src/main/java/de/hitec/nhplus/nurse/LockedNurseController.java

@@ -8,17 +8,14 @@ import de.hitec.nhplus.utils.DateConverter;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
-import javafx.collections.ObservableMap;
 import javafx.fxml.FXML;
 import javafx.scene.control.Button;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.cell.PropertyValueFactory;
-import javafx.scene.control.cell.TextFieldTableCell;
 
 import java.sql.SQLException;
 import java.time.LocalDate;
-import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -50,18 +47,12 @@ public class LockedNurseController {
         this.readAllAndShowInTableView();
 
         this.columnId.setCellValueFactory(new PropertyValueFactory<>("id"));
-
         this.columnFirstName.setCellValueFactory(new PropertyValueFactory<>("firstName"));
-        this.columnFirstName.setCellFactory(TextFieldTableCell.forTableColumn());
-
         this.columnSurName.setCellValueFactory(new PropertyValueFactory<>("surName"));
-        this.columnSurName.setCellFactory(TextFieldTableCell.forTableColumn());
-
         this.columnPhoneNumber.setCellValueFactory(new PropertyValueFactory<>("phoneNumber"));
-        this.columnPhoneNumber.setCellFactory(TextFieldTableCell.forTableColumn());
-
-        this.columnDeleteDate.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().calculateDeleteDate(treatmentsPerNurse.get(cellData.getValue()))));
-        //this.columnDeleteDate.setCellFactory(TextFieldTableCell.forTableColumn());
+        this.columnDeleteDate.setCellValueFactory(cellData -> new SimpleStringProperty(
+                DateConverter.convertLocalDateToString(cellData.getValue().calculateDeleteDate()))
+        );
 
         buttonDelete.setDisable(true);
 
@@ -110,7 +101,8 @@ public class LockedNurseController {
     @FXML
     public void handleMouseClick() {
         Nurse nurse = tableView.getSelectionModel().getSelectedItem();
-        buttonDelete.setDisable(!(DateConverter.convertStringToLocalDate(nurse.calculateDeleteDate(treatmentsPerNurse.get(nurse))).isBefore(LocalDate.now())));
+        boolean canBeDeleted = nurse.calculateDeleteDate().isBefore(LocalDate.now());
+        buttonDelete.setDisable(!canBeDeleted);
     }
 
     @FXML

src/main/java/de/hitec/nhplus/nurse/Nurse.java

@@ -1,5 +1,6 @@
 package de.hitec.nhplus.nurse;
 
+import de.hitec.nhplus.datastorage.DaoFactory;
 import de.hitec.nhplus.main.Person;
 import de.hitec.nhplus.treatment.Treatment;
 import de.hitec.nhplus.utils.DateConverter;
@@ -7,6 +8,7 @@ import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.property.SimpleIntegerProperty;
 import javafx.beans.property.SimpleStringProperty;
 
+import java.sql.SQLException;
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
 import java.util.List;
@@ -66,17 +68,26 @@ public class Nurse extends Person {
         this.locked = new SimpleBooleanProperty(isLocked);
     }
 
-    public String calculateDeleteDate(List<Treatment> treatments) {
-        LocalDate today = LocalDate.now();
+    public LocalDate calculateDeleteDate() {
+        List<Treatment> treatments;
+        try {
+            treatments = DaoFactory.getInstance().createTreatmentDao().readTreatmentsByNurse(this.getId());
+        }catch (SQLException exception){
+            treatments = null;
+        }
+        if(treatments == null){
+            return LocalDate.now().plusDays(1);
+        }
+
         LocalDate newestDate = LocalDate.of(1980, 1, 1);
         for (Treatment treatment : treatments) {
-            if (DateConverter.convertStringToLocalDate(treatment.getDate()).isAfter(newestDate)) {
-                newestDate = DateConverter.convertStringToLocalDate(treatment.getDate());
+            LocalDate date = DateConverter.convertStringToLocalDate(treatment.getDate());
+            if (date.isAfter(newestDate)) {
+                newestDate = date;
             }
         }
 
-
-        return DateConverter.convertLocalDateToString(newestDate.plusYears(10));
+        return newestDate.plusYears(10);
     }
 
     public void setPhoneNumber(String phoneNumber) {