<?xml version="1.0" encoding="utf-8"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
    ns="http://jelix.org/ns/dao/1.0"
    datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
    >

   <start>
      <element name="dao">
         <ref name="datasources" />
         <ref name="record" />
         <optional><ref name="factory" /></optional>
      </element>
   </start>


   <!-- section datasources -->

   <define name="datasources">
      <element name="datasources">
         <element name="primarytable">
            <ref name="table.content" />
         </element>
         <zeroOrMore>
            <element name="foreigntable">
               <ref name="table.content" />
               <ref name="foreigntable.content" />
            </element>
         </zeroOrMore>
         <zeroOrMore>
            <element name="optionalforeigntable">
               <ref name="table.content" />
               <ref name="foreigntable.content" />
            </element>
         </zeroOrMore>
      </element>
   </define>

   <define name="table.content">
      <attribute name="name" />
      <optional><attribute name="realname" /></optional>
      <attribute name="primarykey" />
   </define>

   <define name="foreigntable.content">
      <attribute name="onforeignkey" />
   </define>



   <!-- section record -->
   <define name="record">
      <element name="record">
         <oneOrMore>
            <element name="property">
               <attribute name="name" />
               <attribute name="datatype" />
               <optional><attribute name="fieldname" /></optional>
               <optional><attribute name="table" /></optional>
               <optional><attribute name="required"><data type="boolean" /></attribute></optional>
               <optional><attribute name="minlength"><data type="int" /></attribute></optional>
               <optional><attribute name="maxlength"><data type="int" /></attribute></optional>
               <optional><attribute name="regexp" /></optional>
               <optional><attribute name="sequence" /></optional>
               <optional><attribute name="updatepattern" /></optional>
               <optional><attribute name="insertpattern" /></optional>
               <optional><attribute name="selectpattern" /></optional>
               <optional><attribute name="default" /></optional>
               <optional><attribute name="autoincrement">
                  <choice><value>true</value><value>false</value></choice>
               </attribute></optional>
            </element>
         </oneOrMore>
      </element>
   </define>

   <!-- section factory -->

   <define name="factory">
      <element name="factory">
         <optional><attribute name="events" /></optional>
         <oneOrMore>
            <ref name="method" />
         </oneOrMore>
      </element>
   </define>

   <define name="method">
      <choice>
         <element name="method">
            <attribute name="type"><value>php</value></attribute>
            <ref name="method.common" />
            <element name="body"> <text /> </element>
         </element>

         <element name="method">
            <attribute name="type"><value>sql</value></attribute>
            <ref name="method.common" />
            <attribute name="call" />
         </element>

         <element name="method">
            <attribute name="type"><value>delete</value></attribute>
            <ref name="method.common" />
            <ref name="method.events" />
            <ref name="method.conditions"/>
         </element>

         <element name="method">
             <attribute name="type"><value>count</value></attribute>
             <optional>
                 <attribute name="distinct" />
             </optional>
             <ref name="method.common" />
             <ref name="method.conditions"/>
         </element>

         <element name="method">
            <attribute name="type"><value>update</value></attribute>
            <ref name="method.common" />
            <ref name="method.values" />
            <ref name="method.events" />
            <ref name="method.conditions" />
         </element>

         <element name="method">
            <optional>
               <attribute name="type">
                  <choice>
                     <value>select</value>
                     <value>selectfirst</value>
                  </choice>
               </attribute>
            </optional>
            <optional>
               <attribute name="distinct">
                  <choice>
                     <value>true</value>
                     <value>false</value>
                  </choice>
                </attribute>
            </optional>
            <optional>
                <attribute name="groupby" />
            </optional>
            <ref name="method.common" />
            <ref name="method.conditions" />
            <ref name="method.orders" />
            <ref name="method.limit" />
         </element>
      </choice>
   </define>

   <define name="method.common">
      <attribute name="name" />
      <zeroOrMore>
         <element name="parameter">
            <attribute name="name" />
            <optional><attribute name="default" /></optional>
            <empty/>
         </element>
      </zeroOrMore>
   </define>

   <define name="method.events">
       <optional>
           <attribute name="eventbefore">
               <choice>
                  <value>true</value>
                  <value>false</value>
              </choice>
           </attribute>
       </optional>
       <optional>
           <attribute name="eventafter">
               <choice>
                   <value>true</value>
                   <value>false</value>
               </choice>
           </attribute>
       </optional>
   </define>

   <define name="method.conditions">
      <element name="conditions">
         <optional>
             <attribute name="logic">
                <choice>
                   <value>and</value>
                   <value>or</value>
                   <value>AND</value>
                   <value>OR</value>
                </choice>
             </attribute>
          </optional>
         <oneOrMore>
            <choice>
               <element name="eq"><ref name="method.condition.attr" /></element>
               <element name="neq"><ref name="method.condition.attr" /></element>
               <element name="lt"><ref name="method.condition.attr" /></element>
               <element name="gt"><ref name="method.condition.attr" /></element>
               <element name="lteq"><ref name="method.condition.attr" /></element>
               <element name="gteq"><ref name="method.condition.attr" /></element>
               <element name="like"><ref name="method.condition.attr" /></element>
               <element name="notlike"><ref name="method.condition.attr" /></element>
               <element name="isnull"><ref name="method.condition.attr.null" /></element>
               <element name="isnotnull"><ref name="method.condition.attr.null" /></element>
               <element name="in"><ref name="method.condition.attr" /></element>
               <element name="notin"><ref name="method.condition.attr" /></element>
               <element name="binary_op"><ref name="method.condition.attr.binaryop" /></element>

               <ref name="method.conditions" />
            </choice>
         </oneOrMore>
      </element>
   </define>

   <define name="method.condition.attr">
      <attribute name="property" />
      <choice>
         <attribute name="value" />
         <attribute name="expr" />
      </choice>
      <empty />
   </define>

   <define name="method.condition.attr.null">
      <attribute name="property" />
      <empty />
   </define>

   <define name="method.condition.attr.binaryop">
       <attribute name="property" />
       <choice>
           <attribute name="value" />
           <attribute name="expr" />
       </choice>
       <attribute name="operator" />
       <optional><attribute name="driver" /></optional>
       <empty />
   </define>

   <define name="method.values">
      <optional>
         <element name="values">
            <oneOrMore>
               <element name="value">
                  <attribute name="property" />
                  <choice>
                     <attribute name="value" />
                     <attribute name="expr" />
                  </choice>
                  <empty />
               </element>
            </oneOrMore>
         </element>
      </optional>
   </define>

   <define name="method.orders">
      <optional>
         <element name="order">
            <oneOrMore>
               <element name="orderitem">
                  <attribute name="property" />
                  <optional>
                     <attribute name="way" />
                  </optional>
                  <empty/>
               </element>
            </oneOrMore>
         </element>
      </optional>
   </define>

   <define name="method.limit">
      <optional>
         <element name="limit">
            <attribute name="offset" />
            <attribute name="count" />
            <empty />
         </element>
      </optional>
   </define>

   <!-- divers -->

   <define name="any">
      <element>
         <anyName/>
         <zeroOrMore>
            <choice>
               <attribute>
                  <anyName/>
               </attribute>
               <text/>
               <ref name="any"/>
            </choice>
         </zeroOrMore>
      </element>
   </define>

</grammar>