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PODynamically Updating Form Field With jQuery
 

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  1. PODynamically Updating Form Field With jQuery
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    <p>I'm building a cost calculator that takes an integer from a text box, if it is within two certain figures a cost is then passed to a cost field on the form. I was going to use PHP but struggled getting an ajax call to work, here is what I've come up with so far in jQuery:</p> <pre><code>$("#message_wordcount").change(function() { var p; var service = $("#message_service").val(); var wc=parseInt($("#message_wordcount").val(), 10); if($(service=="Critique") { if (wc&lt;="1200") { var p=2.5; } else if (wc&gt;"1200" &amp;&amp; wc&lt;="2500") { var p=5; } else if (wc&gt;"2500" &amp;&amp; wc&lt;="4000") { var p=10; } else if (wc&gt;"4000" &amp;&amp; wc&lt;="6500") { var p=15; } else if (wc&gt;"6500" &amp;&amp; wc&lt;="8000") { var p=20; } else if (wc&gt;"8000" &amp;&amp; wc&lt;="12000") { var p=25; } else if (wc&gt;"12000" &amp;&amp; wc&lt;="16000") { var p=30; } else if (wc&gt;"16000" &amp;&amp; wc&lt;="20500") { var p=35; } else if (wc&gt;"20500" &amp;&amp; wc&lt;="22500") { var p=40; } else if (wc&gt;"22500" &amp;&amp; wc&lt;="25500") { var p=45; } else if (wc&gt;"25500" &amp;&amp; wc&lt;="27000") { var p=50; } else if (wc&gt;"27000" &amp;&amp; wc&lt;="29999") { var p=55; } else if (wc&gt;"29999" &amp;&amp; wc&lt;="33600") { var p=60; } else if (wc&gt;"33600" &amp;&amp; wc&lt;="36100") { var p=65; } else if (wc&gt;"36100" &amp;&amp; wc&lt;="38700") { var p=70; } else if (wc&gt;"38701" &amp;&amp; wc&lt;="40700") { var p=75; } else if (wc&gt;"40700" &amp;&amp; wc&lt;="42700") { var p=80; } else if (wc&gt;"42700" &amp;&amp; wc&lt;="45000") { var p=85; } else if (wc&gt;"45000" &amp;&amp; wc&lt;="48000") { var p=90; } else if (wc&gt;"48000" &amp;&amp; wc&lt;="49500") { var p=95; } else if (wc&gt;"49500" &amp;&amp; wc&lt;="52000") { var p=100; } else if (wc&gt;"52000" &amp;&amp; wc&lt;="54500") { var p=105; } else if (wc&gt;"54500" &amp;&amp; wc&lt;="57000") { var p=110; } else if (wc&gt;"57000" &amp;&amp; wc&lt;="59999") { var p=115; } else if (wc&gt;"59999" &amp;&amp; wc&lt;="63000") { var p=120; } else if (wc&gt;"63000" &amp;&amp; wc&lt;="68000") { var p=125; } else if (wc&gt;"68000" &amp;&amp; wc&lt;="72000") { var p=130; } else if (wc&gt;"72000" &amp;&amp; wc&lt;="76000") { var p=135; } else if (wc&gt;"76000" &amp;&amp; wc&lt;="79999") { var p=140; } else if (wc&gt;"79999" &amp;&amp; wc&lt;="85999") { var p=145; } else if (wc&gt;"85999" &amp;&amp; wc&lt;="92000") { var p=150; } else if (wc&gt;"92000" &amp;&amp; wc&lt;="99999") { var p=155; } else if (wc&gt;"99999" &amp;&amp; wc&lt;="105000") { var p=160; } else if (wc&gt;"105000" &amp;&amp; wc&lt;="110000") { var p=170; } else if (wc&gt;"110000" &amp;&amp; wc&lt;="115000") { var p=180; } else if (wc&gt;"115000" &amp;&amp; wc&lt;="120000") { var p=190; } else if (wc&gt;"120000" &amp;&amp; wc&lt;="125000") { var p=200; } else if (wc&gt;"125000" &amp;&amp; wc&lt;="130000") { var p=210; } else if (wc&gt;"130000" &amp;&amp; wc&lt;="135000") { var p=220; } else if (wc&gt;"135000" &amp;&amp; wc&lt;="139999") { var p=230; } else if (wc&gt;"139999" &amp;&amp; wc&lt;="150000") { var p=240; } else if (wc&gt;"150000" &amp;&amp; wc&lt;="159999") { var p=245; } else if (wc&gt;"159999" &amp;&amp; wc&lt;="170000") { var p=250; } else if (wc&gt;"170000" &amp;&amp; wc&lt;="180000") { var p=260; } else if (wc&gt;"180000" &amp;&amp; wc&lt;="185000") { var p=270; } else if (wc&gt;"185000" &amp;&amp; wc&lt;="192000") { var p=280; } else if (wc&gt;"192000" &amp;&amp; wc&lt;="199999") { var p=290; } else if (wc&gt;"199999" &amp;&amp; wc&lt;="250000") { var p=300; } $("#message_cost").val(p); } }); </code></pre> <p>And here is my markup:</p> <pre><code>&lt;form action="&lt;?php the_permalink(); ?&gt;" method="post"&gt; &lt;p&gt;&lt;label for="name"&gt;Name: &lt;span&gt;*&lt;/span&gt; &lt;br&gt;&lt;input type="text" name="message_name" value="&lt;?php echo esc_attr($_POST['message_name']); ?&gt;"&gt;&lt;/label&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_email"&gt;Email: &lt;span&gt;*&lt;/span&gt; &lt;br&gt;&lt;input type="text" name="message_email" value="&lt;?php echo esc_attr($_POST['message_email']); ?&gt;"&gt;&lt;/label&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_service"&gt;Service: &lt;span&gt;*&lt;/span&gt;&lt;br&gt;&lt;select name="message_service"&gt;&lt;option value="&lt;?php echo esc_attr($_POST['message_service']); ?&gt;Critique"&gt;Critique&lt;/option&gt; &lt;option value="&lt;?php echo esc_attr($_POST['message_service']); ?&gt;Standard Edit"&gt;Standard Edit&lt;/option&gt; &lt;option value="&lt;?php echo esc_attr($_POST['message_service']); ?&gt;Comprehensive"&gt;Comprehensive&lt;/option&gt; &lt;/select&gt;&lt;/label&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_wordcount"&gt;Word Count: &lt;span&gt;*&lt;/span&gt; &lt;br&gt;&lt;input id="message_wordcount" type="text" name="message_wordcount" value="&lt;?php echo esc_attr($_POST['message_wordcount']); ?&gt;"&gt;&lt;/label&gt; &amp;nbsp &lt;a href="#" id="cC"&gt;Calculate Cost&lt;/a&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_cost"&gt;Total Cost: &lt;br&gt;&lt;input id="message_cost" type="text" name="message_cost" value="&lt;?php echo esc_attr($_POST['message_cost']); ?&gt;" readonly&gt;&lt;/label&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_text"&gt;Message: &lt;span&gt;*&lt;/span&gt; &lt;br&gt;&lt;textarea type="text" name="message_text"&gt;&lt;?php echo esc_textarea($_POST['message_text']); ?&gt;&lt;/textarea&gt;&lt;/label&gt;&lt;/p&gt; &lt;p&gt;&lt;label for="message_human"&gt;Human Verification: &lt;span&gt;*&lt;/span&gt; &lt;br&gt;&lt;input type="text" style="width: 60px;" name="message_human"&gt; + 3 = 5&lt;/label&gt;&lt;/p&gt; &lt;input type="hidden" name="submitted" value="1"&gt; &lt;p&gt;&lt;input type="submit"&gt;&lt;/p&gt; &lt;/form&gt; </code></pre> <p>However nothing seems to happen when the wordcount box is changed - I could get the function to return the price prior to integrating it with the form.</p> <p>Any help would be appreciated, thanks</p>
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    1. USiKettles
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    1. COOnce declared `var p`. why are you declaring it every-time?
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      1. PODynamically Updating Form Field With jQuery
      1. USDhaval Marthak
    2. COIf you declared `var p` right at the beginning, why are you re-declaring it inside every condition? Just `p = something` would be enough. But that's not the issue here.
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      1. PODynamically Updating Form Field With jQuery
      1. USmelancia
    3. COyou need to remove the `$(` in `if($(service=="Critique")` this is invalid syntax
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      1. PODynamically Updating Form Field With jQuery
      1. USLiam
 

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