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Integrate with external MeiliSearch server

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This commit is contained in:
Tanner Collin 2020-06-27 22:53:39 +00:00
parent f46cafdc90
commit d614ad0743
4 changed files with 156 additions and 41 deletions
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18
apiserver/database.py
View File

@ -14,10 +14,10 @@ class Story(Base):
__tablename__ = 'stories'
sid = Column(String(16), primary_key=True)
ref = Column(String(16), unique=True)
meta_json = Column(String)
full_json = Column(String)
title = Column(String)
date = Column(Integer)
class Reflist(Base):
__tablename__ = 'reflist'
@ -25,6 +25,7 @@ class Reflist(Base):
rid = Column(Integer, primary_key=True)
ref = Column(String(16), unique=True)
sid = Column(String, ForeignKey('stories.sid'), unique=True)
source = Column(String(16))
def init():
Base.metadata.create_all(engine)
@ -34,6 +35,7 @@ def get_story(sid):
return session.query(Story).get(sid)
def put_story(story):
story = story.copy()
full_json = json.dumps(story)
story.pop('text', None)
@ -44,10 +46,10 @@ def put_story(story):
session = Session()
s = Story(
sid=story['id'],
ref=story['ref'],
full_json=full_json,
meta_json=meta_json,
title=story.get('title', None),
date=story.get('date', None),
)
session.merge(s)
session.commit()
@ -57,14 +59,14 @@ def put_story(story):
finally:
session.close()
def search(q):
def get_story_by_ref(ref):
session = Session()
return session.query(Story).filter(Story.title.contains(q))
return session.query(Story).filter(Story.ref==ref).first()
def get_reflist(amount):
session = Session()
q = session.query(Reflist).order_by(Reflist.rid.desc()).limit(amount)
return [dict(ref=x.ref, sid=x.sid) for x in q.all()]
return [dict(ref=x.ref, sid=x.sid, source=x.source) for x in q.all()]
def get_stories(amount):
session = Session()
@ -75,10 +77,10 @@ def get_stories(amount):
limit(amount)
return [x[1] for x in q]
def put_ref(ref, sid):
def put_ref(ref, sid, source):
try:
session = Session()
r = Reflist(ref=ref, sid=sid)
r = Reflist(ref=ref, sid=sid, source=source)
session.add(r)
session.commit()
except:
@ -101,4 +103,4 @@ def del_ref(ref):
if __name__ == '__main__':
init()
print(get_stories(5))
print(get_story_by_ref('hgi3sy'))

64
apiserver/migrate-whoosh-to-sqlite.py
View File

@ -1,21 +1,67 @@
import archive
import database
import search
import json
import requests
database.init()
archive.init()
search.init()
count = 0
def database_del_story_by_ref(ref):
try:
session = database.Session()
session.query(database.Story).filter(database.Story.ref==ref).delete()
session.commit()
except:
session.rollback()
raise
finally:
session.close()
def search_del_story(sid):
try:
r = requests.delete(search.MEILI_URL + 'indexes/qotnews/documents/'+sid, timeout=2)
if r.status_code != 202:
raise Exception('Bad response code ' + str(r.status_code))
return r.json()
except KeyboardInterrupt:
raise
except BaseException as e:
logging.error('Problem deleting MeiliSearch story: {}'.format(str(e)))
return False
with archive.ix.searcher() as searcher:
for docnum in searcher.document_numbers():
try:
#if docnum > 500:
# break
print('count all', searcher.doc_count_all())
print('count', searcher.doc_count())
print('docnum', docnum)
res = searcher.stored_fields(docnum)
print('id', res['id'])
database.put_story(res['story'])
for doc in searcher.documents():
try:
print('num', count, 'id', doc['id'])
count += 1
try:
database.put_story(doc['story'])
except database.IntegrityError:
print('collision!')
old_story = database.get_story_by_ref(doc['story']['ref'])
story = json.loads(old_story.full_json)
if doc['story']['num_comments'] > story['num_comments']:
print('more comments, replacing')
database_del_story_by_ref(doc['story']['ref'])
database.put_story(doc['story'])
search_del_story(story['id'])
else:
print('fewer comments, skipping')
continue
search.put_story(doc['story'])
print()
except KeyboardInterrupt:
break
except BaseException as e:
print('skipping', docnum)
print('skipping', doc['id'])
print('reason:', e)

57
apiserver/search.py Normal file
View File

@ -0,0 +1,57 @@
import logging
logging.basicConfig(
format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
level=logging.DEBUG)
import requests
MEILI_URL = 'http://127.0.0.1:7700/'
def create_index():
try:
json = dict(name='qotnews', uid='qotnews')
r = requests.post(MEILI_URL + 'indexes', json=json, timeout=2)
if r.status_code != 201:
raise Exception('Bad response code ' + str(r.status_code))
return r.json()
except KeyboardInterrupt:
raise
except BaseException as e:
logging.error('Problem creating MeiliSearch index: {}'.format(str(e)))
return False
def init():
create_index()
def put_story(story):
story = story.copy()
story.pop('text', None)
story.pop('comments', None)
try:
r = requests.post(MEILI_URL + 'indexes/qotnews/documents', json=[story], timeout=2)
if r.status_code != 202:
raise Exception('Bad response code ' + str(r.status_code))
return r.json()
except KeyboardInterrupt:
raise
except BaseException as e:
logging.error('Problem putting MeiliSearch story: {}'.format(str(e)))
return False
def search(q):
try:
params = dict(q=q, limit=250)
r = requests.get(MEILI_URL + 'indexes/qotnews/search', params=params, timeout=2)
if r.status_code != 200:
raise Exception('Bad response code ' + str(r.status_code))
return r.json()['hits']
except KeyboardInterrupt:
raise
except BaseException as e:
logging.error('Problem searching MeiliSearch: {}'.format(str(e)))
return False
if __name__ == '__main__':
create_index()
print(search('the'))

44
apiserver/server.py
View File

@ -11,6 +11,7 @@ import time
from urllib.parse import urlparse, parse_qs
import database
import search
import feed
from utils import gen_rand_id
@ -25,6 +26,7 @@ from gevent.pywsgi import WSGIServer
monkey.patch_all()
database.init()
search.init()
FEED_LENGTH = 75
news_index = 0
@ -48,16 +50,13 @@ def api():
return res
@flask_app.route('/api/search', strict_slashes=False)
def search():
def apisearch():
q = request.args.get('q', '')
if len(q) >= 3:
results = [x.meta_json for x in database.search(q)]
results = search.search(q)
else:
results = []
# hacky nested json
res = Response('{"results":[' + ','.join(results) + ']}')
res.headers['content-type'] = 'application/json'
return res
return dict(results=results)
@flask_app.route('/api/submit', methods=['POST'], strict_slashes=False)
def submit():
@ -75,16 +74,21 @@ def submit():
elif 'reddit.com' in parse.hostname and 'comments' in url:
source = 'reddit'
ref = parse.path.split('/')[4]
elif 'news.t0.vc' in parse.hostname:
raise Exception('Invalid article')
else:
source = 'manual'
ref = url
# TODO: return existing refs
existing = database.get_story_by_ref(ref)
if existing:
return {'nid': existing.sid}
else:
story = dict(id=nid, ref=ref, source=source)
valid = feed.update_story(story, is_manual=True)
if valid:
database.put_story(story)
search.put_story(story)
return {'nid': nid}
else:
raise Exception('Invalid article')
@ -148,31 +152,37 @@ def feed_thread():
try:
while True:
ref_list = database.get_reflist(FEED_LENGTH)
# onboard new stories
if news_index == 0:
for ref, source in feed.list():
if database.get_story_by_ref(ref):
continue
try:
nid = new_id()
database.put_ref(ref, nid)
database.put_story(dict(id=nid, ref=ref, source=source))
database.put_ref(ref, nid, source)
logging.info('Added ref ' + ref)
except database.IntegrityError:
continue
ref_list = database.get_reflist(FEED_LENGTH)
# update current stories
if news_index < len(ref_list):
update_ref = ref_list[news_index]['ref']
update_sid = ref_list[news_index]['sid']
story_json = database.get_story(update_sid).full_json
item = ref_list[news_index]
try:
story_json = database.get_story(item['sid']).full_json
story = json.loads(story_json)
except AttributeError:
story = dict(id=item['sid'], ref=item['ref'], source=item['source'])
valid = feed.update_story(story)
if valid:
database.put_story(story)
search.put_story(story)
else:
database.del_ref(update_ref)
logging.info('Removed ref {}'.format(update_ref))
database.del_ref(item['ref'])
logging.info('Removed ref {}'.format(item['ref']))
gevent.sleep(6)