3380 Made it possible to edit minimum/maximum authors

There has always been a minimum and maximum limit on the number of authors per project type, it was just never configurable. Made them configurable while working on the panel.

view/src/main/java/se/su/dsv/scipro/admin/panels/AdminProjectTypePanel.html

@@ -22,6 +22,18 @@
                 <label wicket:for="description">Description</label>
                 <textarea class="form-control" wicket:id="description" cols="60" rows="5"></textarea>
             </div>
+            <div class="mb-3">
+                <label wicket:for="minimum_authors">
+                    Minimum number of authors per student idea
+                </label>
+                <input class="form-control" type="number" wicket:id="minimum_authors">
+            </div>
+            <div class="mb-3">
+                <label wicket:for="minimum_authors">
+                    Maximum number of authors per student idea
+                </label>
+                <input class="form-control" type="number" wicket:id="maximum_authors">
+            </div>
             <div class="mb-3">
                 <label wicket:for="minimum_oppositions_to_be_graded">
                     Minimum approved final seminar oppositions to be graded

view/src/main/java/se/su/dsv/scipro/admin/panels/AdminProjectTypePanel.java

@@ -68,6 +68,22 @@ public class AdminProjectTypePanel extends Panel {
             minimumActiveParticipationsToBeGraded.setMinimum(0);
             add(minimumActiveParticipationsToBeGraded);
 
+            NumberTextField<Integer> minimumAuthors = new NumberTextField<>(
+                    "minimum_authors",
+                    LambdaModel.of(settings, ProjectTypeSettings::getMinAuthors, ProjectTypeSettings::setMinAuthors),
+                    Integer.class);
+            minimumAuthors.setMinimum(1);
+            minimumAuthors.setRequired(true);
+            add(minimumAuthors);
+
+            NumberTextField<Integer> maximumAuthors = new NumberTextField<>(
+                    "maximum_authors",
+                    LambdaModel.of(settings, ProjectTypeSettings::getMaxAuthors, ProjectTypeSettings::setMaxAuthors),
+                    Integer.class);
+            maximumAuthors.setMinimum(1);
+            maximumAuthors.setRequired(true);
+            add(maximumAuthors);
+
             Button createButton = new Button("createButton") {
 	            @Override
                 public void onSubmit() {

view/src/test/java/se/su/dsv/scipro/admin/panels/AdminProjectTypePanelTest.java

@@ -40,4 +40,19 @@ public class AdminProjectTypePanelTest extends SciProTest {
 
         assertEquals(DegreeType.values()[index], captor.getValue().getDegreeType());
     }
+
+    @Test
+    public void set_min_max_authors() {
+        FormTester formTester = tester.newFormTester(path(panel, "projectTypeForm"));
+        formTester.setValue("name", "bachelor");
+        formTester.setValue("minimum_authors", "17");
+        formTester.setValue("maximum_authors", "29");
+        formTester.submit("createButton");
+
+        ArgumentCaptor<ProjectType> captor = ArgumentCaptor.forClass(ProjectType.class);
+        verify(projectTypeService).save(captor.capture());
+
+        assertEquals(17, captor.getValue().getProjectTypeSettings().getMinAuthors());
+        assertEquals(29, captor.getValue().getProjectTypeSettings().getMaxAuthors());
+    }
 }