@ReadOnly fields (#4)

src/main/java/tech/ailef/dbadmin/external/annotations/ReadOnly.java

@@ -0,0 +1,35 @@
+/* 
+ * Spring Boot Database Admin - An automatically generated CRUD admin UI for Spring Boot apps
+ * Copyright (C) 2023 Ailef (http://ailef.tech)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+package tech.ailef.dbadmin.external.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Marks a field as read-only. The field can be filled at creation time, but
+ * it will be shown as disabled during edits, making it impossible to change its
+ * value after creation. 
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.FIELD)
+public @interface ReadOnly {
+}

src/main/java/tech/ailef/dbadmin/external/dbmapping/CustomJpaRepository.java

@@ -110,6 +110,7 @@ public class CustomJpaRepository extends SimpleJpaRepository {
 
 		for (DbField field : schema.getSortedFields()) {
 			if (field.isPrimaryKey()) continue;
+			if (field.isReadOnly()) continue;
 			
 			boolean keepValue = params.getOrDefault("__keep_" + field.getName(), "off").equals("on");
 			if (keepValue) continue;

src/main/java/tech/ailef/dbadmin/external/dbmapping/DbField.java

@@ -30,6 +30,7 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import tech.ailef.dbadmin.external.annotations.DisplayImage;
 import tech.ailef.dbadmin.external.annotations.Filterable;
 import tech.ailef.dbadmin.external.annotations.FilterableType;
+import tech.ailef.dbadmin.external.annotations.ReadOnly;
 
 /**
  * Represent a field on the database, generated from an Entity class instance variable.
@@ -190,6 +191,10 @@ public class DbField {
 		return filterable != null && filterable.type() == FilterableType.CATEGORICAL;
 	}
 	
+	public boolean isReadOnly() {
+		return getPrimitiveField().getAnnotation(ReadOnly.class) != null;
+	}
+	
 	public Set<DbFieldValue> getAllValues() {
 		List<?> findAll = schema.getJpaRepository().findAll();
 		return findAll.stream()

src/main/resources/templates/model/create.html

@@ -56,6 +56,7 @@
 														class="form-control" th:id="|__id_${field.getName()}|"
 														th:required="${!field.isNullable() && !field.isPrimaryKey()}"
 														rows="5"
+														th:classAppend="${field.isReadOnly() && !create ? 'disable' : ''}"
 														></textarea>
 											</th:block>
 											<th:block th:if="${!field.isText()}">
@@ -65,7 +66,8 @@
 															${create ? (params != null ? params.getOrDefault(field.getName(), '') : '') 
 															 : (object != null ? object.get(field).getValue() : '' )}
 														"
-														class="form-control" th:id="|__id_${field.getName()}|"
+														th:class="|form-control ${field.isReadOnly() && !create ? 'disable' : ''}|" 
+														th:id="|__id_${field.getName()}|"
 														th:classAppend="${field.isPrimaryKey() && object != null ? 'disable' : ''}"
 														th:required="${!field.isNullable() && !field.isPrimaryKey()}"
 														step="any"
@@ -81,17 +83,21 @@
 														th:data-fieldname="${field.getName()}"
 														th:id="|__keep_${field.getName()}|"
 														checked
+														th:classAppend="${field.isReadOnly() && !create ? 'disable' : ''}"
 														th:name="|__keep_${field.getName()}|">
 														<span>Keep current data</span>
 													<div th:if="${field.isImage()}" class="mb-2">
-														<img class="thumb-image" th:id="|__thumb_${field.getName()}|"
+														<img class="thumb-image"
+															th:id="|__thumb_${field.getName()}|"
 															th:src="|/${baseUrl}/download/${schema.getClassName()}/${field.getJavaName()}/${object.getPrimaryKeyValue()}/image|">
 													</div>
 												</div>
 												<!--/*--> File input <!--*/-->
-												<input th:if="${field.isBinary()}" placeholder="NULL" th:type="${field.getType().getHTMLName()}" 
+												<input
+													th:if="${field.isBinary()}" placeholder="NULL" th:type="${field.getType().getHTMLName()}" 
 													th:name="${field.getName()}" 
-													class="form-control mt-2" th:id="|__id_${field.getName()}|"
+													th:class="|form-control mt-2 ${field.isReadOnly() && !create ? 'disable' : ''}|"
+													th:id="|__id_${field.getName()}|"
 													th:required="${!field.isNullable()}"
 													>
 											</th:block>