assign VoiceXML element - Zvon reference

ZVON > References > VoiceXML Reference

Element:	assign
Attributes:	\| expr \| name \|
Parents:	\| block \| catch \| error \| filled \| help \| if \| noinput \| nomatch \|
Description:	Go to Standard

Examples:

<form id="gather_pager_message">
     <object name="message" classid="builtin://keypad_text_input">
          <prompt> Enter your message by pressing your keypad once per letter. For a space, enter star. To end the message, press the pound sign. </prompt>
     </object>
     <block>
          <assign name="document.pager_message" expr="message.text"/>
          <goto next="#confirm_pager_message"/>
     </block>
</form>

<field name="ticket_num" type="digits">
     <prompt> Read the 12 digit number from your ticket. </prompt>
     <help>The 12 digit number is to the lower left.</help>
     <filled>
          <if mcond="ticket_num.length != 12">
               <prompt> Sorry, I didn't hear exactly 12 digits. </prompt>
               <assign name="ticket_num" expr="undefined"/>
          </if>
     </filled>
</field>

<vxml version="1.0">
     <form id="billing_adjustment">
          <var name="account_number"/>
          <var name="home_phone"/>
          <subdialog name="accountinfo" src="acct_info.vxml#basic">
               <filled>
                    <assign name="account_number" expr="accountinfo.acctnum"/>
                    <assign name="home_phone" expr="accountinfo.acctphone"/>
               </filled>
          </subdialog>
          <field name="adjustment_amount" type="currency">
               <prompt> What is the value of your account adjustment? </prompt>
               <filled>
                    <submit next="/cgi-bin/updateaccount"/>
               </filled>
          </field>
     </form>
</vxml>

<form id="get_from_and_to_cities">
     <grammar src="http://www.directions.example/grammars/from_to.gram"/>
     <block> Welcome to the Driving Directions By Phone. </block>
     <initial name="bypass_init">
          <prompt> Where do you want to drive from and to? </prompt>
          <nomatch count="1"> Please say something like "from Atlanta Georgia to Toledo Ohio". </nomatch>
          <nomatch count="2"> I’m sorry, I still don’t understand. I’ll ask you for information one piece at a time.
               <assign name="bypass_init" expr="true"/>
               <reprompt/>
          </nomatch>
     </initial>
     <field name="from_city">
          <grammar src="http://www.directions.example/grammars/city.gram"/>
          <prompt>From which city are you leaving?</prompt> … etc. …
     </field> … etc. …
</form>

<form name="transfer">
     <var name="mydur" expr="0"/>
     <block>
          <audio src="chopin12.wav"/>
     </block>
     <transfer name="mycall" dest="phone://18005551234" connecttimeout="30s" bridge="true">
          <filled>
               <assign name="mydur" expr="mycall$.duration"/>
               <if cond="mycall == 'busy'">
                    <prompt> Sorry, our customer support team is busy serving other customers. Please try again later. </prompt>
                    <elseif cond="mycall == 'noanswer'"/>
                    <prompt> Sorry, our customer support team's normal hours are 9 am to 7 pm Monday through Saturday. </prompt>
               </if>
          </filled>
     </transfer>
     <block>
          <submit namelist="mycall mydur" next="/cgi-bin/report"/>
     </block>
</form>

<form id="getssn">
     <var name="firstname"/>
     <var name="lastname"/>
     <field name="ssn">
          <grammar src="http://grammarlib/ssn.gram" type="application/x-jsgf"/>
          <prompt> Please say social security number. </prompt>
          <filled>
               <if cond="validssn(firstname,lastname,ssn)">
                    <assign name="status" expr="true"/>
                    <return namelist="status ssn"/>
                    <else/>
                    <assign name="status" expr="false"/>
                    <return namelist="status"/>
               </if>
          </filled>
     </field>
</form>

<if cond="total > 1000">
     <prompt>This is way too much to spend.</prompt>
     <throw event="com.xyzcorp.acct.toomuchspent"/>
</if>
<if cond="amount < 29.95">
     <assign name="x" expr="amount"/>
     <else/>
     <assign name="x" expr="29.95"/>
</if>
<if cond="flavor == 'vanilla'">
     <assign name="flavor_code" expr="'v'"/>
     <elseif cond="flavor == 'chocolate'"/>
     <assign name="flavor_code" expr="'h'"/>
     <elseif cond="flavor == 'strawberry'"/>
     <assign name="flavor_code" expr="'b'"/>
     <else/>
     <assign name="flavor_code" expr="'?'"/>
</if>

<vxml version="1.0">
     <form id="getcredit">
          <var name="status" expr="'no_result'"/>
          <var name="username"/>
          <field name="creditcardnum">
               <prompt> What is your credit card number? </prompt>
               <help> I am trying to collect your credit card information.
                    <reprompt/>
               </help>
               <nomatch>
                    <return namelist="status"/>
               </nomatch>
               <grammar/>
          </field>
          <field name="expirydate" type="date">
               <prompt> What is the expiry date of this card? </prompt>
               <help> I am trying to collect the expiry date of the credit card number you provided.
                    <reprompt/>
               </help>
               <nomatch>
                    <return namelist="status"/>
               </nomatch>
          </field>
          <block>
               <assign name="status" expr="'result'"/>
               <return namelist="status creditcardnum expirydate"/>
          </block>
     </form>
</vxml>

<vxml version="1.0">
     <var name="username"/>
     <form id="buysoftware">
          <var name="ccn"/>
          <var name="exp"/>
          <grammar/>
          <initial name="start">
               <prompt> Please tell us the software product you wish to buy and the operating system on which it must run. </prompt>
               <noinput>
                    <assign name="start" expr="true"/>
               </noinput>
          </initial>
          <field name="product">
               <prompt> Which software product would you like to buy? </prompt>
          </field>
          <field mname="operatingsystem">
               <prompt> Which operating system does this software need to run on? </prompt>
          </field>
          <subdialog name="cc_results" src="http://somedomain.example/ccn.vxml">
               <filled>
                    <if cond="cc_results.status=='no_result'"> Sorry, your credit card information could not be Obtained. This order is cancelled.
                         <exit/>
                         <else/>
                         <assign name="ccn" expr="cc_results.creditcardnum"/>
                         <asssign name="exp" expr="cc_results.expirydate"/>
                    </if>
               </filled>
          </subdialog>
          <block> We will now process your order. Please hold.
               <submit namelist="username product operatingsystem ccn exp"/>
          </block>
     </form>
</vxml>

<form id="weather_info">
     <grammar src="cityandstate.gram" type="application/x-jsgf"/>
     <block>
          <prompt bargein="false"> Welcome to the weather information service.
               <audio src="http://www.online-ads.example/wis.wav"/>
          </prompt>
     </block>
     <initial name="start">
          <prompt> For what city and state would you like the weather? </prompt>
          <help> Please say the name of the city and state for which you you would like a weather report.</help>
          <noinput count="1">
               <reprompt/>
          </noinput>
          <noinput count="2">
               <reprompt/>
               <assign name="start" expr="true"/>
          </noinput>
     </initial>
     <field name="state">
          <prompt>What state?</prompt>
          <help>Please speak the state for which you want the weather.</help>
     </field>
     <field name="city">
          <prompt>Please say the city in
               <value expr="state"/> for which you want the weather.
          </prompt>
          <help>Please speak the city for which you want the weather.</help>
          <filled>
               <if cond="city == 'Los Angeles' && state == undefined">
                    <assign name="state" expr="'California'"/>
               </if>
          </filled>
     </field>
     <field name="go_ahead" type="boolean" modal="true">
          <prompt>Do you want to hear the weather for
               <value expr="city"/>,
               <value expr="state"/>?
          </prompt>
          <filled>
               <if cond="go_ahead">
                    <prompt bargein="false">
                         <audio src="http://www.online-ads.example/wis2.wav"/>
                    </prompt>
                    <submit next="/servlet/weather" namelist="city state"/>
               </if>
               <clear namelist="start city state go_ahead"/>
          </filled>
     </field>
</form>