2 Replies Latest reply on May 30, 2012 3:20 AM by techless brainless

    Validation Error: Value is not valid

    techless brainless Newbie

      Hi All

      I am developing a small application in which the user can enter the student details which includes the course in which the user can select 1 or more subjects

      . adding the student works fine but while editing am facing a problem("Validation Error: Value is not valid") only when i reselect the course and the subjects

      update will works fine if i dont change the course ,

       

      faces config

      [code]

      <managed-bean>

      <managed-bean-name>updateStudentInfoBean</managed-bean-name>

        <managed-bean-class>com.example.UpdateStudentInfoBean</managed-bean-class>

        <managed-bean-scope>request</managed-bean-scope>

        <managed-property>

         <property-name>selectedStudentInfo</property-name>

         <property-class>com.example.StudentInfo</property-class>

         <value>#{selectedStudentInfo}</value>

        </managed-property>

      </managed-bean>

      <managed-bean>

      <managed-bean-name>selectedStudentInfo</managed-bean-name>

        <managed-bean-class>com.example.StudentInfo</managed-bean-class>

        <managed-bean-scope>request</managed-bean-scope>

      </managed-bean>

      [/code]

       

       

      editStudentInfo.xhmtl

      [code]

      <h:form>

       

                  <a4j:keepAlive beanName="selectedStudentInfo" />

       

                  <table align="center">

       

       

                      <tr>

                          <td>Student first Name:</td>

                          <td><h:inputText id="studentFirstName"

                                  value="#{selectedStudentInfo.studentFirstName}">

                              </h:inputText></td>

                          <td><h:message style="color:red;" for="studentFirstName" /></td>

                      </tr>

       

       

       

                      <tr>

                          <td>Course Details  :</td>

                          <td><h:selectOneMenu

                                  value="#{selectedStudentInfo.courseInfo.courseId}"

                                  converter="javax.faces.Integer" onchange="submit()"

                                  immediate="true"

                                  valueChangeListener="#{updateStudentInfoBean.processValueChange}">

                                  <f:selectItems value="#{updateStudentInfoBean.allCourses}" />

                              </h:selectOneMenu></td>

                      </tr>

       

                      <tr>

                          <td>Subject Details :</td>

                          <td><rich:pickList

                                  value="#{updateStudentInfoBean.selectedSubjects}"

                                  converter="javax.faces.Integer">

                                  <f:selectItems value="#{updateStudentInfoBean.allSubjects}"

                                      converter="javax.faces.Integer" />

                              </rich:pickList>

                          </td>

       

                      </tr>

       

       

                  </table>

                  <p align="center">

                      <h:commandButton value="Submit"

                          action="#{updateStudentInfoBean.update}" />

       

                  </p>

       

       

              </h:form>

      [/code]

       

       

      StudentInfo.java

      [code]

      public class StudentInfo {

       

          private Integer studentInfo;

          private String firstName;

          private String lastName;

          private CourseInfo courseInfo;

       

          public Integer getStudentInfo() {

              return studentInfo;

          }

       

          public void setStudentInfo(Integer studentInfo) {

              this.studentInfo = studentInfo;

          }

       

          public String getFirstName() {

              return firstName;

          }

       

          public void setFirstName(String firstName) {

              this.firstName = firstName;

          }

       

          public String getLastName() {

              return lastName;

          }

       

          public void setLastName(String lastName) {

              this.lastName = lastName;

          }

       

          public CourseInfo getCourseInfo() {

              return courseInfo;

          }

       

          public void setCourseInfo(CourseInfo courseInfo) {

              this.courseInfo = courseInfo;

          }

      }

      [/code]

       

       

       

      CourseInfo.java

      [code]

      public class CourseInfo {

       

          private Integer courseId;

          private String courseName;

       

          public Integer getCourseId() {

              return courseId;

          }

       

          public void setCourseId(Integer courseId) {

              this.courseId = courseId;

          }

       

          public String getCourseName() {

              return courseName;

          }

       

          public void setCourseName(String courseName) {

              this.courseName = courseName;

          }

       

      }

       

      [/code]

       

       

      SubjectInfo.java

      [code]

      public class SubjectInfo {

          private Integer subjectId;

          private String subjectName;

          private CourseInfo courseInfo;

       

          public Integer getSubjectId() {

              return subjectId;

          }

       

          public void setSubjectId(Integer subjectId) {

              this.subjectId = subjectId;

          }

       

          public String getSubjectName() {

              return subjectName;

          }

       

          public void setSubjectName(String subjectName) {

              this.subjectName = subjectName;

          }

       

          public CourseInfo getCourseInfo() {

              return courseInfo;

          }

       

          public void setCourseInfo(CourseInfo courseInfo) {

              this.courseInfo = courseInfo;

          }

      }

       

      [/code]

       

       

      UpdateStudentInfoBean

      [code]

      public class UpdateStudentInfoBean {

       

          private Integer selectedCourseId;

          private List<Integer> selectedSubjectsInfo = new ArrayList<Integer>();

       

          private StudentInfo  selectedStudentInfo;

       

       

       

       

          public List<SelectItem> getAllCourses() {

       

              List<CourseInfo> coursesInfo = new DatabaseQueries().getCourses();

       

              List<SelectItem> items = new ArrayList<SelectItem>();

       

              for (CourseInfo courseInfo : coursesInfo)

                  items.add(new SelectItem(courseInfo.getCourseId(), courseInfo

                          .getCourseName()));

       

              return items;

          }

       

       

       

          public List<SelectItem> getAllSubjects() {

              List<SubjectInfo> subjectsInfo = null;

              List<SelectItem> items = new ArrayList<SelectItem>();

       

       

              if (this.selectedStudentInfo != null) {

                  if (this.selectedStudentInfo.getCourseInfo() != null) {

                      this.selectedCourseId = this.selectedStudentInfo

                              .getCourseInfo().getCourseId();

                  }

              }

       

              CourseInfo courseInfo = new DatabaseQueries()

                      .getCourseInfo(this.selectedCourseId);

       

              if (courseInfo == null)

                  return items;

       

              subjectsInfo = new DatabaseQueries().getSubjectsInfo(courseInfo);

       

       

       

              for (SubjectInfo subjectInfo : subjectsInfo){

                  items.add(new SelectItem(subjectInfo.getSubjectId(),

                          subjectInfo.getSubjectName()));

              }

       

              return items;

          }

       

              public List<Integer> getSelectedSubjects() {

              List<Integer> currentSelectedSubjects = new ArrayList<Integer>();

       

              if ((this.selectedStudentInfo != null)) {

       

                  if (this.selectedStudentInfo.getCourseInfo() != null) {

       

                      List<StudentSubjectMapping> studentSubjectMappings = new DatabaseQueries()

                              .getSubjects(this.selectedStudentInfo);

       

                      if (studentSubjectMappings!=null){

                          if (studentSubjectMappings.size() > 0) {

       

                              for (StudentSubjectMapping studentSubjectMapping : studentSubjectMappings) {

                                  currentSelectedSubjects.add(studentSubjectMapping

                                          .getSubjectInfo().getSubjectId());

                              }

                          }

                      }

                  }

              }

       

              if (currentSelectedSubjects.size() > 0)

                  return currentSelectedSubjects;

              else{

                  selectedSubjectsInfo.clear();

                  return selectedSubjectsInfo;

              }

          }

       

          public void setSelectedPrerequisites(List<Integer> selectedPrerequisites) {

              this.selectedSubjectsInfo = selectedPrerequisites;

          }

       

              public void processValueChange(ValueChangeEvent arg0)

                  throws AbortProcessingException {

       

              this.setSelectedCourseId(Integer.getInteger(arg0.getNewValue()

                      .toString()));

          }

       

                      public Integer getSelectedCourseId() {

                      return selectedCourseId;

                  }

       

       

       

                  public void setSelectedCourseId(Integer selectedCourseId) {

                      this.selectedCourseId = selectedCourseId;

                  }

       

       

       

                  public List<Integer> getSelectedSubjectsInfo() {

                      return selectedSubjectsInfo;

                  }

       

       

       

                  public void setSelectedSubjectsInfo(List<Integer> selectedSubjectsInfo) {

                      this.selectedSubjectsInfo = selectedSubjectsInfo;

                  }

       

       

       

                  public StudentInfo getSelectedStudentInfo() {

                      return selectedStudentInfo;

                  }

       

       

       

                  public void setSelectedStudentInfo(StudentInfo selectedStudentInfo) {

                      this.selectedStudentInfo = selectedStudentInfo;

                  }

       

       

       

      }

       

      [/code]