BAEL-1666 Working with custom attributes in Thymeleaf (#5089)
* BAEL-1666 Working with custom attributes in Thymeleaf * Delete listCourses.html
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package com.baeldung.thymeleaf.controller;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import com.baeldung.thymeleaf.model.Course;
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/**
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* Handles requests for the student model.
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*
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*/
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@Controller
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public class CourseRegistrationController {
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@RequestMapping(value = "/registerCourse", method = RequestMethod.POST)
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public String register(@ModelAttribute Course course, Model model) {
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model.addAttribute("successMessage", "You have successfully registered for course: " + course.getName() + ".");
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return "courseRegistration.html";
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}
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@RequestMapping(value = "/registerCourse", method = RequestMethod.GET)
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public String register(Model model) {
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model.addAttribute("course", new Course());
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return "courseRegistration.html";
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}
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}
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package com.baeldung.thymeleaf.model;
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import java.util.Date;
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public class Course {
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private String name;
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private String description;
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private Date startDate;
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private Date endDate;
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private String teacher;
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getDescription() {
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return description;
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}
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public void setDescription(String description) {
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this.description = description;
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}
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public Date getStartDate() {
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return startDate;
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}
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public void setStartDate(Date startDate) {
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this.startDate = startDate;
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}
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public Date getEndDate() {
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return endDate;
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}
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public void setEndDate(Date endDate) {
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this.endDate = endDate;
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}
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public String getTeacher() {
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return teacher;
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}
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public void setTeacher(String teacher) {
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this.teacher = teacher;
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}
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}
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:th="http://www.thymeleaf.org">
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<head>
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<title>Register for course</title>
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<script>
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function validateForm() {
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var e = document.getElementById("course");
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var value = e.options[e.selectedIndex].value;
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if (value == '') {
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var error = document.getElementById("errormesg");
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error.textContent = e.getAttribute('data-validation-message');
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return false;
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}
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return true;
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}
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</script>
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</head>
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<body>
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<h3>Register Here</h3>
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<form action="#" th:action="@{/registerCourse}" th:object="${course}"
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method="post" onsubmit="return validateForm();">
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<span id="errormesg" style="color: red"></span> <span
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style="font-weight: bold" th:text="${successMessage}"></span>
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<table>
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<tr>
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<td><label th:text="#{msg.courseName}+': '"></label></td>
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<td><select id="course" th:field="*{name}"
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th:data-validation-message="#{msg.courseName.mandatory}">
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<option th:value="''" th:text="'Select'"></option>
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<option th:value="'Mathematics'" th:text="'Mathematics'"></option>
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<option th:value="'History'" th:text="'History'"></option>
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</select></td>
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</tr>
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<tr>
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<td><input type="submit" value="Submit" /></td>
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</tr>
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</table>
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</form>
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</body>
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</html>
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@ -24,6 +24,9 @@
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<tr>
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<td><a th:href="@{/listBooks}" th:text="#{msg.ListBooks}" /></td>
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</tr>
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<tr>
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<td><a th:href="@{/registerCourse}" th:text="#{msg.CourseRegistration}" /></td>
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</tr>
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</table>
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</body>
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</html>
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