Resources for learning to output xml from rails? - ruby-on-rails

I would like to use rails to output xml on a request from a client (Android device). I have gleaned from web searches that .builder.xml files are the way to go for this, but I cannot find a single tutorial or guide to get me started that is newer that 2006.. does anyone know of a good resource for xml and rails?

It's probably best to look at the official XML Builder homepage and follow/try the examples there: http://builder.rubyforge.org/
You can use XML Builder in both your controller or in your views, the code is the same. However, inside an .builder view you already have access to a builder instance via the "xml" variable. See: http://danengle.us/2009/05/generating-custom-xml-for-your-rails-app/

Take a look at this article about XML Builder.
I also highly recommend you to use Nokogiri to generate XML.

Related

Choose a tools to documents REST API

I actually use Doxygen to document my php REST application and I just discover Apiary & Swagger witch seem to be good tools to document API...I want to know if there is a way to generate documentation automatically using one of this tools (apiary or swagger ) based on the code comments?
Using swagger-php you can generate the documentation automatically from a collection of php scripts documented using annotations.
Swagger-PHP is decently documented here: http://zircote.com/swagger-php/
A working example can be found on github: https://github.com/zircote/swagger-php/tree/master/Examples/Petstore
Regarding the generation of the json file containing the documentation check my answer here: https://stackoverflow.com/a/31178997/2853903

Moving template to separate files

In a Rails app I consume data from an external service in json format.
Right now I do something like.
json-data = $get ....
template = "<div>..{{whatever}}..</div>"
$('#target').append Mustache.to_html(template, json-data)
And it works fine. However, more and more the app and the templates grow I wish to be able to store the template in separate files (also because I'm starting to have some duplications).
I have created the folder app/assets/templates and put there myTemp.mustache template. But, now I don't know how to load it into my script.
Any suggestions?
Thanks and have a nice day.
You should take a look at the awesome gem http://github.com/railsware/smt_rails . It is very easy to use
There is great cast from RyanB Sharing Mustache Templates and here is the sample code episode-295 in case you don't have pro subscription. Also look in this gem.

Creating XML document using titanium

I am unable to find any examples or pre-defined XML methods to create XML document using titanium. Do any body have an example or methods to create XML document using Titanium [Appcelerator]. Any suggestions on this ?
Thanks
Ranjith
You might want to start your search with Titanium's documentation:
http://docs.appcelerator.com/titanium/latest/#!/guide/Working_with_XML_Data
Or with the whole namespace dedicated to manipulating XML, Titanium.XML:
http://docs.appcelerator.com/titanium/latest/#!/api/Titanium.XML

Troubleshooting "call to undefined function" when adding Markdown to project

I'm trying to add some Markdown capabilities to my Symfony project (Symfony version 1.3.3).
To accomplish that, I had already included the Markdown library into lib/vendor directory. Also, I added the need configuration in the autoload.yml for the previous library.
However, I'm getting a fatal PHP error:
Call to undefined function Markdown()
How can I resolve this problem?
The symfony autoloader loads classes from php files named like <classname>.class.php. If you're using the markdown.php file from mitchelf.com, it does not follow the naming scheme, nor does it contain a class called Markdown, as a matter of fact: it has a function called Markdown.
Symfony isn't even trying to load it, for reasons I described above. You will have to include it manually. I suggest you have a look at http://www.symfony-project.org/plugins/sfEasyMarkdownPlugin.
I do NOT suggest installing a plugin for such a simple feature. It is not hard for you to figure it out if you have some real examples.
There is an open source project based on symfony named Bookeet. It has embedded MarkDowm feature. It uses markitup as the markdown editor. And it uses php markdown to convert markdown code to html code.
To save your time, go directly to changeset 29f0ba1807 of the Bookeet project(I am sorry that I can't post the hyperlink because SO doesn't permit new user to post more than one hyperlink). You could see clearly what should be done in order to add markdown feature to your website.

Creating Microsoft Word (.docx) documents in Ruby

Is there an easy way to create Word documents (.docx) in a Ruby application? Actually, in my case it's a Rails application served from a Linux server.
A gem similar to Prawn but for DOCX instead of PDF would be great!
As has been noted, there don't appear to be any libraries to manipulate Open XML documents in Ruby, but OpenXML Developer has complete documentation on the format of Open XML documents.
If what you want is to send a copy of a standard document (like a form letter) customized for each user, it should be fairly simple given that a DOCX is a ZIP file that contains various parts in a directory hierarchy. Have a DOCX "template" that contains all the parts and tree structure that you want to send to all users (with no real content), then simply create new (or modify existing) pieces that contain the user-specific content you want and inject it into the ZIP (DOCX file) before sending it to the user.
For example: You could have document-template.xml that contains Dear [USER-PLACEHOLDER]:. When a user requests the document, you replace [USER-PLACEHOLDER] with the user's name, then add the resulting document.xml to the your-template.docx ZIP file (which would contain all the images and other parts you want in the Word document) and send that resulting document to the user.
Note that if you rename a .docx file to .zip it is trivial to explore the structure and format of the parts inside. You can remove or replace images or other parts very easily with any ZIP manipulation tools or programmatically with code.
Generating a brand new Word document with completely custom content from raw XML would be very difficult without access to an API to make the job easier. If you really need to do that, you might consider installing Mono, then use VB.NET, C# or IronRuby to create your Open XML documents using the Open XML Format SDK 1.0. Since you would just be using the Microsoft.Office.DocumentFormat.OpenXml.Packaging Namespace to manipulate Open XML documents, it should work okay in Mono, which seems to support everything the SDK requires.
Maybe this gem is interesting for you.
https://github.com/trade-informatics/caracal/
It like prawn but with docx.
You can use Apache POI. It is written in Java, but integrates with Ruby as an extension
This is an old question but there's a new answer. If you'd like to turn an HTML doc into a Word (docx) doc, just use the 'htmltoword' gem:
https://github.com/karnov/htmltoword
I'm not sure why there was answer creep and everyone started posting templating solutions, but this answers the OP's question. Just like Prawn, except Word instead of PDF.
UPDATE:
There's also pandoc and an API wrapper for pandoc called docverter. Both have slightly complicated installs since pandoc is a haskell library.
I know if you serve a HTML document as a word document with the .doc extension, it will open in Word just fine. Just don't do anything fancy.
Edit: Here is an example using classic ASP. http://www.aspdev.org/asp/asp-export-word/
Using a technique very similar to that suggested by Grant Wagner I have created a Ruby html to word gem that should allow you to easily output Word docx files from your ruby app. You can check it out at http://github.com/nickfrandsen/htmltoword - Simply pass it a html string and it will create a corresponding word docx file.
def show
respond_to do |format|
format.docx do
file = Htmltoword::Document.create params[:docx_html_source], "file_name.docx"
send_file file.path, :disposition => "attachment"
end
end
end
Hope you find it useful. If you have any problems with it feel free to open a github issue.
Disclosure: I'm the leader of the docxtemplater project.
I know you're looking for a ruby solution, but because all other solutions only tell you how to do it globally, without giving you a library that does exactly what you want, here's a solution based on JS or NodeJS (works in both)
DocxTemplater Library
Demo of the library
You can also use it in the commandline:
npm install docxtemplater -g
docxtemplater <configFile>
----config.docxFile: The input file in docx format
----config.outputFile: The outputfile of the document
This is a way Doccy (doccyapp.com) has a api that does just that which you can use. Supports docx, odt and pages and converts to PDF as well if you like
Further to Grant's answer, you can also send Word a "Flat OPC" file, which is essentially the docx unzipped and concatenated to create a single xml file. This way, you can replace [USER-PLACEHOLDER] in one file and be done with it (ie no zipping or unzipping).
If anyone is still looking at this, this post explains how to use an XML data source. This works nicely for me.
http://seroter.wordpress.com/2009/12/23/populating-word-2007-templates-through-open-xml/
Check out this github repo: https://github.com/jawspeak/ruby-docx-templater
It allows you to create a document from a word template.
If you're running on Windows, of course, it's a matter of WIN32OLE and some pain with the Word COM objects.
Chances are that your serving from a *nix environment, though. Word 2007 uses the "Microsoft Office Open XML" format (*.docx) which can be opened using the appropriate compatibility pack from Microsoft.
Some of the more recent Office apps (2002/XP and 2003 at least) had their own XML formats which may also be useable.
I'm not aware of any Ruby tools to make the process easier, sadly.
If it can be made acceptable, I think I'd be inclined to go down the renamed-html file route. I just saved a document as HTML from WordXP, renamed it to a .doc and opened it without problem.
I encountered the same problem. Unfortunately I could not manipulate the xml because my clients should themselves to fill in templates. And to do this is not always possible (for example, office for mac does not allow this).
As a solution to this problem, I made ​​a simple gem, which can be used as an rtf document template with embedded ruby: https://github.com/eicca/rtf-templater
I tested it and it works ok for filling reports and documents. However, formatting badly displays for complex loops and conditions.

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