view The one-page guide to Haml: usage, examples, links, snippets, and more. column %h2 Welcome to our site! %p= It is a popular alternative to using Rails templating language (. The partial consists of only an if conditional. how to add a class to a conditional in HAML Asked 10 years, 9 months ago Modified 8 years, 7 months ago Viewed 3k times conditional logic not working in haml Asked 12 years, 7 months ago Modified 12 years, 7 months ago Viewed 2k times Haml: Append class if condition is true in Haml Ask Question Asked 15 years, 8 months ago Modified 4 years, 9 months ago Conditional Class Selectors in Haml You can assign a class selector to a tag in HAML like so: rails Conditional Class Selectors in Haml You can assign a class selector to a tag in HAML like so: If else condition in HAML Asked 12 years, 3 months ago Modified 12 years, 3 months ago Viewed 1k times Haml Haml is a templating engine for HTML. I was trying something along these lines: - if actio I'm new to Ruby and HAML and attempting to render the following partial inside of main HAML file. The difference is that it allows injections of embedded Ruby commands. It could be possible to modify Haml to be able to use do. What I would like to do is add a link_to tag on top of the rest of the blockquote if the quote object has link. This module contains various helpful methods to make it easier to do various tasks. ) that tries to impose such restrictions. The each. do establishes a loop to displ Ideally you would not cram all the conditionals inline, it will be ugly and difficult to read. Got one tricky issue, how to write down this erb partial: <% if Multiple Conditional Classes in HAML Asked 10 years, 8 months ago Modified 10 years, 8 months ago Viewed 2k times How to do an if/else in HAML without repeating indented code Asked 15 years, 7 months ago Modified 12 years, 4 months ago Viewed 28k times Conditionally set HTML element id with HAML Ask Question Asked 15 years, 5 months ago Modified 9 years, 3 months ago Rails HAML conditional link_to Ask Question Asked 13 years, 6 months ago Modified 13 years, 6 months ago How to make make a conditional for a HAML class in ruby Asked 10 years ago Modified 10 years ago Viewed 547 times Haml (HTML Abstraction Markup Language) Haml is a markup language that’s used to cleanly and simply describe the HTML of any web document, without the use of inline code. column = render :partial I am trying to use an IE conditional comment based on the advice found this topic. A templating engine helps you mix HTML & Ruby. Haml can be used in three ways: as a command-line tool, as a plugin for Ruby on Rails, and as a standalone Ruby module. In this tutorial you'll learn how to write ERB loops, if statements, etc. In the Haml tutorial has this sample: ERB Welcome to our site! "sidebar" %> Haml #content . a - elsif something2 %div. It's designed to make it both easier and more pleasant to write HTML documents, by eliminating redundancy, reflecting the underlying structure that the Getting Started First, get Haml and install the gem (this tutorial assumes you're using Rails — it should apply to other frameworks and standalone Haml just as well, though). Furthermore, indention level indicates block level. Haml also allows for three types of comments: HTML comments, conditional comments, and Haml comments. end or {}, but the extra complexity Haml was created by Hampton Catlin, the author of the original implementation. Theoretically you can insert your ERB vs HAML conversion of an if condition? Asked 15 years, 6 months ago Modified 14 years, 11 months ago Viewed 14k times Haml #content . erb) and allows you to embed Ruby code into your markup. What I need to be able to do is to set an if condition based on the productCode listed in SF. I am trying to edit a Ruby on The filters in HAML are processed separately from the other code, and the only thing allowed here is the #{} method, which just inserts a Ruby value. " [ !IE]" conditional comments in Haml However it's not working, and I don't know why. end and looks "cluttery", I think you should look at implementing "Presenter Conditionals if statements allow you to take different actions depending on which conditions are met. I'd like to avoid that, but I don't know how to properly write a Ruby "if" statement inside a HAML :javascript block. b - elsif something3 %div. Indentation is significant in I have a haml ruby site that is pulling data from Salesforce. d %div another content I would expected I get something HAML: Create container/wrapper element only if condition is true Ask Question Asked 14 years, 3 months ago Modified 9 years, 4 months ago haml conditional if/else indentation Asked 14 years, 4 months ago Modified 14 years, 4 months ago Viewed 3k times Haml is a markup language predominantly used with Ruby that cleanly and simply describes the HTML of any web document without the use of inline code. It’s not Conditional tags with HAML Asked 15 years, 7 months ago Modified 12 years, 10 months ago Viewed 3k times HAML, also known as HTML abstraction markup language, is a templating language that was designed to make the HTML cleaner while Haml: If statement inside attribute declaration Asked 10 years ago Modified 10 years ago Viewed 984 times Ruby code can be incorporated into Haml templates using the ‘=’ sign. A few rules: HTML tags are In the Haml tutorial has this sample: ERB Welcome to our site! "sidebar" %> Haml #content . Norman Clarke was the primary maintainer of Haml from VS Code extension to provides syntax highlighting, linting, go to definition, and snippets for Ruby Haml files. Ideally, I'd like to achieve something like the following in my Haml files: How to make a Haml form with two conditional actions Ask Question Asked 6 years, 4 months ago Modified 5 years, 10 months ago HAML question - conditional multiple classes on a div Rails apswartz February 15, 2008, 5:29am 1 It's obviously not very clean since I'm repeating the :javascript haml filter. Haml was created by Hampton Catlin, the author of the original implementation. - @data = 'contract-confirm' . column = render :partial => “sidebar” I want to convert a similar block that includes a TIL is an open-source project by Hashrocket that exists to catalogue the sharing & accumulation of knowledge as it happens day-to-day. In Sublime Text 2 and a file with "Ruby Haml" syntax, adding Haml comments using the keybinding work fine for haml lines. haml by default. column = render :partial => “sidebar” I want to convert a similar block that includes a How to use "if" condition in Haml for "content_for" Asked 5 years, 1 month ago Modified 5 years, 1 month ago Viewed 259 times How can I use multiple lines for a single Ruby statement in HAML? For example, I'd like to write something like the following: HAML question - conditional multiple classes on a div rubyonrails-talk Alan_Smith (Alan Smith) February 15, 2008, 4:28am 1 What is an elegant way to conditionally add a higher level html element without repeating the inner contents? How can this be achieved without using partials (all content in one I want to set a :data attr if a condition is met. For example: if city == "Toronto" drinking_age = 19 else HAML is the only language I know of (c, c++, ruby, python, HTML, etc. 0) was to write anything written to standard out to the Haml document, but this wasn’t thread safe. I tried to challenge. Ruby/Haml: Conditionally/Optionally setting an attribute/class One of the things that we want to do reasonably frequently is set an attribute (most often a class) on a HTML element You can conditionally assign a class selector in a concise manner like so: %div{ class: ( "active" if @thing. So it's a boolean statement. Learn how their syntax, attributes, whitespace, and readability differ so you can choose the right These are found in app/views/layouts using application. It's ok for a few lines, but it can get messy quickly. haml I reuse this pattern in many Haml files, so I am wondering what is the best way to abstract-out the conditional logic. The first step for all of these is to install the Haml gem:. I have a condition where if action_name contains "index" then the second class should return "index" only, otherwise, set it to action_name. 9 In haml, use the - (dash) to indicate a line is Ruby code. haml_io is a local variable that refers Ruby -# This is a comment -# Anything starting with a hyphen signals to Haml that Ruby Tagged with haml, cheatsheet. So, opportunity: :opportunity is essentially the same as :opportunity => :opportunity, In this case, you're This behaviour changed recently – the old behaviour (before version 4. Then, after the name of the tag is =, which tells Haml to evaluate Ruby code to the right and then print out the return value as the The Beginner's Guide to Ruby If & Else Statements Today you'll learn exactly what a Ruby if statement is, how to write a conditional statement in Ruby & why is this Natalie Weizenbaum was for many years the primary developer and architect of the "modern" Ruby implementation of Haml. rb" file and so initializing Haml correctly by just For one or two such conditional logic in your views, I guess its fine but when your code gets bigger and you have multiple if. I am converting this code in haml but not Haml/Ruby/Rails adding an element conditionally? Asked 12 years, 4 months ago Modified 12 years, 4 months ago Viewed 100 times Haml Advantages and Drawbacks Haml is intended for “elegant” markup, eliminating the repetitive tags of HTML and integrating conditional logic succinctly. haml_io is a local variable that refers This behaviour changed recently – the old behaviour (before version 4. Let me give an example. Hampton is no longer involved in day-to-day coding, but still consults on language issues. Haml Convert conditional opening html elements into haml Asked 11 years, 9 months ago Modified 11 years, 9 months ago Viewed 144 times Haml: Conditional with list items? Ask Question Asked 15 years, 5 months ago Modified 15 years, 5 months ago For those not familiar with templating in Rails, HAML is very similar to the Pug templating language. This makes assignment based on conditions quite clean I have an annoying view problem that I'm trying to debug and no where on the Haml Documentation Haml Docs does it specify how to debug view code. Is there any practical Set class and data in HAML based on condition Asked 10 years ago Modified 10 years ago Viewed 545 times In ruby, you can have a hash where both key and value can be symbols. Combine the two for if/else statements. In this Okay, so here we go and some very basic stuff about HAML would be, HAML stands for HTML Abstraction Markup Language. The code output may not be what you desired, as ERB is a templating engine. It contains information on every language feature, all the options, and how to install it as a Ruby gem. Hampton is no longer involved in day-to-day coding, but still consults on Ruby condition within HAML and Javascript Asked 13 years, 7 months ago Modified 13 years, 7 months ago Viewed 485 times Haml, short for HTML Abstraction Markup Language, is a markup language that’s used to cleanly and simply describe the HTML of any web document without the use of inline code. The Haml reference is the most complete documentation for Haml. Here, we will explain all the conditional statements and modifiers available in require 'haml' Haml. Conditional CSS in Ruby and Haml Table Asked 10 years, 6 months ago Modified 10 years, 6 months ago Viewed 949 times I'm going through examples from 'Agile Web Dev with Rails' book, but mixing it with extra techniques i found useful - like haml. - wilfison/vscode-haml-all Conditional assignment Ruby is heavily influenced by lisp. One piece of obvious inspiration in its design is that conditional operators return values. I tried to show how to use an if conditional inside HAML. During the conversion process, we want to keep the new views away from most of our users until Ruby offers conditional structures that are pretty common to modern languages. right. haml or index. . It is a new template engine for Ruby on Rails. It’s easier to read. else. And how ERB I am trying to write a conditional statement in my HAML views file. This is very annoying and all I - if @condition , then render this half of the sentence if a condition is met You may, however, note that this produces a space between the link and the comma. Natalie Weizenbaum was for How would I format HAML to output a style similar to the conditional HTML tags used for cross-browser targeting? Compare Haml vs Slim for Ruby and Rails views. Calling the weird multi-line handling a feature rather than a bug, just This works for %strong, %div, %body, %html; any tag you want. Instead, build the string of class names before and pass it into the haml tag. It is a popular alternative to using Rails = component 'GridTeaser', entry Change code as per the logic you have in mind. Helpers is automatically included in the context that a Haml template is parsed in, so all these When Haml compiles the template to Ruby the hardcoded string end is added to close any blocks as needed. c - else %div.