Access Mustache object inside ICanHaz object - templates

I am using icanhaz inside my project. As per documentation it says that it includes the Mustache.js as well.
Now I want to access the embedded Mustache object's to_html() method as follows.
var message = Mustache.to_html(template, json, true);
I am however getting error 'Mustache not defined'. Since Mustache is already included inside iCanHaz.js and I am successfully using ICanHaz's other methods as well, I should not need to include entire Mustache library again just for calling this single method, Or should I?
I just want my template to render as normal string with values replaced from my json object. Any other simple and lightweight way is also appreciated.
Thanks

No need to directly use the Mustache object.
Pass true to your normal ICanHaz render method to get the HTML string:
var message = ich.myTemplate(json, true);

Related

How to automate M2Doc generation including the settings?

I've applied the guidance on programmatic usage of M2Doc (also with this help) to successfully generate a document via the API, which was previously prepared by using the M2Doc GUI (configured .docx plus a .genconf file). It seems to also work with a configured .docx, but without a .genconf file.
Now I would like to go a step further and ease the user interface in our application. The user should come with a .docx, include the {m:...} fields there, especially for variable definition, and then in our Eclipse application just assign model elements to the list of variables. Finally press "generate". The rest I would like to handle via the M2Doc API:
Get list of variables from the .docx
Tell M2Doc the variable objects (and their types and other required information, if that is separately necessary)
Provide M2Doc with sufficient information to handle AQL expressions like projectmodel::PJDiagram.allInstances() in the Word fields
I tried to analyse the M2Doc source code for this, but have some questions to achieve the goal:
The parse/generate API does not create any config information into the .docx or .genconf files, right? What would be the API to at least generate the .docx config information?
The source code mentions "if you are using a Generation" - what is meant with that? The use of a .genconf file (which seems to be optional for the generate API)?
Where can I get the list of variables from, which M2Doc found in a .docx (during parse?), so that I can present it to the user for Object (Model Element) assignment?
Do I have to tell M2Doc the types of the variables, and in which resource file they are located, besides handing over the variable objects? My guess is no, as using a blank .docx file without any M2Doc information stored also worked for the variables themselves (not for any additional AQL expressions using other types, or .oclAsType() type castings).
How can I provide M2Doc with the types information for the AQL expressions mentioned above, which I normally tell it via the nsURI configuration? I handed over the complete resourceSet of my application, but that doesn't seem to be enough.
Any help would be very much appreciated!
To give you an impression of my code so far, see below - note that it's actually Javascript instead of Java, as our application has a built-in JS-Java interface.
//=================== PARSING OF THE DOCUMENT ==============================
var templateURIString = "file:///.../templateReqs.docx";
var templateURI = URI.createURI(templateURIString);
// canNOT be empty, as we get nullpointer exceptions otherwise
var options = {"TemplateURI":templateURIString};
var exceptions = new java.util.ArrayList();
var resourceSetForModels = ...; //here our application's resource set for the whole model is used, instead of M2Doc "createResourceSetForModels" - works for the moment, but not sure if some services linking is not working
var queryEnvironment = m2doc.M2DocUtils.getQueryEnvironment(resourceSetForModels, templateURI, options);
var classProvider = m2doc.M2DocPlugin.getClassProvider();
// empty Monitor for the moment
var monitor = new BasicMonitor();
var template = m2doc.M2DocUtils.parse(resourceSetForModels.getURIConverter(), templateURI, queryEnvironment, classProvider, monitor);
// =================== GENERATION OF THE DOCUMENT ==============================
var outputURIString = "file:///.../templateReqs.autogenerated.docx";
var outputURI = URI.createURI(outputURIString);
variables["myVar1"] = ...; // assigment of objects...
m2doc.M2DocUtils.generate(template, queryEnvironment, variables, resourceSetForModels, outputURI, monitor);
Thanks!
No the API used to parse an generate don't modifies the template file nor the .genconf file. To modify the configuration of the template you will need to use the
TemplateCustomProperties class. That will allow you to register your metamodels and service classes. This instormation is then used to configure the IQueryEnvironment, so you might also want to directly configure the IQueryEnvironment in your code.
The generation in this context referes to the .genconf file. Note The genconf file is also an EMF model, so you can also craft one in memory to launch you generation if it's easier for you. But yes the use of a .genconf file is optional like in your code example.
To the list of variables in the template you can use the class TemplateCustomProperties:
TemplateCustomProperties.getVariables() will list the variables that are declared with their type
TemplateCustomProperties.getMissingVariables() to list varaibles that are used in the template but not declared
You can also find le list of used metamodels (EPackage nsURIs) and imported services classes.
The type of variables is not needed at generation time, it's only needed if you want to validate your template. At generation time you need to pass a map from the variable name to its value as you did in your example. The value of a variable can be a any object from your model (an EObject), a String, an Integer, ... If you want to use something like oclIsKindOf(pkg::MyEClass) you will need to register the nsURI of pkg first see the next point.
The code you provided should let you use something like projectmodel::PJDiagram.allInstances(). This service needs a ResourceSetRootEObjectProvider() that is initialized in M2DocUtils.getQueryEnvironment(). But you need to declare the nsURI of your metamodel in your template (see TemplateCustomProperties). This will register it in the IQueryEnvironment. You can also register it yourself using IQueryEnvironment.registerEPackage().
This should help you finding the missing parts in the configuration of the AQL environment. Your code seems good and should work when you add the configuration part.

Rendering from strings instead of files with MarkoJS

I'm using markojs for my emails templates but now we are moving these templates inside our database to edit them online.
We still need to use marko to keep our full HTML structure and variables behavior aswell.
I've found 2 ways to get templates as string like renderSync() method but it need the template to exist as file before or with compile() but I don't know how to make it work with variables handling.
You can use Marko's load method to compile templates and get back the template instance which you can then render to get the final HTML:
const template = require("marko").load(templatePath, templateSource, compilerOptions);
const html = template.renderSync(data);
You probably don't need to pass any custom compilerOptions and can omit the last argument.
Even though your template doesn't exist on disk, you still need to pass a templatePath to a real directory with a dummy .marko file. For instance you could do this:
const templatePath = path.join(__dirname, `${database.id}.marko`);
The templatePath is used for two purposes:
As a key for node's require cache. If you request to compile the same filename multiple times, you will get the original compilation. This might mean you need to purge the require cache when a template is edited: delete require.cache[templatePath];
To discover custom Marko tags. If you have custom tags/components that are intended to be used by the email templates, you should make sure that the path specified by templatePath allows those tags to be discovered.

Ember-Model init issue

I concatinate my application code from multiple js files into one js file. Therefore I can't control the order, and to be honest would not want to. To specify a custom adapter with ember-model you need to create an instance of it like so:
App.User.adapter = Ember.CustomAdapter.create();
So if the CustomAdapter's code appears after the above statement I get the [Uncaught TypeError: Cannot call method 'create' of undefined] error.
App.User.adapter = App.CustomAdapter.create();
App.CustomAdapter = Ember.Adapter.extend({
// custom
});
Is there a way around this?
The order of code loading is very, very important. That's just a fact of life. You need to either figure out how to make your current tool load things in the order that you want, or you need a new tool.

ember js compare values in DOM if statement or at least in a View with value from DOM

I been trying to compare some values in handlebars if statement {{#if value == 'otherValue'}}, obviously unsuccessfully because handlebars do not like this and expecting a string, boolean, or function name. Well that would be ok, but then I tried to pass parameter in the function like you can do with {{action}} helper, and well that didn't workout either, got this in console
Error: assertion failed: You must pass exactly one argument to the if helper
So then I decided to do this in a View, even so ember js guides points that accessing template values in-scope is unusual and they provide only poor paragraph with no examples.
http://emberjs.com/guides/understanding-ember/the-view-layer/#toc_accessing-template-variables-from-views
So when I tried to do this, I got a problem of accessing those variables, I tried this way this.get('controller.templateVariables') and via full path to View, but value was either undefined or .get() wasn't exists as a method.
So at this moment I decided to save variable in the DOM data property, but turns out this {{#view App.TabsView data-title="{{tab}}"}} is going to literately give me a string {{tab}} when I try to access it from View with this.get('data-title').
The only way left to me was to insert additional element inside view and store variable there, and afterwards access it with jQuery class selector. but element is not yet exist in the DOM at the time of isVisible function gets executed, so I have no access to values at that time. That explains why this.get('element') was returning null.
Similar examples on ember js mostly ends up with something like if (someLogic) {}, but how I can do any logic when there is no variables available to me.
Question
To simplify my question - is there a way how I can do such a thing in ember js? Simple as
// have objects stored in controller
var obj = [{title:'Tab1'}, {title:'Tab2'}, {title:'Tab3'}];
// loop via them in the DOM
obj.forEach(function(tab) {
// do this kind of comparison
if( tab.title == currentTab() ) {
// do something here
}
});
If that is not possible, then what would be the other way to achieve similar functionality?
You can write a handlerbar helper to do this
{{activeTab tab}}
Handlebars.registerHelper('activeTab', function(tab) {
})
See a question about the same issue
Active Tab
Or look at existing helpers to write your own
Bind Helper
Template Helper
I think the best way for me to demonstrate this is with a heavily commented JSFiddle that I've put together for you: http://jsfiddle.net/PbLnm/
Please ask any questions below if you're not sure about anything.
The main part which determines when to add the active class is in the computed property:
// Determine if the object we have for this view is the same as the activeTab's object. If it is the same, then this view is the current active tab.
active: function() {
return Boolean(this.get('parentView.activeTab') == this.get('tab'));
}.property('parentView.activeTab')

khtml library tutorials/guides?

I'm trying to use the khtml library, basically just the DOM html implementation from there, but I even failed to create a basic HTMLDocument from a file using load(), and when I tried to create a HTMLDOcument by mutating it via appendChild I get DOMException with errorcode == 8 (NOT FOUND).
Can anyone please point me to some sample code which uses khtml's dom model without obtaining the document from the GUI components?
Ok, I see what the problem was.
First, if you're using a local html file, your uri needs to be absolute when you call DOM::HTMLDocumemt::load(const DOM::DOMString&).
Secondly, you need to create a DOM document, but it's read-only by default after creation.
So, before you actually call load(), you need to make it editable via
DOM::Document::setDesignMode(bool designOn).
That fixes it.
If I may recommend, WebKit is far superior to khtml now, even konqueror will be using webkit by default next release.
Check QtWebkit.