Error Handling - Adding "catch all" logic for &quo

[metroscript]

Good afternoon to all,

Currently, we have some error handling in our logic which catches some type of errors, but not all. Here is an example of our error handling on one of our xml pages:

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<catch event="connection.disconnect">
	<if cond="initial_recording == undefined">
		<% if ( strFrom = "pause" ) then %>
			<submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
		<% else %>
			<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
		<% end if %>
	<elseif cond="initial_recording$.size < 24000 || initial_recording$.size == ''"/>
		<% if ( strFrom = "pause" ) then %>
			<submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
		<% else %>
			<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
		<% end if %>
	<else/>
		<submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
	</if>
</catch>

<catch event="error.badfetch" count="1">
	<if cond="initial_recording$.size == 0 || initial_recording$.size == '' || initial_recording == undefined">
		<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
	<else/>
		<submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
	</if>
</catch>
		
<catch event="error.badfetch" count="2">
	<var name="filename" expr="foldernumber + '_phone_file_' + filenumber + '.vox'"/>
	<var name="recording" expr="initial_recording"/>
	<submit next="http://metroscript.plumgroup.com/saverecording.php" namelist="filename recording" method="post" enctype="multipart/form-data"/>
</catch>

<catch event="nomatch noinput">
	<submit next="process_record_hangup.xml" method="post"/>
</catch>

What I am looking to do is add logic which would catch and handle any other type of errors. So, this is what I came up with. My question is, does my logic make sense and is this how you would accomplish this:

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<error>
	<if cond="_event =='connection.disconnect'">
		<if cond="initial_recording == undefined">
			<% if ( strFrom = "pause" ) then %>
				<submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
			<% else %>
				<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
			<% end if %>
		<elseif cond="initial_recording$.size < 24000 || initial_recording$.size == ''"/>
			<% if ( strFrom = "pause" ) then %>
				<submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
			<% else %>
				<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
			<% end if %>
		<else/>
			<submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
		</if>
	<elseif cond="_event =='error.badfetch' " count="1"/>
		<if cond="initial_recording$.size == 0 || initial_recording$.size == '' || initial_recording == undefined">
			<submit next="process_record_hangup.xml?next=zerolength" method="post"/>
		<else/>
			<submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
		</if>
	<elseif cond="_event =='error.badfetch' " count="2"/>
		<var name="filename" expr="foldernumber + '_phone_file_' + filenumber + '.vox'"/>
		<var name="recording" expr="initial_recording"/>
		<submit next="http://metroscript.plumgroup.com/saverecording.php" namelist="filename recording" method="post" enctype="multipart/form-data"/>
	<elseif cond="_event =='nomatch noinput' "/>
		<submit next="process_record_hangup.xml" method="post"/>
	<else/>
		<submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
	</if>
</error>

Thanks,

Mike C.

[support]

Hi Mike,

Looking through your IVR code:

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<error>
   <if cond="_event =='connection.disconnect'">
      <if cond="initial_recording == undefined">
         <% if ( strFrom = "pause" ) then %>
            <submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
         <% else %>
            <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
         <% end if %>
      <elseif cond="initial_recording$.size < 24000 || initial_recording$.size == ''"/>
         <% if ( strFrom = "pause" ) then %>
            <submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
         <% else %>
            <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
         <% end if %>
      <else/>
         <submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
      </if>
   <elseif cond="_event =='error.badfetch' " count="1"/>
      <if cond="initial_recording$.size == 0 || initial_recording$.size == '' || initial_recording == undefined">
         <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
      <else/>
         <submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
      </if>
   <elseif cond="_event =='error.badfetch' " count="2"/>
      <var name="filename" expr="foldernumber + '_phone_file_' + filenumber + '.vox'"/>
      <var name="recording" expr="initial_recording"/>
      <submit next="http://metroscript.plumgroup.com/saverecording.php" namelist="filename recording" method="post" enctype="multipart/form-data"/>
   <elseif cond="_event =='nomatch noinput' "/>
      <submit next="process_record_hangup.xml" method="post"/>
   <else/>
      <submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
   </if>
</error> 

this probably wouldn't work due to these lines:

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<elseif cond="_event =='error.badfetch' " count="1"/> 

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<elseif cond="_event =='error.badfetch' " count="2"/> 

since there is no "count" attribute for the IVR <elseif> tag.

We recommend that you just keep your old IVR code and just add an <error> handler to your IVR code to handle any other types of IVR errors:

Code: Select all

<catch event="connection.disconnect">
   <if cond="initial_recording == undefined">
      <% if ( strFrom = "pause" ) then %>
         <submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
      <% else %>
         <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
      <% end if %>
   <elseif cond="initial_recording$.size < 24000 || initial_recording$.size == ''"/>
      <% if ( strFrom = "pause" ) then %>
         <submit next="process_combine_voxs.xml?next=disconnect" method="post"/>
      <% else %>
         <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
      <% end if %>
   <else/>
      <submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
   </if>
</catch>

<catch event="error.badfetch" count="1">
   <if cond="initial_recording$.size == 0 || initial_recording$.size == '' || initial_recording == undefined">
      <submit next="process_record_hangup.xml?next=zerolength" method="post"/>
   <else/>
      <submit next="process_record_savevox.xml?next=disconnect" method="post" namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/>
   </if>
</catch>
      
<catch event="error.badfetch" count="2">
   <var name="filename" expr="foldernumber + '_phone_file_' + filenumber + '.vox'"/>
   <var name="recording" expr="initial_recording"/>
   <submit next="http://metroscript.plumgroup.com/saverecording.php" namelist="filename recording" method="post" enctype="multipart/form-data"/>
</catch>

<catch event="nomatch noinput">
   <submit next="process_record_hangup.xml" method="post"/>
</catch> 

<error>
   <submit next="process_record_savevox.xml?next=disconnect" method="post namelist="initial_recording" fetchtimeout="120s" enctype="multipart/form-data"/> 
</error>

Regards,
Plum Support

[metroscript]

Thanks for the quick reply. So, if I understand correctly, it will still go through my original catches first with this solution?

[support]

Hi,

Yes, that's correct for the IVR application. It would go through all of your original catches first and if there's a match, then it would use that <catch> event. If there isn't a match, it would just go to your <error> handler.

Regards,
Plum Support

[metroscript]

Sounds good. Thx!

[metroscript]

One last question. I have a page which contains multiple <menu> tags. Within each of those <menu> tags, I have a <disconnect> tag. I also have a <disconnect> tag at the top of the page in case the user doesn't get to any of the <menus>. So, my question is this. Should I have a universal <error> handler after each of my <disconnect> tags? Will that cause a problem?

Thanks!

Mike C.

[support]

Hi Mike,

As long as the error handler that you specify in each of your IVR <menu> tags is the same, you can just specify the error handler once at the vxml-level or once at the application-level.

To answer your second question, having the same <error> handler after each of your IVR <disconnect> tags wouldn't cause an IVR problem.

Regards,
Plum Support

[metroscript]

The problem is that each menu has a unique <disconnect> handler, which means that each general <error> handler after each <disconnect> would be unique. Would that be an issue?

[support]

Hi Mike,

Yes, this would be an IVR issue.

If each general <error> handler is unique, then you should add an <error> handler after each <disconnect> in your IVR <menu> tags.

Regards,
Plum Support