use Whooshee for full text theses search (#117)

* use whooshee for full text search in /theses
* remove name_en from Thesis model indexable list
* add whooshee index dir to gitignore
* reindex only when starting the app

.gitignore

@@ -103,4 +103,4 @@ src/static/practice/*/*.pdf
 src/static/thesis/*/*.pdf
 
 # Do not track fulltext search files
-src/msearch/*
+src/whooshee/*

requirements.txt

@@ -7,8 +7,8 @@ Flask-BasicAuth==0.2.0
 Flask-Login==0.6.3
 Flask-Markdown==0.3
 Flask-Migrate==4.0.7
-flask-msearch==0.2.9.4
 Flask-SimpleMDE==0.3.0
+Flask-Whooshee==0.9.1
 Flask-WTF==1.2.1
 Frozen-Flask==1.0.2
 google-auth-oauthlib==1.2.0

src/flask_se.py

@@ -26,7 +26,6 @@
 )
 from se_models import (
     db,
-    search,
     init_db,
     Staff,
     Users,
@@ -37,6 +36,7 @@
     DiplomaThemes,
     CurrentThesis,
     recalculate_post_rank,
+    whooshee,
 )
 from flask_se_auth import (
     login_manager,
@@ -377,14 +377,8 @@
 # Init Database
 db.app = app
 db.init_app(app)
-
-app.config["MSEARCH_BACKEND"] = "whoosh"
-app.config["MSEARCH_ENABLE"] = True
-search.init_app(app)
-# search.create_index(Thesis, update=True)
-# search.create_index(Users, update=True)
-# search.create_index(Thesis, update=True)
-# search.create_index(Users, update=True)
+app.config["WHOOSHEE_DIR"] = "whooshee"
+whooshee.init_app(app)
 
 # Init Migrate
 migrate = Migrate(app, db, render_as_batch=True)
@@ -715,4 +709,6 @@ def sitemap():
             with app.app_context():
                 init_db()
     else:
+        with app.app_context():
+            whooshee.reindex()
         app.run(port=5000, debug=True)

src/flask_se_theses.py

@@ -107,7 +107,7 @@ def fetch_theses():
 
     if search:
         records = (
-            Thesis.query.msearch(search)
+            Thesis.query.whooshee_search(search)
             .filter(Thesis.temporary == False)
             .filter(Thesis.publish_year >= startdate)
             .filter(Thesis.publish_year <= enddate)

src/se_models.py

@@ -12,7 +12,7 @@
 from flask import render_template
 from flask_sqlalchemy import SQLAlchemy
 from flask_login import UserMixin
-from flask_msearch import Search
+from flask_whooshee import Whooshee
 from werkzeug.security import generate_password_hash
 from datetime import datetime
 
@@ -35,10 +35,7 @@
 
 metadata = MetaData(naming_convention=convention)
 db = SQLAlchemy(metadata=metadata)
-# Workaround: flask-msearch does not work with recent Flask-SQLAlchemy.
-# Pass 'db' parameter explicitly to mitigate this problem.
-search = Search(db=db)
-
+whooshee = Whooshee()
 
 tag = db.Table(
     "tag",
@@ -132,9 +129,8 @@ def __str__(self):
         return self.user.get_name()
 
 
+@whooshee.register_model("first_name", "middle_name", "last_name")
 class Users(db.Model, UserMixin):
-    __searchable__ = ["first_name", "middle_name", "last_name"]
-
     id = db.Column(db.Integer, primary_key=True)
 
     email = db.Column(db.String(255), unique=True, nullable=True)
@@ -462,9 +458,8 @@ def __repr__(self):
         return "<%r>" % (self.name)
 
 
+@whooshee.register_model("name_ru", "description", "author", "text")
 class Thesis(db.Model):
-    __searchable__ = ["name_ru", "description", "author", "text"]
-
     id = db.Column(db.Integer, primary_key=True)
 
     type_id = db.Column(db.Integer, db.ForeignKey("worktype.id"), nullable=False)