Merge branch '64-add-article-conf' into 'dev'

Resolve "Добавить новую статью к конференции" Closes #64 See merge request romanov73/ng-tracker!70
2019-04-24 09:35:08 +00:00 · 2019-04-24 09:35:08 +00:00 · 1e6fbdc1fa
commit 1e6fbdc1fa
parent 54c6fe815d d37c9bda57
20 changed files with 211 additions and 80 deletions
--- a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
+++ b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
@ -6,7 +6,6 @@ import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@ -68,6 +67,12 @@ public class ConferenceController {
        }
    }

+    @PostMapping(value = "/conferences", params = "deleteConference")
+    public String delete(@RequestParam("deleteConference") Integer conferenceId) throws IOException {
+        conferenceService.delete(conferenceId);
+        return String.format(REDIRECT_TO, CONFERENCES_PAGE);
+    }
+
    @PostMapping(value = "/conference", params = "save")
    public String save(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
        filterEmptyDeadlines(conferenceDto);
@ -76,17 +81,10 @@ public class ConferenceController {
        }
        conferenceService.save(conferenceDto);
        return String.format(REDIRECT_TO, CONFERENCES_PAGE);
-
-    }
-
-    @GetMapping("/delete/{conference-id}")
-    public String delete(@PathVariable("conference-id") Integer conferenceId) throws IOException {
-        conferenceService.delete(conferenceId);
-        return String.format(REDIRECT_TO, CONFERENCES_PAGE);
    }

    @PostMapping(value = "/conference", params = "addDeadline")
-    public String addDeadline(@Valid ConferenceDto conferenceDto, Errors errors) {
+    public String addDeadline(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
        filterEmptyDeadlines(conferenceDto);
        if (errors.hasErrors()) {
            return CONFERENCE_PAGE;
@ -105,6 +103,16 @@ public class ConferenceController {
        return CONFERENCE_PAGE;
    }

+    @PostMapping(value = "/conference", params = "addPaper")
+    public String addPaper(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
+        if (errors.hasErrors()) {
+            return CONFERENCE_PAGE;
+        }
+        conferenceService.addPaper(conferenceDto);
+
+        return CONFERENCE_PAGE;
+    }
+
    @PostMapping(value = "/conference", params = "removePaper")
    public String removePaper(@Valid ConferenceDto conferenceDto, Errors errors,
                              @RequestParam(value = "removePaper") Integer paperIndex) throws IOException {
--- a/src/main/java/ru/ulstu/conference/model/Conference.java
+++ b/src/main/java/ru/ulstu/conference/model/Conference.java
@ -53,7 +53,7 @@ public class Conference extends BaseEntity {
    @OrderBy("date")
    private List<Deadline> deadlines = new ArrayList<>();

-    @ManyToMany(fetch = FetchType.EAGER)
+    @ManyToMany(cascade = CascadeType.MERGE, fetch = FetchType.EAGER)
    @JoinTable(name = "paper_conference",
            joinColumns = {@JoinColumn(name = "conference_id")},
            inverseJoinColumns = {@JoinColumn(name = "paper_id")})
--- a/src/main/java/ru/ulstu/conference/model/ConferenceFilterDto.java
+++ b/src/main/java/ru/ulstu/conference/model/ConferenceFilterDto.java
@ -11,14 +11,14 @@ public class ConferenceFilterDto {
    public ConferenceFilterDto() {
    }

-    public ConferenceFilterDto(List<ConferenceDto> conferenceDtos, Integer filterUserId, Integer year) {
-        this.conferences = conferenceDtos;
+    public ConferenceFilterDto(List<ConferenceDto> conferences, Integer filterUserId, Integer year) {
+        this.conferences = conferences;
        this.filterUserId = filterUserId;
        this.year = year;
    }

-    public ConferenceFilterDto(List<ConferenceDto> conferenceDtos) {
-        this(conferenceDtos, null, null);
+    public ConferenceFilterDto(List<ConferenceDto> conferences) {
+        this(conferences, null, null);
    }

    public List<ConferenceDto> getConferences() {
--- a/src/main/java/ru/ulstu/conference/repository/ConferenceRepository.java
+++ b/src/main/java/ru/ulstu/conference/repository/ConferenceRepository.java
@ -16,4 +16,7 @@ public interface ConferenceRepository extends JpaRepository<Conference, Integer>

    @Query("SELECT c FROM Conference c WHERE c.beginDate > :date")
    List<Conference> findAllActive(@Param("date") Date date);
+
+    @Query("SELECT case when count(c) > 0 then true else false end FROM Conference c JOIN c.papers p WHERE p.id = :paperId")
+    boolean isPaperAttached(@Param("paperId") Integer paperId);
 }
--- a/src/main/java/ru/ulstu/conference/service/ConferenceService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
@ -111,9 +111,19 @@ public class ConferenceService {
        conferenceDto.getDeadlines().remove((int) deadlineIndex);
    }

+    public void addPaper(ConferenceDto conferenceDto) {
+        Paper paper = new Paper();
+        paper.setTitle(userService.getCurrentUser().getLastName() + "_" + conferenceDto.getTitle() + "_" + (new Date()).getTime());
+        paper.setStatus(Paper.PaperStatus.DRAFT);
+
+        conferenceDto.getPapers().add(paper);
+    }
+
    public void removePaper(ConferenceDto conferenceDto, Integer paperIndex) throws IOException {
        Paper removedPaper = conferenceDto.getPapers().remove((int) paperIndex);
-        conferenceDto.getNotSelectedPapers().add(removedPaper);
+        if (removedPaper.getId() != null) {
+            conferenceDto.getNotSelectedPapers().add(removedPaper);
+        }
    }

    public void takePart(ConferenceDto conferenceDto) throws IOException {
@ -144,12 +154,13 @@ public class ConferenceService {
        conference.setPing(0);
        conference.setBeginDate(conferenceDto.getBeginDate());
        conference.setEndDate(conferenceDto.getEndDate());
-        conference.setPapers(conferenceDto.getPapers());
+        conference.getPapers().clear();
+        conferenceDto.getPapers().forEach(paper -> conference.getPapers().add(paper.getId() != null ? paperService.findPaperById(paper.getId()) : paperService.create(paper)));
        conference.setDeadlines(deadlineService.saveOrCreate(conferenceDto.getDeadlines()));
        conference.setUsers(conferenceUserService.saveOrCreate(conferenceDto.getUsers()));
        if (conferenceDto.getPaperIds() != null && !conferenceDto.getPaperIds().isEmpty()) {
            conferenceDto.getPaperIds().forEach(paperId ->
-                    conference.getPapers().add(paperService.findEntityById(paperId)));
+                    conference.getPapers().add(paperService.findPaperById(paperId)));
        }
        return conference;
    }
@ -173,4 +184,8 @@ public class ConferenceService {
    public List<Conference> findAllActive() {
        return conferenceRepository.findAllActive(new Date());
    }
+
+    public boolean isAttachedToConference(Integer paperId) {
+        return conferenceRepository.isPaperAttached(paperId);
+    }
 }
--- a/src/main/java/ru/ulstu/core/controller/AdviceController.java
+++ b/src/main/java/ru/ulstu/core/controller/AdviceController.java
@ -39,6 +39,11 @@ public class AdviceController {
        return userService.getCurrentUser().getUserAbbreviate();
    }

+    @ModelAttribute("flashMessage")
+    public String getFlashMessage() {
+        return null;
+    }
+
    private Response<Void> handleException(ErrorConstants error) {
        log.warn(error.toString());
        return new Response<>(error);
--- a/src/main/java/ru/ulstu/paper/controller/PaperController.java
+++ b/src/main/java/ru/ulstu/paper/controller/PaperController.java
@ -8,14 +8,14 @@ import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
+import ru.ulstu.conference.service.ConferenceService;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.model.PaperDto;
-import ru.ulstu.paper.model.PaperFilterDto;
+import ru.ulstu.paper.model.PaperListDto;
 import ru.ulstu.paper.service.LatexService;
 import ru.ulstu.paper.service.PaperService;
 import ru.ulstu.user.model.User;
@ -38,23 +38,34 @@ import static org.springframework.util.StringUtils.isEmpty;
@ApiIgnore
 public class PaperController {
    private final PaperService paperService;
+    private final ConferenceService conferenceService;
    private final LatexService latexService;

-    public PaperController(PaperService paperService, LatexService latexService) {
+    public PaperController(PaperService paperService,
+                           ConferenceService conferenceService,
+                           LatexService latexService) {
        this.paperService = paperService;
+        this.conferenceService = conferenceService;
        this.latexService = latexService;
    }

    @GetMapping("/papers")
    public void getPapers(ModelMap modelMap) {
-        modelMap.put("filteredPapers", new PaperFilterDto(paperService.findAllDto(), null, null));
+        modelMap.put("filteredPapers", new PaperListDto(paperService.findAllDto(), null, null));
    }

    @PostMapping("/papers")
-    public void filterPapers(@Valid PaperFilterDto paperFilterDto, ModelMap modelMap) {
-        modelMap.put("filteredPapers", new PaperFilterDto(paperService.filter(paperFilterDto),
-                paperFilterDto.getFilterAuthorId(),
-                paperFilterDto.getYear()));
+    public void listPapers(@Valid PaperListDto paperListDto, ModelMap modelMap) {
+        if (paperListDto.getPaperDeleteId() != null) {
+            if (conferenceService.isAttachedToConference(paperListDto.getPaperDeleteId())) {
+                modelMap.put("flashMessage", "Статью нельзя удалить, она прикреплена к конференции");
+            } else {
+                paperService.delete(paperListDto.getPaperDeleteId());
+            }
+        }
+        modelMap.put("filteredPapers", new PaperListDto(paperService.filter(paperListDto),
+                paperListDto.getFilterAuthorId(),
+                paperListDto.getYear()));
    }

    @GetMapping("/dashboard")
@ -94,12 +105,6 @@ public class PaperController {
        return "/papers/paper";
    }

-    @GetMapping("/delete/{paper-id}")
-    public String delete(@PathVariable("paper-id") Integer paperId) throws IOException {
-        paperService.delete(paperId);
-        return "redirect:/papers/papers";
-    }
-
    @ModelAttribute("allStatuses")
    public List<Paper.PaperStatus> getPaperStatuses() {
        return paperService.getPaperStatuses();
--- a/src/main/java/ru/ulstu/paper/controller/PaperRestController.java
+++ b/src/main/java/ru/ulstu/paper/controller/PaperRestController.java
@ -11,7 +11,7 @@ import org.springframework.web.bind.annotation.RestController;
 import ru.ulstu.configuration.Constants;
 import ru.ulstu.core.model.response.Response;
 import ru.ulstu.paper.model.PaperDto;
-import ru.ulstu.paper.model.PaperFilterDto;
+import ru.ulstu.paper.model.PaperListDto;
 import ru.ulstu.paper.service.PaperService;

 import javax.validation.Valid;
@ -58,8 +58,8 @@ public class PaperRestController {
    }

    @PostMapping("/filter")
-    public Response<List<PaperDto>> filter(@RequestBody @Valid PaperFilterDto paperFilterDto) throws IOException {
-        return new Response<>(paperService.filter(paperFilterDto));
+    public Response<List<PaperDto>> filter(@RequestBody @Valid PaperListDto paperListDto) throws IOException {
+        return new Response<>(paperService.filter(paperListDto));
    }

    @GetMapping("formatted-list")
--- a/src/main/java/ru/ulstu/paper/error/PaperConferenceRelationExistException.java
+++ b/src/main/java/ru/ulstu/paper/error/PaperConferenceRelationExistException.java
@ -0,0 +1,7 @@
+package ru.ulstu.paper.error;
+
+public class PaperConferenceRelationExistException extends RuntimeException {
+    public PaperConferenceRelationExistException(String message) {
+        super(message);
+    }
+}
--- a/src/main/java/ru/ulstu/paper/model/PaperFilterDto.java
+++ b/src/main/java/ru/ulstu/paper/model/PaperFilterDto.java
@ -2,15 +2,16 @@ package ru.ulstu.paper.model;

 import java.util.List;

-public class PaperFilterDto {
+public class PaperListDto {
    private List<PaperDto> papers;
    private Integer filterAuthorId;
+    private Integer paperDeleteId;
    private Integer year;

-    public PaperFilterDto() {
+    public PaperListDto() {
    }

-    public PaperFilterDto(List<PaperDto> paperDtos, Integer filterAuthorId, Integer year) {
+    public PaperListDto(List<PaperDto> paperDtos, Integer filterAuthorId, Integer year) {
        this.papers = paperDtos;
        this.filterAuthorId = filterAuthorId;
        this.year = year;
@ -39,4 +40,12 @@ public class PaperFilterDto {
    public void setYear(Integer year) {
        this.year = year;
    }
+
+    public Integer getPaperDeleteId() {
+        return paperDeleteId;
+    }
+
+    public void setPaperDeleteId(Integer paperDeleteId) {
+        this.paperDeleteId = paperDeleteId;
+    }
 }
--- a/src/main/java/ru/ulstu/paper/service/PaperService.java
+++ b/src/main/java/ru/ulstu/paper/service/PaperService.java
@ -9,7 +9,7 @@ import ru.ulstu.file.model.FileDataDto;
 import ru.ulstu.file.service.FileService;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.model.PaperDto;
-import ru.ulstu.paper.model.PaperFilterDto;
+import ru.ulstu.paper.model.PaperListDto;
 import ru.ulstu.paper.repository.PaperRepository;
 import ru.ulstu.timeline.service.EventService;
 import ru.ulstu.user.model.User;
@ -93,6 +93,14 @@ public class PaperService {
        return newPaper.getId();
    }

+    @Transactional
+    public Paper create(Paper paper) {
+        Paper newPaper = paperRepository.save(paper);
+        paperNotificationService.sendCreateNotification(newPaper);
+        eventService.createFromPaper(newPaper);
+        return newPaper;
+    }
+
    private Paper copyFromDto(Paper paper, PaperDto paperDto) throws IOException {
        paper.setComment(paperDto.getComment());
        paper.setUrl(paperDto.getUrl());
@ -173,7 +181,7 @@ public class PaperService {
        return paper;
    }

-    public List<PaperDto> filter(PaperFilterDto filterDto) {
+    public List<PaperDto> filter(PaperListDto filterDto) {
        return convert(sortPapers(paperRepository.filter(
                filterDto.getFilterAuthorId() == null ? null : userService.findById(filterDto.getFilterAuthorId()),
                filterDto.getYear())), PaperDto::new);
@ -223,7 +231,7 @@ public class PaperService {
        return new PaperDto(paperRepository.findOne(paperId));
    }

-    public Paper findEntityById(Integer paperId) {
+    public Paper findPaperById(Integer paperId) {
        return paperRepository.findOne(paperId);
    }

--- a/src/main/resources/public/css/conference.css
+++ b/src/main/resources/public/css/conference.css
@ -2,8 +2,8 @@ body {
    min-width: 400px;
 }

-.conference-row .col:hover {
-    background-color: #f3f3f3;
+.conference-row .d-flex:hover {
+    background-color: #f1f1f1;
    border-radius: .25rem;
 }

@ -15,10 +15,20 @@ body {
    margin-bottom: 10px;
 }

-.conference-row .col .text-decoration {
+.conference-row .d-flex .text-decoration {
    text-decoration: none;
 }

+.conference-row .d-flex .text-decoration:nth-child(1) {
+    margin-left: 10px;
+}
+
+
+
+.conference-row .d-flex {
+    margin: 0 15px;
+}
+

 .form-group textarea {
    min-height: 206px;
@ -61,13 +71,17 @@ body {
    padding: 0.5rem 1.75em 0.5rem 0.5em;
    display: inline-block;
    background: transparent url("https://cdn3.iconfinder.com/data/icons/faticons/32/arrow-down-01-16.png") no-repeat right 7px center;
-
+    cursor: pointer;
 }

 .member select:nth-child(4) {
    border-right: 1px solid #ced4da;
 }

+.member select:hover {
+    background-color: #f1f1f1;
+}
+

 .member-name {
    padding: .75rem 1.25rem;
@ -104,11 +118,22 @@ body {
    flex: 1;
 }

+.paper-name:hover {
+    background-color: #f1f1f1;
+}
+
 .paper-name span {
-    margin: 6px 15px;
+    margin: 7px 10px;
    display: inline-block;
 }

+.paper-name span:nth-child(1) {
+    margin: 3px 0px 3px 10px;
+    float: left;
+}
+
+
+
 .icon {
    width: 38px;
    height: 38px;
@ -117,14 +142,14 @@ body {
 }

 .icon-delete {
-    background-color: #f44;
+    background-color: #ff7272;
    background-image: url(/img/conference/delete.png);
    background-repeat: round;
    color: transparent !important;
 }

 .icon-delete:hover {
-    background-color: #ff2929;
+    background-color: #ff0000;
    transition: background-color .15s ease-in-out;
 }

--- a/src/main/resources/public/js/conference.js
+++ b/src/main/resources/public/js/conference.js
@ -1,7 +1,6 @@
 $(document).ready(function () {
-
-    $('a[data-confirm]').click(function(ev) {
-        var href = $(this).attr('href');
+    $('input[data-confirm]').click(function(ev) {
+        var value = $(this).attr('value');
        if (!$('#dataConfirmModal').length) {
            $('#modalDelete').append('<div class="modal fade" id="dataConfirmModal"  tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true"\n' +
                '             >\n' +
@ -14,7 +13,7 @@ $(document).ready(function () {
                '                    </div>\n' +

                '                    <div class="modal-footer">\n' +
-                '                       <a class="btn btn-primary" id="dataConfirmOK">Да</a>'+
+                '                       <button type="submit" name="deleteConference" class="btn btn-primary" id="deleteConference">Да</button>'+
                '                       <button class="btn primary" data-dismiss="modal" aria-hidden="true">Нет</button>'+
                '                    </div>\n' +
                '                </div>\n' +
@ -22,7 +21,7 @@ $(document).ready(function () {
                '        </div>');
        }
        $('#dataConfirmModal').find('#myModalLabel').text($(this).attr('data-confirm'));
-        $('#dataConfirmOK').attr('href', href);
+        $('#deleteConference').attr('value', value);
        $('#dataConfirmModal').modal({show:true});
        return false;
    });
--- a/src/main/resources/public/js/papers.js
+++ b/src/main/resources/public/js/papers.js
@ -13,7 +13,8 @@ $(document).ready(function () {
    });

    $('a[data-confirm]').click(function(ev) {
-        var href = $(this).attr('href');
+        var id = $(this).parent().parent().find('.id-class').val();
+
        if (!$('#dataConfirmModal').length) {
            $('#modalDelete').append('<div class="modal fade" id="dataConfirmModal"  tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true"\n' +
                '             >\n' +
@ -34,7 +35,10 @@ $(document).ready(function () {
                '        </div>');
        }
        $('#dataConfirmModal').find('#myModalLabel').text($(this).attr('data-confirm'));
-        $('#dataConfirmOK').attr('href', href);
+        $('#dataConfirmOK').click(function () {
+            $("#paperDeleteId").val(id);
+            $('form').submit();
+        });
        $('#dataConfirmModal').modal({show:true});
        return false;
    });
--- a/src/main/resources/templates/conferences/conference.html
+++ b/src/main/resources/templates/conferences/conference.html
@ -131,11 +131,24 @@
                                <div class="form-group">
                                    <label for="papers">Статьи:</label>
                                    <div class="paper-list form-control list-group" id="papers">
-                                        <input th:type="hidden" th:field="*{papers}"/>
+                                        <!--<input th:type="hidden" th:field="*{papers}"/>-->
                                        <div class="paper d-flex list-group-item p-0"
                                             th:each="paper, rowStat : *{papers}">
+                                            <input type="hidden" th:field="*{papers[__${rowStat.index}__].id}"/>
+                                            <input type="hidden" th:field="*{papers[__${rowStat.index}__].title}"/>
+                                            <input type="hidden" th:field="*{papers[__${rowStat.index}__].status}"/>
                                            <a class="paper-name"
-                                               th:href="@{'/papers/paper?id=' + *{papers[__${rowStat.index}__].id} + ''}">
+                                               th:href="@{'/papers/paper?id=' + *{papers[__${rowStat.index}__].id} + ''}"
+                                               th:if="*{papers[__${rowStat.index}__].id !=null}">
+                                                <span th:replace="papers/fragments/paperStatusFragment :: paperStatus(paperStatus=*{papers[__${rowStat.index}__].status})"/>
+                                                <span th:text="*{papers[__${rowStat.index}__].title}">
+                                                    Имя статьи
+                                                </span>
+
+                                                <!--<img class="icon-paper" src="/img/conference/paper.png"/>-->
+                                            </a>
+                                            <a class="paper-name"
+                                               th:unless="*{papers[__${rowStat.index}__].id !=null}">
                                                <span th:text="*{papers[__${rowStat.index}__].title}">
                                                    Имя статьи
                                                </span>
@ -156,7 +169,7 @@
                                        </option>
                                    </select>
                                    <button id="add-paper" class="btn btn-primary"
-                                            type="button">
+                                            type="submit" name="addPaper">
                                        Добавить статью
                                    </button>
                                </div>
--- a/src/main/resources/templates/conferences/conferences.html
+++ b/src/main/resources/templates/conferences/conferences.html
@ -8,7 +8,9 @@
 <body>

 <div layout:fragment="content">
-    <form id="conferences-form" method="post" th:action="@{'/conferences/conferences'}">
+    <form id="conferences-form" method="post" th:action="@{'/conferences/conferences'}"
+          th:object="${filteredConferences}">
+
        <section id="conferences">
            <div class="container">
                <div class="row" id="conference-list">
@ -18,9 +20,12 @@
                    </div>
                </div>
                <hr/>
+                <div class="alert alert-danger" th:if="${#fields.hasErrors('*')}">
+                    <p th:each="err : ${#fields.errors('*')}" th:text="${err}"></p>
+                </div>
                <div class="row">
                    <div class="col-md-9 col-sm-12">
-                        <th:block th:each="conference : ${filteredConferences.conferences}">
+                        <th:block th:each="conference : *{conferences}">
                            <div th:replace="conferences/fragments/confLineFragment :: confLine(conference=${conference})"/>
                        </th:block>
                    </div>
--- a/src/main/resources/templates/conferences/fragments/confLineFragment.html
+++ b/src/main/resources/templates/conferences/fragments/confLineFragment.html
@ -5,16 +5,19 @@
 </head>
 <body>
 <div th:fragment="confLine (conference)" class="row text-left conference-row h3" style="background-color: white;">
-    <div class="col d-flex justify-content-between">
+    <div class="d-flex justify-content-between w-100">
        <a th:href="@{'conference?id='+${conference.id}}" class="w-100 text-decoration">
            <span class="h5" th:text="${conference.title}"/>
            <span class="text-muted h6 float-right m-2" th:text="${conference.datesString}"/>
        </a>
        <input class="id-class" type="hidden" th:value="${conference.id}"/>
-        <a class="remove-paper pull-right m-auto" th:href="@{'/conferences/delete/'+${conference.id}}"
-           data-confirm="Удалить конференцию?">
-            <i class="fa fa-trash" aria-hidden="true"></i>
-        </a>
+        <input type="submit" class="icon icon-delete grey-border"
+               alt="Удалить" th:value="${conference.id}"
+               data-confirm="Удалить конференцию?"/>
+        <!--<a class="remove-paper pull-right m-auto" th:href="@{'/conferences/delete/'+${conference.id}}"-->
+        <!--data-confirm="Удалить конференцию?">-->
+        <!--<i class="fa fa-trash" aria-hidden="true"></i>-->
+        <!--</a>-->
    </div>
 </div>

--- a/src/main/resources/templates/default.html
+++ b/src/main/resources/templates/default.html
@ -55,7 +55,8 @@
                    <a class="nav-link js-scroll-trigger" target="_blank" href="http://is.ulstu.ru">Сайт кафедры</a>
                </li>
                <li class="nav-item">
-                    <a class="nav-link js-scroll-trigger" target="_blank" th:href="@{'http://timetable.athene.tech?filter='+${currentUser}}">Расписание</a>
+                    <a class="nav-link js-scroll-trigger" target="_blank"
+                       th:href="@{'http://timetable.athene.tech?filter='+${currentUser}}">Расписание</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link js-scroll-trigger" target="_blank" href="https://kias.rfbr.ru/">КИАС РФФИ</a>
@ -97,36 +98,53 @@
 <script src="/js/core.js"></script>
 <script src="/js/config.js"></script>
 <script src="/js/odin.js"></script>
+<script th:inline="javascript">
+
+    /*<![CDATA[*/
+    var message = /*[[${flashMessage}]]*/ "";
+    if (message && message.length > 0) {
+        showFeedbackMessage(message, MessageTypesEnum.DANGER);
+    }
+    /*]]>*/
+
+</script>
 <th:block layout:fragment="scripts">
 </th:block>
 <!-- Yandex.Metrika counter -->
-<script type="text/javascript" >
+<script type="text/javascript">
    (function (d, w, c) {
-        (w[c] = w[c] || []).push(function() {
+        (w[c] = w[c] || []).push(function () {
            try {
                w.yaCounter49387279 = new Ya.Metrika2({
-                    id:49387279,
-                    clickmap:true,
-                    trackLinks:true,
-                    accurateTrackBounce:true,
-                    webvisor:true
+                    id: 49387279,
+                    clickmap: true,
+                    trackLinks: true,
+                    accurateTrackBounce: true,
+                    webvisor: true
                });
-            } catch(e) { }
+            } catch (e) {
+            }
        });

        var n = d.getElementsByTagName("script")[0],
            s = d.createElement("script"),
-            f = function () { n.parentNode.insertBefore(s, n); };
+            f = function () {
+                n.parentNode.insertBefore(s, n);
+            };
        s.type = "text/javascript";
        s.async = true;
        s.src = "https://mc.yandex.ru/metrika/tag.js";

        if (w.opera == "[object Opera]") {
            d.addEventListener("DOMContentLoaded", f, false);
-        } else { f(); }
+        } else {
+            f();
+        }
    })(document, window, "yandex_metrika_callbacks2");
 </script>
-<noscript><div><img src="https://mc.yandex.ru/watch/49387279" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
+<noscript>
+    <div><img src="https://mc.yandex.ru/watch/49387279" style="position:absolute; left:-9999px;" alt=""/></div>
+</noscript>
 <!-- /Yandex.Metrika counter -->
 </body>
 </html>
--- a/src/main/resources/templates/papers/fragments/paperLineFragment.html
+++ b/src/main/resources/templates/papers/fragments/paperLineFragment.html
@ -12,8 +12,7 @@
            <span class="text-muted" th:text="${paper.authorsString}"/>
        </a>
        <input class="id-class" type="hidden" th:value="${paper.id}"/>
-        <a class="remove-paper pull-right d-none" th:href="@{'/papers/delete/'+${paper.id}}"
-           data-confirm="Удалить статью?">
+        <a class="remove-paper pull-right d-none" href="#" data-confirm="Удалить статью?">
            <i class="fa fa-trash" aria-hidden="true"></i>
        </a>
    </div>
--- a/src/main/resources/templates/papers/papers.html
+++ b/src/main/resources/templates/papers/papers.html
@ -7,7 +7,8 @@
 <body>

 <div class="container" layout:fragment="content">
-    <form id="papers-form" method="post" th:action="@{'/papers/papers'}">
+    <form id="papers-form" method="post" th:action="@{'/papers/papers'}"
+          th:object="${filteredPapers}">
        <input th:type="hidden" name="paperDeleteId" id="paperDeleteId"/>
        <section id="papers">
            <div class="container">
@ -17,7 +18,11 @@
                        <div th:replace="papers/fragments/paperNavigationFragment"/>
                    </div>
                </div>
+
                <div class="row">
+                    <div class="alert alert-danger" th:if="${#fields.hasErrors('*')}">
+                        <p th:each="err : ${#fields.errors('*')}" th:text="${err}"></p>
+                    </div>
                    <div class="col-md-9 col-sm-12">
                        <th:block th:each="paper : ${filteredPapers.papers}">
                            <div th:replace="papers/fragments/paperLineFragment :: paperLine(paper=${paper})"/>
@ -43,7 +48,7 @@
                        </div>
                    </div>
                </div>
-                <div th:replace="fragments/noRecordsFragment :: noRecords(entities=${filteredPapers.papers}, noRecordsMessage=' одной статьи', url='paper')"/>
+                <!--<div th:replace="fragments/noRecordsFragment :: noRecords(entities=${filteredPapers.papers}, noRecordsMessage=' одной статьи', url='paper')"/>-->
            </div>
        </section>