<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

## Forbid Extra Form Fields { #forbid-extra-form-fields }

In some special use cases (probably not very common), you might want to **restrict** the form fields to only those declared in the Pydantic model. And **forbid** any **extra** fields.

/// note

This is supported since FastAPI version `0.114.0`. 🤓

///

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

import jakarta.annotation.PostConstruct;

/**
 * Configuration class for query field mappings in the Fess search engine.
 * This class manages field configurations for various query operations including
 * response fields, search fields, facet fields, sort fields, and highlighting.
 * It initializes field mappings from the FessConfig and provides methods to
 * query field properties and capabilities.
 */
public class QueryFieldConfig {

    /**

     * @param fields array of fields to search in
     * @param excludes array of words to exclude from results
     * @return list of popular words matching the criteria
     */
    public List<String> getWordList(final SearchRequestType searchRequestType, final String seed, final String[] tags, final String[] roles,
            final String[] fields, final String[] excludes) {

        </field>
        <field>
          <name>exists</name>
          <version>1.0.0+</version>
          <type>String</type>
          <description>
            The name of the file that should exist to activate a profile. Please note, that missing and exists
            fields cannot be used together. Only one of them should be used at any one time.
          </description>
        </field>
      </fields>
    </class>

                if (isExcludeSearchword(words[i], fields != null && fields.length > 0 ? fields[0] : "", langs, analyzer)) {
                    continue;
                }

                final String word = normalizer.normalize(words[i], fields != null && fields.length > 0 ? fields[0] : "", langs);
                final List<String> l = readingConverter.convert(word, fields != null && fields.length > 0 ? fields[0] : "", langs);

    }

    /**
     * Test all fields are public and accessible
     */
    @Test
    @DisplayName("Test all fields are public")
    public void testAllFieldsArePublic() {
        // Get all declared fields
        Field[] fields = ServerData.class.getDeclaredFields();

        // Verify we have the expected number of fields
        assertEquals(19, fields.length);

        // Verify all fields are public

      <version>1.0.0+</version>
      <fields>
        <field>
          <name>toolchains</name>
          <version>1.0.0+</version>
          <description>The toolchain instance definition.</description>
          <association xml.itemsStyle="flat">
            <type>ToolchainModel</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
      <codeSegments>

     */
    public void setReadings(final String[][] readings) {
        this.readings = readings;
    }

    /**
     * Sets the fields of the suggest item.
     * @param fields The fields to set.
     */
    public void setFields(final String[] fields) {
        this.fields = fields;
    }

    /**
     * Sets the tags of the suggest item.
     * @param tags The tags to set.
     */

        item.setReadings(newReadings);
        assertArrayEquals(newReadings, item.getReadings());

        // Test fields
        String[] fields = { "field1", "field2" };
        item.setFields(fields);
        assertArrayEquals(fields, item.getFields());

        // Test tags
        String[] tags = { "tag1", "tag2" };
        item.setTags(tags);