Adds the ability to select the operator to combine the advanced search fields.

There's a huge UX flaw here: try to use min and max delivery fee with the operator OR. Makes sense, but confuses the user. Agree?

Author: brunodrugowick

src/main/java/dev/drugowick/jpaqueriesblogpost/infrastructure/repository/CustomRestaurantRepositoryImpl.java

@@ -29,34 +29,35 @@ public List<Restaurant> advancedSearch(AdvancedSearch advancedSearch) {
         jpql.append("from Restaurant where 1=1 ");
 
         var parameters = new HashMap<String, Object>();
+        var logicalOperator = advancedSearch.getLogicalOperator().equals("AND") ? "AND" : "OR";
 
         if (StringUtils.hasLength(advancedSearch.getName())) {
-            jpql.append("and name like :name ");
+            jpql.append(logicalOperator + " name like :name ");
             parameters.put("name", "%" + advancedSearch.getName() + "%");
         }
 
         if (StringUtils.hasLength(advancedSearch.getAddress())) {
-            jpql.append("and address like :address ");
+            jpql.append(logicalOperator + " address like :address ");
             parameters.put("address", "%" + advancedSearch.getAddress() + "%");
         }
 
         if (advancedSearch.getMinDeliveryFee() != null) {
-            jpql.append("and deliveryFee >= :startFee ");
+            jpql.append(logicalOperator + " deliveryFee >= :startFee ");
             parameters.put("startFee", advancedSearch.getMinDeliveryFee());
         }
 
         if (advancedSearch.getMaxDeliveryFee() != null) {
-            jpql.append("and deliveryFee <= :endingFee ");
+            jpql.append(logicalOperator + " deliveryFee <= :endingFee ");
             parameters.put("endingFee", advancedSearch.getMaxDeliveryFee());
         }
 
         if (StringUtils.hasLength(advancedSearch.getCuisine())) {
-            jpql.append("and cuisine.name like :cuisine ");
+            jpql.append(logicalOperator + " cuisine.name like :cuisine ");
             parameters.put("cuisine", "%" + advancedSearch.getCuisine() + "%");
         }
 
         if (StringUtils.hasLength(advancedSearch.getCity())) {
-            jpql.append("and city like :city ");
+            jpql.append(logicalOperator + " city like :city ");
             parameters.put("city", "%" + advancedSearch.getCity() + "%");
         }
 

src/main/java/dev/drugowick/jpaqueriesblogpost/web/pages/dto/AdvancedSearch.java

@@ -16,4 +16,6 @@ public class AdvancedSearch {
     private String city;
     private String grabngo;
     private String active;
+
+    private String logicalOperator = "AND";
 }

src/main/resources/templates/advancedSearch.html

@@ -70,6 +70,13 @@ <h4>Filter Restaurants</h4>
                 </select>
             </div>
             -->
+            <div class="form-group row">
+                <label class="col col-sm-4" for="logicalOperator">Logical Operator</label>
+                <select class="form-control col-sm-8" id="logicalOperator" name="logicalOperator">
+                    <option th:selected="${search.getLogicalOperator() == 'AND'}" value="AND">AND</option>
+                    <option th:selected="${search.getLogicalOperator()} == 'OR'" value="OR">OR</option>
+                </select>
+            </div>
             <div class="form-group row">
                 <div class="col col-sm-4"></div>
                 <input class="btn btn-primary col col-sm-8" type="submit" value="Submit">