Typehead diseases when query contains source substring (#4592)

* Typehead deiseases when query contains source string

* Better changelog

* Use constant instead of repeated string

* Simplify

---------

Co-authored-by: Chiara Rasi <rasi.chiara@gmacil.com>

CHANGELOG.md

@@ -10,6 +10,7 @@ About changelog [here](https://keepachangelog.com/en/1.0.0/)
 - Option to filter variants by excluding genes listed in selected gene panels, files or provided as list
 - STR variant information card with database links, replacing empty frequency panel
 - Display paging and number of HPO terms available in the database on Phenotypes page
+- On case page, typeahead hints when searching for a disease using substrings containing source ("OMIM:", "ORPHA:")
 ### Changed
 - In the case_report #panel-tables has a fixed width
 - Updated IGV.js to 2.15.11

scout/adapter/mongo/disease_terms.py

@@ -10,6 +10,9 @@
 LOG = logging.getLogger(__name__)
 
 DISEASE_FILTER_PROJECT = {"hpo_terms": 0, "genes": 0}
+REGEX = "$regex"
+REGEX_OPTIONS = "$options"
+REGEX_IGNORECASE = "i"
 
 
 class DiagnosisHandler(object):
@@ -32,8 +35,8 @@ def query_disease(
         if query:
             query_dict = {
                 "$or": [
-                    {"disease_nr": {"$regex": query, "$options": "i"}},
-                    {"description": {"$regex": query, "$options": "i"}},
+                    {"disease_id": {REGEX: query, REGEX_OPTIONS: REGEX_IGNORECASE}},
+                    {"description": {REGEX: query, REGEX_OPTIONS: REGEX_IGNORECASE}},
                 ]
             }
             # If source is specified, add this restriction to the query