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import requests
from flask import abort, flash
from fatcat_web import app
"""
Helpers for doing elasticsearch queries (used in the web interface; not part of
the formal API)
"""
def do_search(q, limit=50, fulltext_only=True):
#print("Search hit: " + q)
if limit > 100:
# Sanity check
limit = 100
if fulltext_only:
q += " in_web:true"
search_request = {
"query": {
"query_string": {
"query": q,
"default_operator": "AND",
"analyze_wildcard": True,
"lenient": True,
"fields": ["title^5", "contrib_names^2", "container_title"]
},
},
"size": int(limit),
}
#print(search_request)
resp = requests.get("%s/%s/_search" %
(app.config['ELASTICSEARCH_BACKEND'], app.config['ELASTICSEARCH_RELEASE_INDEX']),
json=search_request)
if resp.status_code == 400:
print("elasticsearch 400: " + str(resp.content))
flash("Search query failed to parse; you might need to use quotes.<p><code>{}</code>".format(resp.content))
abort(resp.status_code)
elif resp.status_code != 200:
print("elasticsearch non-200 status code: " + str(resp.status_code))
print(resp.content)
abort(resp.status_code)
content = resp.json()
#print(content)
results = [h['_source'] for h in content['hits']['hits']]
for h in results:
# Ensure 'contrib_names' is a list, not a single string
if type(h['contrib_names']) is not list:
h['contrib_names'] = [h['contrib_names'], ]
# Handle surrogate strings that elasticsearch returns sometimes,
# probably due to mangled data processing in some pipeline.
# "Crimes against Unicode"; production workaround
for key in h:
if type(h[key]) is str:
h[key] = h[key].encode('utf8', 'ignore').decode('utf8')
h['contrib_names'] = [name.encode('utf8', 'ignore').decode('utf8') for name in h['contrib_names']]
found = content['hits']['total']
return {"query": { "q": q },
"count_returned": len(results),
"count_found": found,
"results": results }
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