响应多个JSON渲染。 (Ruby / Rails) [英] responding with multiple JSON renders. (Ruby/Rails)
问题描述
这是一个相对简单的,我很确定它的只是语法。
我试图渲染多个对象作为一个控制器中的响应作为json。这样的东西:
def info
@allWebsites = Website.all
@allPages = all
@allElementTypes = ElementType.all
@allElementData = ElementData.all
respond_to do | format |
format.json {render:json => @allWebsites}
format.json {render:json => @allPages}
format.json {render:json => @allElementTypes}
format.json {render:json => ; @allElementData}
end
end
end
我只得到一个单一的json回来,它总是顶部。有没有办法以这种方式呈现多个对象?
还是应该创建一个由其他objects.to_json组成的新对象?
<你可以这样做:
格式。 json {
render:json => {
:websites => @allWebsites,
:pages => @allPages,
:element_types => @AllElementTypes,
:element_data => @AllElementData
}
}
如果你使用jquery,你将需要做类似的操作:
data = $ .parseJSON(xhr.responseText);
data.websites#=> @allWebsites您的控制器中的数据
data.pages#=>来自您的控制器的@allPages数据
等等。
编辑:
回答您的问题,您不一定要解析响应,这只是我通常做的。有很多函数可以立即为你做,例如:
$。getJSON('/ info',function (data){
var websites = data.websites,
pages = data.pages,
...
});
This is a relatively simple one and I'm pretty sure its just syntax.
Im trying to render multiple objects as json as a response in a controller. So something like this:
def info
@allWebsites = Website.all
@allPages = Page.all
@allElementTypes = ElementType.all
@allElementData = ElementData.all
respond_to do |format|
format.json{render :json => @allWebsites}
format.json{render :json =>@allPages}
format.json{render :json =>@allElementTypes}
format.json{render :json =>@allElementData}
end
end
end
Problem is I'm only getting a single json back and its always the top one. Is there any way to render multiple objects this way?
Or should I create a new object made up of other objects.to_json?
you could actually do it like so:
format.json {
render :json => {
:websites => @allWebsites,
:pages => @allPages,
:element_types => @AllElementTypes,
:element_data => @AllElementData
}
}
in case you use jquery you will need to do something like:
data = $.parseJSON( xhr.responseText );
data.websites #=> @allWebsites data from your controller
data.pages #=> @allPages data from your controller
and so on
EDIT:
answering your question, you don't necessarily have to parse the response, it's just what I usually do. There's a number of functions that do it for you right away, for example:
$.getJSON('/info', function(data) {
var websites = data.websites,
pages = data.pages,
...
});
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