# Extra Models { #extra-models }

Continuing with the previous example, it will be common to have more than one related model.

This is especially the case for user models, because:

* The **input model** needs to be able to have a password.
* The **output model** should not have a password.
* The **database model** would probably need to have a hashed password.

/// danger

import java.io.File;

import org.apache.maven.model.Model;

/**
 */
@Deprecated
public interface PathTranslator {
    String ROLE = PathTranslator.class.getName();

    void alignToBaseDirectory(Model model, File basedir);

    String alignToBaseDirectory(String path, File basedir);

    void unalignFromBaseDirectory(Model model, File basedir);

///

## Another module with `APIRouter` { #another-module-with-apirouter }

Let's say you also have the endpoints dedicated to handling "items" from your application in the module at `app/routers/items.py`.

You have *path operations* for:

* `/items/`
* `/items/{item_id}`

                                    <div class="modal" id="createDir" tabindex="-1" role="dialog">
                                        <div class="modal-dialog">
                                            <la:form action="/admin/storage/createDir/"
                                                     enctype="multipart/form-data" styleClass="modal-content">

                                                     tabindex="-1" role="dialog">
                                                    <div class="modal-dialog">
                                                        <div class="modal-content bg-danger">
                                                            <div class="modal-header">

                                    <div class="modal-dialog">
                                        <div class="modal-content bg-danger">
                                            <div class="modal-header">
                                                <h4 class="modal-title">
                                                    <la:message key="labels.clear_crawler_index_button"/>
                                                </h4>

              <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
              <version>2.0.0</version>
              <models>
                <model>src/main/mdo/plugin.mdo</model>
              </models>
              <templates>
                <template>model.vm</template>
              </templates>
              <params>
                <param>packageModelV4=org.apache.maven.api.plugin.descriptor</param>

 * under the License.
 */
package org.apache.maven.project.validation;

import org.apache.maven.model.Model;

/**
 * Checks the model for missing or invalid values.
 *
 */
@Deprecated
public interface ModelValidator {

    String ROLE = ModelValidator.class.getName();

    ModelValidationResult validate(Model model);

                                            <div class="modal fade" id="confirmToDeleteAll"
                                                 tabindex="-1" role="dialog">
                                                <div class="modal-dialog">
                                                    <div class="modal-content bg-danger">
                                                        <div class="modal-header">

                                        <div class="modal fade" id="confirmToDelete"
                                             tabindex="-1" role="dialog">
                                            <div class="modal-dialog">
                                                <div class="modal-content bg-danger">
                                                    <div class="modal-header">