Add chips to improve precision

backend/app.py

@@ -9,7 +9,6 @@ import click
 from .question import Question
 from .question_search import QuestionSearch
 
-
 app = Flask(__name__)
 
 connections.create_connection(hosts=["localhost"])
@@ -39,6 +38,15 @@ def index():
             "category": {
                 "terms": {"field": "category"},
             },
+            "suggestions": {
+                "significant_terms": {
+                    "field": "body",
+                    "mutual_information": {
+                        "include_negatives": True,
+                    },
+                    "size": 40,
+                },
+            }
         },
     })
 
@@ -51,6 +59,9 @@ def index():
         for bucket in response.aggregations.category.buckets
     ]
 
+    suggestions = [{"key": bucket.key, "count": bucket.doc_count}
+                   for bucket in response.aggregations.suggestions.buckets]
+
     date_facets = []
 
     results = []
@@ -59,14 +70,17 @@ def index():
         url = Question.url(hit)
 
         results.append({
-            "id": hit.meta.id, "score": hit.meta.score,
-            "title": hit.title, "body": summary,
-            "category": hit.category, "date": hit.date,
+            "id": hit.meta.id, "score": hit.meta.score, "title": hit.title,
+            "body": summary, "category": hit.category, "date": hit.date,
             "url": url,
         })
 
     return jsonify(
-        facets={"months": date_facets, "categories": category_facets},
+        facets={
+            "months": date_facets,
+            "categories": category_facets,
+        },
+        suggestions=suggestions,
         results=results,
         hits=round_sigfig(response.hits.total, 4),
         took=response.took / 1000,

backend/question.py

@@ -3,7 +3,10 @@ from elasticsearch_dsl import Document, Date, Keyword, Text
 
 class Question(Document):
     title = Text(analyzer="snowball")
-    body = Text(analyzer="snowball")
+    body = Text(
+        analyzer="snowball",
+        fielddata=True,
+    )
     category = Keyword()
     date = Date()
 

frontend/src/components/ResultBody.vue

@@ -1,5 +1,12 @@
 <template>
 <div class="body">
+  <div class="suggestions">
+    <div v-for="suggestion in json.suggestions" class="suggestion"
+         @click="appendToQuery(suggestion.key)">
+      {{suggestion.key}}
+    </div>
+  </div>
+
   <div class="result-count">
     Ongeveer {{hits}} resultaten ({{responseTime.toFixed(2)}} seconden)
   </div>
@@ -30,6 +37,8 @@
         </a>
       </div>
     </div>
+
+    <!--pre>{{JSON.stringify(json, null, 2)}}</pre-->
   </div>
 </div>
 </template>
@@ -40,19 +49,25 @@ import {Component, Prop, Watch} from "vue-property-decorator";
 
 @Component
 export default class ResultBody extends Vue {
-  @Prop() query;
+  @Prop() value;
 
+  json = null;
   activeCategories = [];
   hits = 0;
   results = [];
   responseTime = 0;
   facets = {};
 
-  @Watch("query")
+  @Watch("value")
   async onQueryChanged(value) {
     await this.search();
   }
 
+  @Watch("$route")
+  async onRouteChanged() {
+    this.$emit("input", this.$route.query.q);
+  }
+
   async toggleCategory(category) {
     const name = category.category;
 
@@ -67,7 +82,7 @@ export default class ResultBody extends Vue {
   }
 
   async search() {
-    const query = encodeURIComponent(this.query);
+    const query = encodeURIComponent(this.value);
     let queryString = `?q=${query}`;
 
     if (this.activeCategories.length > 0) {
@@ -79,12 +94,16 @@ export default class ResultBody extends Vue {
     const url = `/api/${queryString}`;
 
     let response = await fetch(url);
-    let json = await response.json();
+    this.json = await response.json();
 
-    this.results = json.results;
-    this.hits = json.hits;
-    this.responseTime = json.took;
-    this.facets = json.facets;
+    this.results = this.json.results;
+    this.hits = this.json.hits;
+    this.responseTime = this.json.took;
+    this.facets = this.json.facets;
+  }
+
+  appendToQuery(value) {
+    this.$emit("input", `${this.value} AND ${value}`)
   }
 }
 </script>
@@ -171,4 +190,25 @@ export default class ResultBody extends Vue {
 .category__count {
     text-align: right;
 }
+
+.suggestions {
+    display: flex;
+    flex-flow: row wrap;
+    max-width: 1000px;
+    margin: 12px 0;
+
+    height: 70px;
+    overflow-y: hidden;
+}
+
+.suggestion {
+    border: 1px solid rgba(0, 0, 0, 0.2);
+    border-radius: 12px;
+
+    background-color: #f8f8f8;
+    padding: 7px 16px;
+    margin: 2px;
+
+    cursor: pointer;
+}
 </style>

frontend/src/components/Results.vue

@@ -1,7 +1,7 @@
 <template>
 <div>
   <top-bar v-model="query" />
-  <result-body :query="query" />
+  <result-body v-model="query" />
 </div>
 </template>
 

frontend/src/components/TopBar.vue

@@ -37,8 +37,10 @@ import {Component, Prop} from "vue-property-decorator";
 export default class TopBar extends Vue {
   @Prop() value = "";
 
-  search(event) {
+  search (event) {
+    if (event.target.value.trim().length > 0) {
       this.$emit("input", event.target.value)
     }
+  }
 }
 </script>

frontend/yarn.lock

@@ -1763,9 +1763,9 @@ copy-descriptor@^0.1.0:
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
 copy-webpack-plugin@^4.0.1:
-  version "4.5.3"
-  resolved "https://registry.yarnpkg.com/copy-webpack-plugin/-/copy-webpack-plugin-4.5.3.tgz#14a224d205e46f7a79f7956028e1da6df2225ff2"
-  integrity sha512-VKCiNXQcc8zyznaepXfKpCH2cZD+/j3T3B+gsFY97P7qMlEsj34wr/sI9OCG7QPUUh7gAHVx3q8Q1rdQIDM4bA==
+  version "4.5.4"
+  resolved "https://registry.yarnpkg.com/copy-webpack-plugin/-/copy-webpack-plugin-4.5.4.tgz#f2b2782b3cd5225535c3dc166a80067e7d940f27"
+  integrity sha512-0lstlEyj74OAtYMrDxlNZsU7cwFijAI3Ofz2fD6Mpo9r4xCv4yegfa3uHIKvZY1NSuOtE9nvG6TAhJ+uz9gDaQ==
   dependencies:
     cacache "^10.0.4"
     find-cache-dir "^1.0.0"
@@ -4538,12 +4538,12 @@ node-libs-browser@^2.0.0:
     vm-browserify "0.0.4"
 
 node-notifier@^5.1.2:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.2.1.tgz#fa313dd08f5517db0e2502e5758d664ac69f9dea"
-  integrity sha512-MIBs+AAd6dJ2SklbbE8RUDRlIVhU8MaNLh1A9SUZDUHPiZkWLFde6UNwG41yQHZEToHgJMXqyVZ9UcS/ReOVTg==
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/node-notifier/-/node-notifier-5.3.0.tgz#c77a4a7b84038733d5fb351aafd8a268bfe19a01"
+  integrity sha512-AhENzCSGZnZJgBARsUjnQ7DnZbzyP+HxlVXuD0xqAnvL8q+OqtSX7lGg9e8nHzwXkMMXNdVeqq4E2M3EUAqX6Q==
   dependencies:
     growly "^1.3.0"
-    semver "^5.4.1"
+    semver "^5.5.0"
     shellwords "^0.1.1"
     which "^1.3.0"
 
@@ -5971,7 +5971,7 @@ selfsigned@^1.9.1:
   dependencies:
     node-forge "0.7.5"
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1:
+"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==