create new doucments, show tags

src/main/kotlin/wanijo/wanijo2/domain/document.kt

@@ -17,12 +17,7 @@ data class Document(
     val createdAt: ZonedDateTime = ZonedDateTime.now(),
     val labelFields: Set<LabelField> = emptySet(),
     val dateFields: Set<DateField> = emptySet(),
-) {
+)
-
-    @Transient
-    val tags: Set<Tag> = emptySet()
-
-}
 
 interface DocumentDao: Repository<Document, Int> {
     fun findAll(): List<Document>

src/main/kotlin/wanijo/wanijo2/domain/event/NewDocumentCommand.kt

@@ -0,0 +1,11 @@
+package wanijo.wanijo2.domain.event
+
+import jakarta.validation.constraints.NotEmpty
+
+data class NewDocumentCommand(
+    @NotEmpty
+    val name: String = "",
+    val description: String = "",
+    val tagIds: List<Long> = emptyList(),
+    val newTags: String = ""
+)

src/main/kotlin/wanijo/wanijo2/domain/handler/NewDocumentCommandHandler.kt

@@ -0,0 +1,49 @@
+package wanijo.wanijo2.domain.handler
+
+import org.springframework.stereotype.Service
+import wanijo.wanijo2.domain.Document
+import wanijo.wanijo2.domain.DocumentDao
+import wanijo.wanijo2.domain.DocumentTagging
+import wanijo.wanijo2.domain.DocumentTaggingDao
+import wanijo.wanijo2.domain.Tag
+import wanijo.wanijo2.domain.TagDao
+import wanijo.wanijo2.domain.event.NewDocumentCommand
+
+@Service
+class NewDocumentCommandHandler(
+    val tagDao: TagDao,
+    val documentDao: DocumentDao,
+    val documentTaggingDao: DocumentTaggingDao
+) {
+
+    fun exec(event: NewDocumentCommand): Document {
+        val document = documentDao.save(
+            Document(
+                name = event.name,
+                description = event.description
+            )
+        )
+
+        val tags = event.newTags
+            .split(",")
+            .map { it.trim() }
+            .map { it to tagDao.findByName(it) }
+            .map { (name, tag) ->
+                if (tag == null) {
+                    tagDao.save(Tag(name = name))
+                } else {
+                    tag
+                }
+            }
+
+        val tagIdsToAttach = tags.map { it.id } + event.tagIds
+        tagIdsToAttach.forEach {
+            documentTaggingDao.save(
+                DocumentTagging.between(document, it)
+            )
+        }
+
+        return document
+    }
+
+}

src/main/kotlin/wanijo/wanijo2/domain/tag.kt

@@ -2,6 +2,7 @@ package wanijo.wanijo2.domain
 
 import org.springframework.data.annotation.Id
 import org.springframework.data.jdbc.core.mapping.AggregateReference
+import org.springframework.data.jdbc.repository.query.Query
 import org.springframework.data.relational.core.mapping.Table
 import org.springframework.data.repository.Repository
 import java.time.ZonedDateTime
@@ -20,14 +21,34 @@ data class DocumentTagging(
     val id: Long = 0,
     val tagId: AggregateReference<Tag, Long>,
     val documentId: AggregateReference<Document, Long>
-)
+) {
+    companion object {
+        fun between(doc: Document, tagId: Long) =
+            DocumentTagging(
+                tagId = AggregateReference.to(tagId),
+                documentId = AggregateReference.to(doc.id)
+            )
+    }
+}
 
 interface DocumentTaggingDao : Repository<DocumentTagging, Long> {
     fun save(tagging: DocumentTagging)
 }
 
-interface TagDao: Repository<Tag, Long> {
+interface TagDao : Repository<Tag, Long> {
     fun save(tag: Tag): Tag
     fun findByName(name: String): Tag?
-    fun findAll(): List<Tag>
+    fun findAll(): Set<Tag>
+    @Query(
+        """
+            SELECT tag.*
+              FROM t_tag tag
+              JOIN t_document_tagging tdt
+                ON tag.id = tdt.tag_id
+              JOIN t_document td
+                ON tdt.document_id = td.id
+             WHERE td.id = :documentId
+        """
+    )
+    fun ofDocument(documentId: Long): Set<Tag>
 }

src/main/kotlin/wanijo/wanijo2/http/controller/NewController.kt

@@ -9,12 +9,14 @@ import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestMapping
 import wanijo.wanijo2.domain.TagDao
-import wanijo.wanijo2.http.form.NewForm
+import wanijo.wanijo2.domain.event.NewDocumentCommand
+import wanijo.wanijo2.domain.handler.NewDocumentCommandHandler
 
 @Controller
 @RequestMapping("/document")
 class NewController(
-    private val tagDao: TagDao
+    private val tagDao: TagDao,
+    private val newDocumentCommandHandler: NewDocumentCommandHandler,
 ) {
 
     @GetMapping("/new")
@@ -22,22 +24,24 @@ class NewController(
         model: Model
     ): String {
         model["tags"] = tagDao.findAll()
-        model["form"] = NewForm()
+        model["form"] = NewDocumentCommand()
         return "new"
     }
 
     @PostMapping("/new")
     fun saveNewDocument(
-        model: Model,
         @Valid
-        newForm: NewForm,
+        newDocument: NewDocumentCommand,
+        model: Model,
         bindingResult: BindingResult
     ): String {
         if (bindingResult.hasErrors()) {
             return newDocument(model)
         }
 
-        return "redirect:/"
+        val doc = newDocumentCommandHandler.exec(newDocument)
+
+        return "redirect:/document/${doc.id}"
     }
 
 }

src/main/kotlin/wanijo/wanijo2/http/controller/ShowController.kt

@@ -8,11 +8,13 @@ import org.springframework.ui.set
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PathVariable
 import wanijo.wanijo2.domain.DocumentDao
+import wanijo.wanijo2.domain.TagDao
 import wanijo.wanijo2.http.DocumentNotFound
 
 @Controller
 class ShowController(
-    private val docDao: DocumentDao
+    val docDao: DocumentDao,
+    val tagDao: TagDao
 ) {
 
     @GetMapping("/document/{id}")
@@ -23,6 +25,8 @@ class ShowController(
         val document = docDao.findById(id) ?: throw DocumentNotFound()
         model["document"] = document
 
+        model["tags"] = tagDao.ofDocument(id)
+
         val descHtml = Parser.builder().build().parse(document.description).let {
             HtmlRenderer.builder().build().render(it)
         }

src/main/kotlin/wanijo/wanijo2/http/form/NewForm.kt

@@ -1,10 +0,0 @@
-package wanijo.wanijo2.http.form
-
-import jakarta.validation.constraints.NotEmpty
-
-data class NewForm (
-    @NotEmpty
-    val name: String = "",
-    val description: String = "",
-    val tagIds: List<Long> = emptyList()
-)

src/main/resources/static/stylesheet.css

@@ -29,8 +29,25 @@ main {
         font-size: 90%;
     }
 
+    .show__tags {
+        ul {
+            list-style-type: none;
+            margin: 0;
+            padding: 0;
+
+            display: flex;
+            justify-content: space-evenly;
+
+            li {
+                border-left: .5rem solid AccentColor;
+                padding-left: .5rem;
+            }
+        }
+    }
+
     fieldset {
         border: 1px solid AccentColor;
+        margin-bottom: 1rem;
     }
 }
 
@@ -56,13 +73,13 @@ form {
     display: grid;
     grid-template-columns: 30% 70%;
     grid-auto-flow: row;
-    row-gap: .5rem;
+    row-gap: 1rem;
 
     label {
         grid-column: 1;
     }
 
-    input, textarea, select, button {
+    input, textarea, select, button, .form__widget {
         grid-column: 2;
     }
 

src/main/resources/templates/new.html

@@ -15,10 +15,17 @@
                 <label for="description">beschreibung</label>
                 <textarea id="description" th:field="*{description}"></textarea>
 
+                <div class="form__widget" th:each="tag : ${tags}">
+                    <label>
+                        <input type="checkbox"
+                               th:field="*{tagIds}"
+                               th:value="${tag.id}">
+                        <th:block th:text="${tag.name}"/>
+                    </label>
+                </div>
+
                 <label for="tags">tags</label>
-                <select multiple th:field="*{tagIds}" id="tags">
+                <input id="tags" type="text" th:field="*{newTags}">
-                    <option th:each="tag: ${tags}" th:value="${tag.id}" th:text="${tag.name}"></option>
-                </select>
 
                 <button type="submit">
                     anlegen

src/main/resources/templates/show.html

@@ -31,6 +31,14 @@
                 </span>
             </fieldset>
 
+            <fieldset class="show__tags">
+                <legend>tags</legend>
+
+                <ul>
+                    <li th:each="tag : ${tags}" th:text="${tag.name}"></li>
+                </ul>
+            </fieldset>
+
             <fieldset>
                 <legend>beschreibung</legend>
                 <div class="show__markdown" th:utext="${descHtml}"></div>