PCv5/app/routes/search.py

from app import app, db
from app.forms.search import AdvancedSearchForm, SearchForm
from app.models.post import Post
from app.utils.render import render
from sqlalchemy import text
from flask import request


@app.route('/rechercher')
def search():
    form = AdvancedSearchForm(request.args)
    results = list()
    if form.validate():
        # Topics are sorted first in results
        topics = text("""SELECT topic.id, ts_headline(topic.title, query, 'StartSel=<<, StopSel=>>') AS headline, ts_rank_cd(textsearch, query) AS rank, MAX(topic.title)
                      FROM topic, websearch_to_tsquery_multilang(:keywords) query, to_tsvector_multilang(topic.title) textsearch
                      WHERE query @@ textsearch
                      GROUP BY topic.id,query,textsearch
                      ORDER BY rank DESC;""")
        results = list(db.session.execute(topics, {'keywords': '%' + form.q.data + '%'}))
        # Comments are less important than topics and programs
        forums = text("""SELECT comment.id, ts_headline(comment.text, query, 'StartSel=<<, StopSel=>>') AS headline, ts_rank_cd(textsearch, query) AS rank, MAX(topic.title) as title
                   FROM comment, websearch_to_tsquery_multilang(:keywords) query, to_tsvector_multilang(comment.text) textsearch, topic, program
                   WHERE query @@ textsearch
                   AND comment.thread_id = topic.thread_id
                   GROUP BY comment.id,query,textsearch
                   ORDER BY rank DESC;""")
        results.extend(list(db.session.execute(forums, {'keywords': '%' + form.q.data + '%'})))
        print(results)

    return render('search.html', form=form, results=results)