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POHow to not iterate the whole page in Lift
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  1. POHow to not iterate the whole page in Lift
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    copied!<p>How can I bind some variables in Lift, so that I can use them outside the "iterating" part of the template.</p> <p>This is very confusing to me, so I'll pose the question with the help of an example.</p> <p>Let say I have some snippet method that can provide a list of users, and a total count of these users:</p> <pre><code>def users(in: NodeSeq) :NodeSeq={ val (entries:List[User], total:Int) = // read entries and total from somewhere // expensive operation entries.flatMap(user =&gt; Helpers.bind("patient", in, "userID" -&gt; user.userID, "userName" -&gt; user.userName)) </code></pre> <p>now I want to use it within the template: </p> <pre><code>... &lt;lift:Search.users&gt; &lt;tr&gt; &lt;td&gt;&lt;user:userID/&gt;&lt;/td&gt; &lt;td&gt;&lt;user:userName/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/lift:Search.users&gt; ... </code></pre> <p>However, I also want to output the <strong>total</strong> count of users - but somewhere else on the page:</p> <pre><code>&lt;b&gt;Total users: &lt;user:total&gt;&lt;/b&gt; &lt;--- ????? ... &lt;lift:Search.users&gt; &lt;tr&gt; &lt;td&gt;&lt;user:userID/&gt;&lt;/td&gt; &lt;td&gt;&lt;user:userName/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/lift:Search.users&gt; ... </code></pre> <p>as you can imagine this does not work, because it is outside the <strong>Search</strong> snippet tag. Furthermore - if I try to <em>bind</em> the total to <em>users</em> - it unbinds all my previous binds for the user!</p> <p>I tried putting the lift tags around the whole document, but that just makes the whole page repeat itself!!</p> <pre><code>&lt;body&gt; &lt;lift:Search.users&gt; &lt;---- clones the whole page! &lt;b&gt;Total users: &lt;user:total&gt;&lt;/b&gt; &lt;table&gt; ... &lt;tr&gt; &lt;td&gt;&lt;user:userID/&gt;&lt;/td&gt; &lt;td&gt;&lt;user:userName/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/lift:Search.users&gt; &lt;/body&gt; </code></pre> <p>I am new to Lift - so I must be missing something really obvious.</p>
 

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