#120 check unique grant name

src/main/java/ru/ulstu/grant/controller/GrantController.java

@@ -20,9 +20,7 @@ import springfox.documentation.annotations.ApiIgnore;
 import javax.validation.Valid;
 import java.io.IOException;
 import java.util.List;
-import java.util.stream.Collectors;
 
-import static org.springframework.util.StringUtils.isEmpty;
 import static ru.ulstu.core.controller.Navigation.GRANTS_PAGE;
 import static ru.ulstu.core.controller.Navigation.GRANT_PAGE;
 import static ru.ulstu.core.controller.Navigation.REDIRECT_TO;
@@ -62,17 +60,9 @@ public class GrantController {
     @PostMapping(value = "/grant", params = "save")
     public String save(@Valid GrantDto grantDto, Errors errors)
             throws IOException {
-        filterEmptyDeadlines(grantDto);
+        if (!grantService.save(grantDto, errors)) {
-        if (grantDto.getDeadlines().isEmpty()) {
-            errors.rejectValue("deadlines", "errorCode", "Не может быть пусто");
-        }
-        if (grantDto.getLeaderId().equals(-1)) {
-            errors.rejectValue("leaderId", "errorCode", "Укажите руководителя");
-        }
-        if (errors.hasErrors()) {
             return GRANT_PAGE;
         }
-        grantService.save(grantDto);
         return String.format(REDIRECT_TO, GRANTS_PAGE);
     }
 
@@ -89,7 +79,7 @@ public class GrantController {
 
     @PostMapping(value = "/grant", params = "addDeadline")
     public String addDeadline(@Valid GrantDto grantDto, Errors errors) {
-        filterEmptyDeadlines(grantDto);
+        grantService.filterEmptyDeadlines(grantDto);
         if (errors.hasErrors()) {
             return GRANT_PAGE;
         }
@@ -133,10 +123,4 @@ public class GrantController {
     public List<PaperDto> getAllPapers() {
         return grantService.getAllUncompletedPapers();
     }
-
-    private void filterEmptyDeadlines(GrantDto grantDto) {
-        grantDto.setDeadlines(grantDto.getDeadlines().stream()
-                .filter(dto -> dto.getDate() != null || !isEmpty(dto.getDescription()))
-                .collect(Collectors.toList()));
-    }
 }

src/main/java/ru/ulstu/grant/model/GrantDto.java

@@ -6,6 +6,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.file.model.FileDataDto;
+import ru.ulstu.name.NameContainer;
 import ru.ulstu.paper.model.PaperDto;
 import ru.ulstu.project.model.ProjectDto;
 import ru.ulstu.user.model.UserDto;
@@ -17,7 +18,7 @@ import java.util.stream.Collectors;
 
 import static ru.ulstu.core.util.StreamApiUtils.convert;
 
-public class GrantDto {
+public class GrantDto extends NameContainer {
     private final static int MAX_AUTHORS_LENGTH = 60;
 
     private Integer id;

src/main/java/ru/ulstu/grant/repository/GrantRepository.java

@@ -1,11 +1,18 @@
 package ru.ulstu.grant.repository;
 
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import ru.ulstu.grant.model.Grant;
+import ru.ulstu.name.BaseRepository;
 
 import java.util.List;
 
-public interface GrantRepository extends JpaRepository<Grant, Integer> {
+public interface GrantRepository extends JpaRepository<Grant, Integer>, BaseRepository {
 
     List<Grant> findByStatus(Grant.GrantStatus status);
+
+    @Override
+    @Query("SELECT title FROM Grant g WHERE (g.title = :name) AND (:id IS NULL OR g.id != :id) ")
+    String findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);
 }

src/main/java/ru/ulstu/grant/service/GrantService.java

@@ -3,6 +3,7 @@ package ru.ulstu.grant.service;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.validation.Errors;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.deadline.service.DeadlineService;
 import ru.ulstu.file.model.FileDataDto;
@@ -10,6 +11,7 @@ import ru.ulstu.file.service.FileService;
 import ru.ulstu.grant.model.Grant;
 import ru.ulstu.grant.model.GrantDto;
 import ru.ulstu.grant.repository.GrantRepository;
+import ru.ulstu.name.BaseService;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.model.PaperDto;
 import ru.ulstu.paper.service.PaperService;
@@ -27,6 +29,7 @@ import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 import static java.util.stream.Collectors.toList;
 import static org.springframework.util.ObjectUtils.isEmpty;
@@ -34,7 +37,7 @@ import static ru.ulstu.core.util.StreamApiUtils.convert;
 import static ru.ulstu.grant.model.Grant.GrantStatus.APPLICATION;
 
 @Service
-public class GrantService {
+public class GrantService extends BaseService {
     private final static int MAX_DISPLAY_SIZE = 50;
 
     private final GrantRepository grantRepository;
@@ -55,6 +58,7 @@ public class GrantService {
                         EventService eventService,
                         GrantNotificationService grantNotificationService) {
         this.grantRepository = grantRepository;
+        this.baseRepository = grantRepository;
         this.fileService = fileService;
         this.deadlineService = deadlineService;
         this.projectService = projectService;
@@ -176,12 +180,35 @@ public class GrantService {
         return grant;
     }
 
-    public void save(GrantDto grantDto) throws IOException {
+    public boolean save(GrantDto grantDto, Errors errors) throws IOException {
+        grantDto.setName(grantDto.getTitle());
+        filterEmptyDeadlines(grantDto);
+        checkEmptyDeadlines(grantDto, errors);
+        checkEmptyLeader(grantDto, errors);
+        checkUniqueName(grantDto, errors, grantDto.getId(), "title", "Грант с таким именем уже существует");
+        if (errors.hasErrors()) {
+            return false;
+        }
+
         if (isEmpty(grantDto.getId())) {
             create(grantDto);
         } else {
             update(grantDto);
         }
+
+        return true;
+    }
+
+    private void checkEmptyLeader(GrantDto grantDto, Errors errors) {
+        if (grantDto.getLeaderId().equals(-1)) {
+            errors.rejectValue("leaderId", "errorCode", "Укажите руководителя");
+        }
+    }
+
+    private void checkEmptyDeadlines(GrantDto grantDto, Errors errors) {
+        if (grantDto.getDeadlines().isEmpty()) {
+            errors.rejectValue("deadlines", "errorCode", "Не может быть пусто");
+        }
     }
 
     public List<User> getGrantAuthors(GrantDto grantDto) {
@@ -261,4 +288,10 @@ public class GrantService {
                 .filter(author -> Collections.frequency(authors, author) > 3)
                 .collect(toList());
     }
+
+    public void filterEmptyDeadlines(GrantDto grantDto) {
+        grantDto.setDeadlines(grantDto.getDeadlines().stream()
+                .filter(dto -> dto.getDate() != null || !org.springframework.util.StringUtils.isEmpty(dto.getDescription()))
+                .collect(Collectors.toList()));
+    }
 }