Fix sorting issue

infobip-spring-data-common/src/main/java/com/infobip/spring/data/common/Querydsl.java

@@ -18,14 +18,14 @@
 import com.querydsl.core.types.*;
 import com.querydsl.core.types.OrderSpecifier.NullHandling;
 import com.querydsl.core.types.dsl.Expressions;
-import com.querydsl.core.types.dsl.PathBuilder;
 import com.querydsl.sql.SQLQuery;
 import com.querydsl.sql.SQLQueryFactory;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.domain.Sort.Order;
-import org.springframework.data.mapping.PropertyPath;
 import org.springframework.data.querydsl.QSort;
+import org.springframework.data.relational.core.mapping.RelationalPersistentEntity;
+import org.springframework.data.relational.core.mapping.RelationalPersistentProperty;
 import org.springframework.util.Assert;
 
 import java.util.List;
@@ -36,11 +36,11 @@
 public class Querydsl {
 
 	private final SQLQueryFactory sqlQueryFactory;
-	private final PathBuilder<?> builder;
+	private final RelationalPersistentEntity<?> entity;
 
-	public Querydsl(SQLQueryFactory sqlQueryFactory, PathBuilder<?> builder) {
+	public Querydsl(SQLQueryFactory sqlQueryFactory, RelationalPersistentEntity<?> entity) {
 		this.sqlQueryFactory = sqlQueryFactory;
-		this.builder = builder;
+		this.entity = entity;
 	}
 
 	public SQLQuery<?> createQuery() {
@@ -135,18 +135,9 @@ private Expression<?> buildOrderPropertyPathFrom(Order order) {
 
 		Assert.notNull(order, "Order must not be null!");
 
-		PropertyPath path = PropertyPath.from(order.getProperty(), builder.getType());
-		Expression<?> sortPropertyExpression = builder;
+		RelationalPersistentProperty persistentProperty = entity.getRequiredPersistentProperty(order.getProperty());
+		String columnName = persistentProperty.getColumnName().getReference();
 
-		while (path != null) {
-
-			sortPropertyExpression = !path.hasNext() && order.isIgnoreCase() && String.class.equals(path.getType()) //
-					? Expressions.stringPath((Path<?>) sortPropertyExpression, path.getSegment()).lower() //
-					: Expressions.path(path.getType(), (Path<?>) sortPropertyExpression, path.getSegment());
-
-			path = path.next();
-		}
-
-		return sortPropertyExpression;
+		return Expressions.stringPath(columnName);
 	}
 }

infobip-spring-data-jdbc-querydsl/src/main/java/com/infobip/spring/data/jdbc/QuerydslJdbcRepositoryFactory.java

@@ -18,7 +18,6 @@
 import com.infobip.spring.data.common.Querydsl;
 import com.infobip.spring.data.common.QuerydslExpressionFactory;
 import com.querydsl.core.types.ConstructorExpression;
-import com.querydsl.core.types.dsl.PathBuilder;
 import com.querydsl.sql.*;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.data.jdbc.core.convert.DataAccessStrategy;
@@ -88,7 +87,7 @@ private QuerydslJdbcPredicateExecutor<?> createQuerydslJdbcPredicateExecutor(Rep
                                                                                  ConstructorExpression<?> constructorExpression,
                                                                                  RelationalPathBase<?> path) {
         RelationalPersistentEntity<?> entity = context.getRequiredPersistentEntity(metadata.getDomainType());
-        Querydsl querydsl = new Querydsl(sqlQueryFactory, new PathBuilder<>(path.getType(), path.getMetadata()));
+        Querydsl querydsl = new Querydsl(sqlQueryFactory, entity);
         return getTargetRepositoryViaReflection(QuerydslJdbcPredicateExecutor.class,
                                                 entity,
                                                 converter,

infobip-spring-data-jdbc-querydsl/src/test/java/com/infobip/spring/data/jdbc/sorting/SortingEntity.java

@@ -0,0 +1,19 @@
+package com.infobip.spring.data.jdbc.sorting;
+
+import lombok.*;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.relational.core.mapping.Column;
+import org.springframework.data.relational.core.mapping.Table;
+
+@Value
+@Table("sorting_entity")
+public class SortingEntity {
+
+    @With
+    @Id
+    @Column("id")
+    private final Long id;
+
+    @Column("foo_bar")
+    private final String fooBar;
+}

infobip-spring-data-jdbc-querydsl/src/test/java/com/infobip/spring/data/jdbc/sorting/SortingEntityPagingRepository.java

@@ -0,0 +1,7 @@
+package com.infobip.spring.data.jdbc.sorting;
+
+import com.infobip.spring.data.jdbc.QuerydslJdbcRepository;
+
+public interface SortingEntityPagingRepository extends QuerydslJdbcRepository<SortingEntity, Long> {
+
+}

infobip-spring-data-jdbc-querydsl/src/test/java/com/infobip/spring/data/jdbc/sorting/SortingEntityPagingRepositoryTest.java

@@ -0,0 +1,92 @@
+package com.infobip.spring.data.jdbc.sorting;
+
+import com.infobip.spring.data.jdbc.TestBase;
+import lombok.AllArgsConstructor;
+import org.junit.jupiter.api.Test;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.domain.Sort.Order;
+import org.springframework.data.querydsl.QPageRequest;
+
+import static com.infobip.spring.data.jdbc.sorting.QSortingEntity.sortingEntity;
+import static org.assertj.core.api.BDDAssertions.then;
+
+@AllArgsConstructor
+public class SortingEntityPagingRepositoryTest extends TestBase {
+
+    private final SortingEntityPagingRepository repository;
+
+    @Test
+    void shouldFindByPage() {
+        // given
+        SortingEntity givenEntity = repository.save(new SortingEntity(null, "givenValue"));
+
+        // when
+        Page<SortingEntity> actual = repository.findAll(PageRequest.of(0, 1));
+
+        then(actual.getContent()).containsExactly(givenEntity);
+    }
+
+    @Test
+    void shouldSortUsingQSort() {
+        // given
+        SortingEntity givenEntityA = repository.save(new SortingEntity(null, "A"));
+        SortingEntity givenEntityC = repository.save(new SortingEntity(null, "C"));
+        SortingEntity givenEntityB = repository.save(new SortingEntity(null, "B"));
+
+        // when
+        Page<SortingEntity> actual = repository.findAll(QPageRequest.of(0, 5, sortingEntity.fooBar.desc()));
+
+        then(actual.getContent()).containsExactly(givenEntityC, givenEntityB, givenEntityA);
+    }
+
+    @Test
+    void shouldSortUsingSort() {
+        // given
+        SortingEntity givenEntityA = repository.save(new SortingEntity(null, "A"));
+        SortingEntity givenEntityC = repository.save(new SortingEntity(null, "C"));
+        SortingEntity givenEntityB = repository.save(new SortingEntity(null, "B"));
+
+        // when
+        Page<SortingEntity> actual = repository.findAll(PageRequest.of(0, 5, Sort.by(Order.desc("fooBar"))));
+
+        then(actual.getContent()).containsExactly(givenEntityC, givenEntityB, givenEntityA);
+    }
+
+    @Test
+    void shouldSortUsingQSortCombinedWithPredicate() {
+        // given
+        SortingEntity givenEntityA = repository.save(new SortingEntity(null, "1A"));
+        SortingEntity givenEntityC = repository.save(new SortingEntity(null, "1C"));
+        SortingEntity givenEntityB = repository.save(new SortingEntity(null, "1B"));
+        SortingEntity otherEntity = repository.save(new SortingEntity(null, "2"));
+
+        // when
+        Page<SortingEntity> actual = repository.findAll(
+                sortingEntity.fooBar.startsWith("1"),
+                // does not work because generated classes in this project uses different naming strategy then is used in this project
+                 QPageRequest.of(0, 5, sortingEntity.fooBar.desc())
+        );
+
+        then(actual.getContent()).containsExactly(givenEntityC, givenEntityB, givenEntityA);
+    }
+
+    @Test
+    void shouldSortUsingSortCombinedWithPredicate() {
+        // given
+        SortingEntity givenEntityA = repository.save(new SortingEntity(null, "1A"));
+        SortingEntity givenEntityC = repository.save(new SortingEntity(null, "1C"));
+        SortingEntity givenEntityB = repository.save(new SortingEntity(null, "1B"));
+        SortingEntity otherEntity = repository.save(new SortingEntity(null, "2"));
+
+        // when
+        Page<SortingEntity> actual = repository.findAll(
+                sortingEntity.fooBar.startsWith("1"),
+                PageRequest.of(0, 5, Sort.by(Order.desc("fooBar")))
+        );
+
+        then(actual.getContent()).containsExactly(givenEntityC, givenEntityB, givenEntityA);
+    }
+}
+

infobip-spring-data-jdbc-querydsl/src/test/resources/db/migration/V1_0_0__base_schema.sql

@@ -30,3 +30,9 @@ CREATE TABLE PagingEntity (
     Value NVARCHAR(20),
     CONSTRAINT PK_PagingEntity PRIMARY KEY (Id),
 );
+
+CREATE TABLE sorting_entity (
+   id    BIGINT IDENTITY,
+   foo_bar NVARCHAR(20),
+   CONSTRAINT PK_sorting_entity PRIMARY KEY (id),
+);

infobip-spring-data-r2dbc-querydsl/src/main/java/com/infobip/spring/data/r2dbc/QuerydslR2dbcRepositoryFactory.java

@@ -18,11 +18,14 @@
 import com.infobip.spring.data.common.Querydsl;
 import com.infobip.spring.data.common.QuerydslExpressionFactory;
 import com.querydsl.core.types.ConstructorExpression;
-import com.querydsl.core.types.dsl.PathBuilder;
 import com.querydsl.sql.*;
+import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.r2dbc.convert.R2dbcConverter;
 import org.springframework.data.r2dbc.core.R2dbcEntityOperations;
 import org.springframework.data.r2dbc.repository.support.R2dbcRepositoryFactory;
+import org.springframework.data.relational.core.mapping.RelationalMappingContext;
+import org.springframework.data.relational.core.mapping.RelationalPersistentEntity;
+import org.springframework.data.relational.core.mapping.RelationalPersistentProperty;
 import org.springframework.data.repository.core.RepositoryMetadata;
 import org.springframework.data.repository.core.support.RepositoryComposition;
 import org.springframework.data.repository.core.support.RepositoryFragment;
@@ -85,9 +88,15 @@ private RepositoryFragment<Object> createSimpleQuerydslR2dbcFragment(RelationalP
         return RepositoryFragment.implemented(simpleJPAQuerydslFragment);
     }
 
+    @SuppressWarnings("unchecked")
     private RepositoryFragment<Object> createQuerydslJdbcPredicateExecutor(ConstructorExpression<?> constructorExpression,
                                                                            RelationalPathBase<?> path) {
-        Querydsl querydsl = new Querydsl(sqlQueryFactory, new PathBuilder<>(path.getType(), path.getMetadata()));
+
+
+        MappingContext<? extends RelationalPersistentEntity<?>, ? extends RelationalPersistentProperty> context = converter.getMappingContext();
+        RelationalPersistentEntity<?> entity = context.getRequiredPersistentEntity(constructorExpression.getType());
+
+        Querydsl querydsl = new Querydsl(sqlQueryFactory, entity);
         Object querydslJdbcPredicateExecutor = getTargetRepositoryViaReflection(
                 ReactiveQuerydslR2dbcPredicateExecutor.class,
                 constructorExpression,