feat: log errors (#144)

Related: #143

Author: Pawel Tschudnowsky

src/main/java/org/springframework/data/jpa/datatables/qrepository/QDataTablesRepositoryImpl.java

@@ -5,6 +5,7 @@
 import com.querydsl.core.types.Ops;
 import com.querydsl.core.types.Predicate;
 import com.querydsl.core.types.dsl.PathBuilder;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
 import org.springframework.data.jpa.datatables.PredicateBuilder;
 import org.springframework.data.jpa.datatables.mapping.DataTablesInput;
@@ -25,6 +26,7 @@
 
 import static com.querydsl.core.types.dsl.Expressions.stringOperation;
 
+@Slf4j
 public class QDataTablesRepositoryImpl<T, ID extends Serializable>
     extends QuerydslJpaRepository<T, ID> implements QDataTablesRepository<T, ID> {
 
@@ -102,6 +104,7 @@ public <R> DataTablesOutput<R> findAll(DataTablesInput input, Predicate addition
         output.setSearchPanes(computeSearchPanes(input, predicate));
       }
     } catch (Exception e) {
+      log.warn("error while fetching records", e);
       output.setError(e.toString());
     }
 

src/main/java/org/springframework/data/jpa/datatables/repository/DataTablesRepositoryImpl.java

@@ -1,5 +1,6 @@
 package org.springframework.data.jpa.datatables.repository;
 
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
 import org.springframework.data.jpa.datatables.SpecificationBuilder;
 import org.springframework.data.jpa.datatables.mapping.DataTablesInput;
@@ -20,6 +21,7 @@
 import java.util.Map;
 import java.util.function.Function;
 
+@Slf4j
 public class DataTablesRepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID>
     implements DataTablesRepository<T, ID> {
   private final EntityManager entityManager;
@@ -87,6 +89,7 @@ public <R> DataTablesOutput<R> findAll(DataTablesInput input,
         output.setSearchPanes(computeSearchPanes(input, specification));
       }
     } catch (Exception e) {
+      log.warn("error while fetching records", e);
       output.setError(e.toString());
     }