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8523afa930
Updated templating documentation to mention "working directory" rather than "executable directory". Added Warning log when a template is not found.
25 lines
1.5 KiB
Markdown
25 lines
1.5 KiB
Markdown
Templating is when you return an html page with custom data. You can probably tell why that's useful.<br><br>
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Crow supports [mustache](http://mustache.github.io) for templates through its own implementation `crow::mustache`.<br><br>
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##Components of mustache
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There are 2 components of a mustache template implementation:
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- Page
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- Context
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###Page
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The HTML page (including the mustache tags). It is usually loaded into `crow::mustache::template_t`. It needs to be placed in the *templates directory* which should be directly inside the current working directory of the crow executable.<br><br>
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For more information on how to formulate a template, see [this mustache manual](http://mustache.github.io/mustache.5.html).
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###Context
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A JSON object containing the tags as keys and their values. `crow::mustache::context` is actually a [crow::json::wvalue](../json#wvalue).
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##Returning a template
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To return a mustache template, you need to load a page using `#!cpp auto page = crow::mustache::load("path/to/template.html");`, keep in mind that the path is relative to the templates directory.<br>
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You also need to set up the context by using `#!cpp crow::mustache::context ctx;`. Then you need to assign the keys and values, this can be done the same way you assign values to a json write value (`ctx["key"] = value;`).<br>
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With your context and page ready, just `#!cpp return page.render(ctx);`. This will use the context data to return a filled template.<br>
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Alternatively you could just render the page without a context using `#!cpp return page.render();`.
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