build_graph: réorganisation du code en fonction

data/build_graph.py

@@ -7,9 +7,6 @@ NEO4J_URI = "bolt://localhost:7687"
 NEO4J_USR = "neo4j"
 NEO4J_PSW = "test"
 
-# Conection with Neo4j
-driver = GraphDatabase.driver(NEO4J_URI, auth=(NEO4J_USR, NEO4J_PSW))
-
 
 
 def define_link_from_type(link_id):
@@ -28,14 +25,18 @@ def define_link_from_type(link_id):
 
 
 
-# Create indexes
-with driver.session() as session:
+def create_graph():
+    """
+    Build and insert graph from wikidata to neo4j
+    """
+    # Create indexes
+    with driver.session() as session:
             session.run("CREATE INDEX ON :Disease(id);")
             session.run("CREATE INDEX ON :Sign_symsymptoms(id);")
             session.run("CREATE INDEX ON :Risk_factor(id);")
 
-# Get all diseases, links, symptoms
-request_disease_links = (wikidata.request("""
+    # Get all diseases, links, symptoms
+    request_disease_links = (wikidata.request("""
         SELECT ?maladie ?maladieLabel ?link ?linkLabel ?signe_symptome ?signe_symptomeLabel
         WHERE {
         ?maladie ?link ?signe_symptome.
@@ -43,10 +44,10 @@ request_disease_links = (wikidata.request("""
         VALUES ?link {wdt:P780 wdt:p1542 wdt:P5642}
         }
         ORDER BY ?maladie
-"""
-))['results']['bindings']
+    """
+    ))['results']['bindings']
 
-for link in request_disease_links:
+    for link in request_disease_links:
         disease_id = link["maladie"]["value"].split("/")[-1]
         disease_label = link["maladieLabel"]["value"].lower()
         disease_type = "Disease"
@@ -85,5 +86,12 @@ for link in request_disease_links:
                 signe_symptome_id=signe_symptome_id
             )
 
+
+
+# Conection with Neo4j
+driver = GraphDatabase.driver(NEO4J_URI, auth=(NEO4J_USR, NEO4J_PSW))
+
+create_graph()
+
 # Close Neo4j connection
 driver.close()