FHIR Mapping Language (FML), published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/mapping-language-ig/ and changes regularly. See the Directory of published versions

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: TransformReference

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<StructureMap xmlns="http://hl7.org/fhir"
              resourceDefinition="http://hl7.org/fhir/StructureDefinition/StructureMap|0.1.0">
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureMap TransformReference</b></p><a name="TransformReference"> </a><a name="hcTransformReference"> </a><pre class="fml">
<span style="color: #cc00cc">/// <b>url</b> = </span><span style="color: blue">'http://hl7.org/fhir/uv/mapping-language/StructureMap/TransformReference'</span>
<span style="color: #cc00cc">/// <b>name</b> = </span><span style="color: blue">'TransformReference'</span>
<span style="color: #cc00cc">/// <b>status</b> = </span><span style="color: blue">'active'</span>
<span style="color: #cc00cc">/// <b>description</b> = </span><span style="color: blue">'Example demonstrating the reference transform to generate a resource reference'</span>

<b>uses</b><span style="color: navy"> &quot;</span><a href="http://hl7.org/fhir/6.0.0-ballot5/patient.html" title="Patient">http://hl7.org/fhir/StructureDefinition/Patient</a><span style="color: navy">&quot; </span><b>as </b><b>source</b>
<b>uses</b><span style="color: navy"> &quot;</span><a href="http://hl7.org/fhir/6.0.0-ballot5/bundle.html" title="Bundle">http://hl7.org/fhir/StructureDefinition/Bundle</a><span style="color: navy">&quot; </span><b>as </b><b>target</b>
<b>uses</b><span style="color: navy"> &quot;</span><a href="http://hl7.org/fhir/6.0.0-ballot5/encounter.html" title="Encounter">http://hl7.org/fhir/StructureDefinition/Encounter</a><span style="color: navy">&quot; </span><b>as </b><b>produced</b>

<b>group </b>TransformReference<span style="color: navy">(</span><b>source</b> <span style="color: maroon">src</span><span style="color: navy"> : </span>Patient, <b>target</b> <span style="color: maroon">tgt</span><span style="color: navy"> : </span>Bundle<span style="color: navy">)</span><span style="color: navy"> {
</span>  <span style="color: navy">// </span><span style="color: green">add in the patient to the bundle as is</span>
  src<span style="color: navy"><b> -&gt; </b></span> tgt.entry<b> as </b><span style="color: maroon">patEntry</span><span style="color: navy">, </span> patEntry.resource = <span style="color: maroon">src</span> <i>&quot;patEntry&quot;</i><span style="color: navy">;</span>
  src<span style="color: navy"><b> -&gt; </b></span> <b>create</b><span style="color: navy">(</span><span style="color: blue">'Encounter'</span><span style="color: navy">)</span><b> as </b><span style="color: maroon">enc</span><span style="color: navy">, </span> tgt.entry<b> as </b><span style="color: maroon">entry</span><b> then</b><span style="color: navy"> {
</span>    src.id<b> as </b><span style="color: maroon">v</span><span style="color: navy"><b> -&gt; </b></span> enc.subject<b> as </b><span style="color: maroon">s</span><span style="color: navy">, </span> s.reference = <b>reference</b><span style="color: navy">(</span><span style="color: maroon">src</span><span style="color: navy">)</span> <i>&quot;r2&quot;</i><span style="color: navy">;</span>
    <span style="color: navy">// </span><span style="color: green">Note the encounter entry is added after it has been populated</span>
    src<span style="color: navy"><b> -&gt; </b></span>entry.resource = <span style="color: maroon">enc</span> <i>&quot;encounterEntry&quot;</i><span style="color: navy">;</span>
  <span style="color: navy">}</span> <i>&quot;encEntry&quot;</i><span style="color: navy">;</span>
<span style="color: navy">}

</span></pre></div>
  </text>
  <url
       value="http://hl7.org/fhir/uv/mapping-language/StructureMap/TransformReference"/>
  <name value="TransformReference"/>
  <status value="active"/>
  <description
               value="Example demonstrating the reference transform to generate a resource reference"/>
  <structure>
    <url value="http://hl7.org/fhir/StructureDefinition/Patient"/>
    <mode value="source"/>
  </structure>
  <structure>
    <url value="http://hl7.org/fhir/StructureDefinition/Bundle"/>
    <mode value="target"/>
  </structure>
  <structure>
    <url value="http://hl7.org/fhir/StructureDefinition/Encounter"/>
    <mode value="produced"/>
  </structure>
  <group>
    <name value="TransformReference"/>
    <input>
      <mode value="source"/>
      <name value="src"/>
      <type value="Patient"/>
    </input>
    <input>
      <mode value="target"/>
      <name value="tgt"/>
      <type value="Bundle"/>
    </input>
    <rule>
      <source>
        <context value="src"/>
      </source>
      <target>
        <context value="tgt"/>
        <element value="entry"/>
        <variable value="patEntry"/>
      </target>
      <target>
        <context value="patEntry"/>
        <element value="resource"/>
        <transform value="copy"/>
        <parameter>
          <valueId value="src"/>
        </parameter>
      </target>
      <documentation value="add in the patient to the bundle as is"/>
      <name value="patEntry"/>
    </rule>
    <rule>
      <source>
        <context value="src"/>
      </source>
      <target>
        <transform value="create"/>
        <parameter>
          <valueString value="Encounter"/>
        </parameter>
        <variable value="enc"/>
      </target>
      <target>
        <context value="tgt"/>
        <element value="entry"/>
        <variable value="entry"/>
      </target>
      <rule>
        <source>
          <context value="src"/>
          <element value="id"/>
          <variable value="v"/>
        </source>
        <target>
          <context value="enc"/>
          <element value="subject"/>
          <variable value="s"/>
        </target>
        <target>
          <context value="s"/>
          <element value="reference"/>
          <transform value="reference"/>
          <parameter>
            <valueId value="src"/>
          </parameter>
        </target>
        <name value="r2"/>
      </rule>
      <rule>
        <source>
          <context value="src"/>
        </source>
        <target>
          <context value="entry"/>
          <element value="resource"/>
          <transform value="copy"/>
          <parameter>
            <valueId value="enc"/>
          </parameter>
        </target>
        <documentation
                       value="Note the encounter entry is added after it has been populated"/>
        <name value="encounterEntry"/>
      </rule>
      <name value="encEntry"/>
    </rule>
  </group>
  <id value="TransformReference"/>
  <language value="en"/>
</StructureMap>