feat: negative tag search

pkg/app/tag_routes.go

@@ -70,7 +70,10 @@ func tagGetRelated(c *gin.Context) {
 }
 
 func tagAutocomplete(c *gin.Context) {
-	tags := services.GetTagAutocomplete()
+	tagParam := c.Query("tag")
+	positiveParam := c.Query("positive")
+
+	tags := services.GetTagAutocomplete(tagParam, positiveParam != "")
 	c.JSON(http.StatusOK, tags)
 }
 

pkg/services/post.go

@@ -2,6 +2,7 @@ package services
 
 import (
 	"fmt"
+	"strings"
 
 	"github.com/Damillora/Shioriko/pkg/database"
 	"github.com/Damillora/Shioriko/pkg/models"
@@ -17,36 +18,74 @@ func GetPostAll(page int) []database.Post {
 }
 
 func GetPostTags(page int, tagSyntax []string) []database.Post {
-	tags, err := ParseReadTags(tagSyntax)
+	positiveTagSyntax := []string{}
+	negativeTagSyntax := []string{}
 
+	for _, tag := range tagSyntax {
+		if strings.HasPrefix(tag, "-") {
+			negativeTagSyntax = append(negativeTagSyntax, strings.TrimPrefix(tag, "-"))
+		} else {
+			positiveTagSyntax = append(positiveTagSyntax, tag)
+
+		}
+	}
+	positiveTags, err := ParseReadTags(positiveTagSyntax)
+	if err != nil {
+		return []database.Post{}
+	}
+	negativeTags, err := ParseReadTags(negativeTagSyntax)
 	if err != nil {
 		return []database.Post{}
 	}
 
-	var tagIds []string
-	for _, tag := range tags {
-		tagIds = append(tagIds, tag.ID)
+	var positiveTagIds []string
+	for _, tag := range positiveTags {
+		positiveTagIds = append(positiveTagIds, tag.ID)
 	}
-	fmt.Printf("%v", tagIds)
 
-	var postIds []string
+	var negativeTagIds []string
+	for _, tag := range negativeTags {
+		negativeTagIds = append(negativeTagIds, tag.ID)
+	}
+
+	var positivePostIds []string
 	database.DB.
-		Model(&tags).
+		Model(&positiveTags).
 		Joins("join post_tags on post_tags.tag_id = tags.id").
 		Select("post_tags.post_id").
-		Where("post_tags.tag_id IN ?", tagIds).
+		Where("post_tags.tag_id IN ?", positiveTagIds).
 		Group("post_tags.post_id").
-		Having("count(*) = ?", len(tagIds)).
+		Having("count(*) = ?", len(positiveTagIds)).
 		Distinct().
-		Find(&postIds)
+		Find(&positivePostIds)
+	var negativePostIds []string
+	database.DB.
+		Model(&positiveTags).
+		Joins("join post_tags on post_tags.tag_id = tags.id").
+		Select("post_tags.post_id").
+		Where("post_tags.tag_id IN ?", negativeTagIds).
+		Group("post_tags.post_id").
+		Having("count(*) = ?", len(negativeTagIds)).
+		Distinct().
+		Find(&negativePostIds)
 
 	var posts []database.Post
-	database.DB.
+	query := database.DB.
 		Joins("Blob").
 		Preload("Tags").
-		Preload("Tags.TagType").
-		Where("posts.id IN ?", postIds).
-		Order("created_at desc").
+		Preload("Tags.TagType")
+
+	if len(positivePostIds) > 0 && len(negativePostIds) > 0 {
+		query = query.
+			Where("posts.id IN ? AND posts.id NOT IN ?", positivePostIds, negativePostIds)
+	} else if len(positivePostIds) > 0 {
+		query = query.
+			Where("posts.id IN ?", positivePostIds)
+	} else if len(negativePostIds) > 0 {
+		query = query.
+			Where("posts.id NOT IN ?", negativePostIds)
+	}
+	query.Order("created_at desc").
 		Offset((page - 1) * perPage).
 		Limit(20).
 		Find(&posts)
@@ -118,28 +157,73 @@ func CountPostPages() int {
 	return int(count)
 }
 func CountPostPagesTag(tagSyntax []string) int {
-	tags, err := ParseReadTags(tagSyntax)
+	positiveTagSyntax := []string{}
+	negativeTagSyntax := []string{}
+
+	for _, tag := range tagSyntax {
+		if strings.HasPrefix(tag, "-") {
+			negativeTagSyntax = append(negativeTagSyntax, strings.TrimPrefix(tag, "-"))
+		} else {
+			positiveTagSyntax = append(positiveTagSyntax, tag)
+
+		}
+	}
+	positiveTags, err := ParseReadTags(positiveTagSyntax)
+	if err != nil {
+		return 0
+	}
+	negativeTags, err := ParseReadTags(negativeTagSyntax)
 	if err != nil {
 		return 0
 	}
 
-	var tagIds []string
-	for _, tag := range tags {
-		tagIds = append(tagIds, tag.ID)
+	var positiveTagIds []string
+	for _, tag := range positiveTags {
+		positiveTagIds = append(positiveTagIds, tag.ID)
 	}
-	fmt.Printf("%v", tagIds)
 
-	var count int64
+	var negativeTagIds []string
+	for _, tag := range negativeTags {
+		negativeTagIds = append(negativeTagIds, tag.ID)
+	}
+
+	var positivePostIds []string
 	database.DB.
-		Model(&tags).
-		Distinct().
+		Model(&positiveTags).
 		Joins("join post_tags on post_tags.tag_id = tags.id").
 		Select("post_tags.post_id").
-		Where("post_tags.tag_id IN ?", tagIds).
+		Where("post_tags.tag_id IN ?", positiveTagIds).
 		Group("post_tags.post_id").
-		Having("count(*) = ?", len(tagIds)).
-		Count(&count)
+		Having("count(*) = ?", len(positiveTagIds)).
+		Distinct().
+		Find(&positivePostIds)
+	var negativePostIds []string
+	database.DB.
+		Model(&positiveTags).
+		Joins("join post_tags on post_tags.tag_id = tags.id").
+		Select("post_tags.post_id").
+		Where("post_tags.tag_id IN ?", negativeTagIds).
+		Group("post_tags.post_id").
+		Having("count(*) = ?", len(negativeTagIds)).
+		Distinct().
+		Find(&negativePostIds)
 
+	var count int64
+	query := database.DB.
+		Model(&database.Post{})
+	if len(positivePostIds) > 0 && len(negativePostIds) > 0 {
+		query = query.
+			Where("posts.id IN ? AND posts.id NOT IN ?", positivePostIds, negativePostIds)
+	} else if len(positivePostIds) > 0 {
+		query = query.
+			Where("posts.id IN ?", positivePostIds)
+	} else if len(negativePostIds) > 0 {
+		query = query.
+			Where("posts.id NOT IN ?", negativePostIds)
+	}
+	query.
+		Count(&count)
+	fmt.Println(count)
 	return int(count)
 }
 

pkg/services/tag.go

@@ -61,12 +61,56 @@ func GetTag(tagString string) (*models.TagReadModel, error) {
 	return &tagModel, nil
 }
 
-func GetTagAutocomplete() []string {
+func GetTagAutocomplete(searchValue string, forcePositive bool) []string {
+	if forcePositive {
+		return getPositiveTagAutocomplete(strings.TrimPrefix(searchValue, "-"))
+	}
+	if strings.HasPrefix(searchValue, "-") {
+		return getNegativeTagAutocomplete(strings.TrimPrefix(searchValue, "-"))
+	} else {
+		return getPositiveTagAutocomplete(searchValue)
+	}
+}
+
+func getPositiveTagAutocomplete(searchValue string) []string {
 	var tags []string
-	result := database.DB.Model(&database.Tag{}).
+	query := database.DB.Model(&database.Tag{}).
 		Joins("join tag_types on tag_types.id = tags.tag_type_id").
-		Select("concat(tag_types.name,':',tags.name) as name").
-		Find(&tags)
+		Select("concat(tag_types.name,':',tags.name) as name")
+
+	tagFields := strings.Split(searchValue, ":")
+	if len(tagFields) == 2 {
+		query = query.
+			Where("tags.name LIKE ?", "%"+tagFields[1]+"%").
+			Where("tag_types.name = ?", tagFields[0])
+	} else if len(tagFields) == 1 {
+		query = query.
+			Where("tags.name LIKE ?", "%"+tagFields[0]+"%")
+	}
+
+	result := query.Find(&tags)
+	if result.Error != nil {
+		return []string{}
+	}
+	return tags
+}
+func getNegativeTagAutocomplete(searchValue string) []string {
+	var tags []string
+	query := database.DB.Model(&database.Tag{}).
+		Joins("join tag_types on tag_types.id = tags.tag_type_id").
+		Select("concat('-',tag_types.name,':',tags.name) as name")
+
+	tagFields := strings.Split(searchValue, ":")
+	if len(tagFields) == 2 {
+		query = query.
+			Where("tags.name LIKE ?", "%"+tagFields[1]+"%").
+			Where("tag_types.name = ?", tagFields[0])
+	} else if len(tagFields) == 1 {
+		query = query.
+			Where("tags.name LIKE ?", "%"+tagFields[0]+"%")
+	}
+
+	result := query.Find(&tags)
 	if result.Error != nil {
 		return []string{}
 	}

web/app/package.json

@@ -18,16 +18,13 @@
     "svelte": "^3.0.0"
   },
   "dependencies": {
-    "@svelte-parts/editor": "^0.0.26",
-    "@tiptap/core": "^2.0.0-beta.174",
-    "@tiptap/starter-kit": "^2.0.0-beta.183",
+    "@rollup/plugin-json": "^4.1.0",
     "axios": "^0.21.1",
     "bulma": "^0.9.2",
     "node-sass": "^6.0.0",
     "postcss": "^8.2.14",
     "query-string": "^7.0.0",
     "sirv-cli": "^1.0.0",
-    "svelte-infinite-scroll": "^1.5.2",
     "svelte-preprocess": "^4.7.3",
     "svelte-routing": "^1.6.0",
     "svelte-tags-input": "^2.7.1"

web/app/rollup.config.js

@@ -1,3 +1,4 @@
+import json from '@rollup/plugin-json';
 import svelte from 'rollup-plugin-svelte';
 import commonjs from '@rollup/plugin-commonjs';
 import resolve from '@rollup/plugin-node-resolve';
@@ -40,6 +41,7 @@ export default {
         entryFileNames: 'bundle.js'
 	},
 	plugins: [
+        json(),
 		svelte({
 			compilerOptions: {
 				// enable run-time checks when not in production

web/app/src/EditPostPanel.svelte

@@ -25,8 +25,8 @@
         form.tags = value.detail.tags;
     };
 
-    const onAutocomplete = async () => {
-        const list = await getTagAutocomplete();
+    const onAutocomplete = async (tag) => {
+        const list = await getTagAutocomplete({ tag, positive: true });
         return list;
     };
 
@@ -97,6 +97,7 @@
                             addKeys={[9, 32]}
                             on:tags={onTagChange}
                             autoComplete={onAutocomplete}
+                            autoCompleteFilter={false}
                         />
                     </div>
                 </div>

web/app/src/api.js

@@ -53,8 +53,11 @@ export async function getRelatedTags({ tag }) {
     const response = await axios.get(endpoint);
     return response.data;
 }
-export async function getTagAutocomplete() {
-    const endpoint = url + "/api/tag-autocomplete";
+export async function getTagAutocomplete({ tag, positive }) {
+    let endpoint = url + "/api/tag-autocomplete?tag=" + tag;
+    if (positive) {
+        endpoint = endpoint + "&positive=true";
+    }
     const response = await axios.get(endpoint);
     return response.data;
 }

web/app/src/components/TagNotes/ViewTagNotesPanel.svelte

@@ -21,9 +21,3 @@
         </div>
     </AuthCheck>
 </div>
-
-<style>
-    .pre-line {
-        white-space: pre-line;
-    }
-</style>

web/app/src/routes/Home.svelte

@@ -9,8 +9,8 @@
     searchTerms = value.detail.tags;
   };
 
-  const onAutocomplete = async () => {
-    const list = await getTagAutocomplete();
+  const onAutocomplete = async (tag) => {
+        const list = await getTagAutocomplete({ tag });
         return list;
     };
 
@@ -41,6 +41,7 @@
                 addKeys={[9, 32]}
                 on:tags={onTagChange}
                 autoComplete={onAutocomplete}
+                autoCompleteFilter={false}
               />
             </div>
           </div>

web/app/src/routes/Post/Posts.svelte

@@ -42,7 +42,7 @@
             pagination = paginate(page, totalPages);
         }
 
-        if (searchTerms.length == 1) {
+        if (searchTerms.filter(x => !x.startsWith("-")).length == 1) {
             tagInfo = await getTag({ tag: searchTerms[0] });
         }
     };
@@ -52,8 +52,8 @@
         searchTerms = value.detail.tags;
     };
 
-    const onAutocomplete = async () => {
-        const list = await getTagAutocomplete();
+    const onAutocomplete = async (tag) => {
+        const list = await getTagAutocomplete({ tag });
         return list;
     };
 
@@ -100,6 +100,7 @@
                                             addKeys={[9, 32]}
                                             on:tags={onTagChange}
                                             autoComplete={onAutocomplete}
+                                            autoCompleteFilter={false}
                                         />
                                     </div>
                                 </div>
@@ -167,7 +168,6 @@
                         <div class="column is-full">
                             <nav
                                 class="pagination is-centered"
-                                role="navigation"
                                 aria-label="pagination"
                             >
                                 <a

web/app/src/routes/Post/Upload.svelte

@@ -38,8 +38,8 @@
         form.tags = value.detail.tags;
     };
 
-    const onAutocomplete = async () => {
-        const list = await getTagAutocomplete();
+    const onAutocomplete = async (tag) => {
+        const list = await getTagAutocomplete({ tag, positive: true });
         return list;
     };
 
@@ -107,7 +107,7 @@
             <div class="field">
                 <label for="tags" class="label">Tags</label>
                 <div class="control" id="tags">
-                    <Tags addKeys={[9, 32]} on:tags={onTagChange} autoComplete={onAutocomplete} />
+                    <Tags addKeys={[9, 32]} on:tags={onTagChange} autoComplete={onAutocomplete} autoCompleteFilter={false}/>
                 </div>
             </div>
             <div class="control">