RELEASE_2_1_13/src/blocks/forms/samples/forms/calculatedfields.xml

<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- form used to illustrate calculated fields. -->
<fd:form xmlns:fd="http://apache.org/cocoon/forms/1.0#definition" xmlns:i18n="http://apache.org/cocoon/i18n/2.1">
  
  <fd:widgets>
    <fd:repeater id="articles" orderable="true" initial-size="1">
      <fd:widgets>
        <fd:field id="description">
          <fd:label>Description</fd:label>
          <fd:datatype base="string"/>
        </fd:field>
        <fd:field id="items" required="true">
          <fd:label>Items</fd:label>
          <fd:datatype base="integer"/>
        </fd:field>
        <fd:field id="price" required="true">
          <fd:label>Price</fd:label>
          <fd:datatype base="double"/>
        </fd:field>
        <fd:calculatedfield id="subtotal" required="true" state="output">
          <fd:label>Sub total</fd:label>
          <fd:datatype base="double">
            <fd:convertor type="formatting" variant="currency"/>
          </fd:datatype>
          <fd:value eval="items * price"/>
        </fd:calculatedfield>
        <fd:calculatedfield id="vat" required="true" state="output">
          <fd:label>VAT</fd:label>
          <fd:datatype base="double">
            <fd:convertor type="formatting" variant="currency"/>
          </fd:datatype>
          <fd:value eval="Round((subtotal / 100.000000) * 20,2)"/>
        </fd:calculatedfield>
        <fd:calculatedfield id="total" required="true" state="output">
          <fd:label>Total</fd:label>
          <fd:datatype base="double">
            <fd:convertor type="formatting" variant="currency"/>
          </fd:datatype>
          <fd:value eval="subtotal + vat"/>
        </fd:calculatedfield>
        <fd:booleanfield id="select">
          <fd:label>Select</fd:label>
        </fd:booleanfield>
      </fd:widgets>
    </fd:repeater>
    
    <fd:repeater-action id="addarticle" command="add-row" repeater="articles">
      <fd:label>Add article</fd:label>
    </fd:repeater-action>
    
    <fd:repeater-action id="removearticles" command="delete-rows" repeater="articles" select="select">
      <fd:label>Remove selected articles</fd:label>
    </fd:repeater-action>
    
    <fd:calculatedfield id="totalitems" state="output" required="true">
      <fd:label>Total items</fd:label>
      <fd:datatype base="integer"/>
      <fd:value eval="Sum({/articles/./items})"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="totalitemscost" state="output" required="true">
      <fd:label>Total cost</fd:label>
      <fd:datatype base="double">
        <fd:convertor type="formatting" variant="currency"/>
      </fd:datatype>
      <fd:value eval="Sum({/articles/./subtotal})"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="totalvat" state="output" required="true">
      <fd:label>Total VAT</fd:label>
      <fd:datatype base="double">
        <fd:convertor type="formatting" variant="currency"/>
      </fd:datatype>
      <fd:value eval="Sum({/articles/./vat})"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="totalcost" state="output" required="true">
      <fd:label>Total Cost</fd:label>
      <fd:datatype base="double">
        <fd:convertor type="formatting" variant="currency"/>
      </fd:datatype>
      <fd:value eval="Sum({/articles/./total})"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="boxes" state="output" required="true">
      <fd:label>Boxes</fd:label>
      <fd:datatype base="integer"/>
      <fd:value type="repeatedformula" repeat-on="/articles/./items" eval="formulaResult + Ceiling(Round(formulaCurrent,4) / 10)" initial-result="0"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="freeboxes" state="output">
      <fd:label>Free boxes</fd:label>
      <fd:datatype base="integer"/>
      <fd:value type="javascript" triggers="boxes"> 
        var acboxes = form.lookupWidget('boxes').getValue(); 
        var freeboxes = 0; 
        if (acboxes > 100) { 
        	freeboxes = 30; 
        } else if (acboxes > 50) { 
        	freeboxes = 15; 
       	} else if (acboxes > 10) { 
        	freeboxes = 2; 
        } 
        return freeboxes;
      </fd:value>
    </fd:calculatedfield>
    
    <fd:field id="courier" required="true">
      <fd:label>Courier</fd:label>
      <fd:datatype base="double"/>
      <fd:selection-list>
        <fd:item value="5"><fd:label>Normal mail - 5 per box</fd:label></fd:item>
        <fd:item value="10"><fd:label>Express/air mail - 10 per box</fd:label></fd:item>
        <fd:item value="15"><fd:label>12 hours delivery - 15 per box</fd:label></fd:item>
        <fd:item value="25"><fd:label>12 hours delivery with refund - 25 per box</fd:label></fd:item>
      </fd:selection-list>
    </fd:field>
    
    <fd:calculatedfield id="couriercost" state="output">
      <fd:label>Courier cost</fd:label>
      <fd:datatype base="double">
        <fd:convertor type="formatting" variant="currency"/>
      </fd:datatype>
      <fd:value eval="(boxes - freeboxes) * courier"/>
    </fd:calculatedfield>
    
    <fd:calculatedfield id="grandtotal" state="output">
      <fd:label>Grand total</fd:label>
      <fd:datatype base="double">
        <fd:convertor type="formatting" variant="currency"/>
      </fd:datatype>
      <fd:value eval="totalcost + couriercost"/>
    </fd:calculatedfield>
    
  </fd:widgets>
</fd:form>