policymap/api/endpoints/list_members.py
2025-03-10 04:40:52 -07:00

65 lines
2.3 KiB
Python

# endpoints/list_members.py
from flask import Blueprint, request, jsonify
from neo4j import GraphDatabase
from app import get_driver, neo4j_logger
bp = Blueprint('list_members', __name__)
@bp.route('/list_members', methods=['GET'])
def list_members():
member_name = request.form.get('member_name')
if not member_name:
return jsonify({"error": "No member name provided"}), 400
driver = get_driver()
try:
with driver.session() as session:
result = session.run("""
MATCH (m:Person {name: $memberName})-[*]-(n)
RETURN m, n, collect(DISTINCT (m)-[r]->(n))
""", memberName=member_name)
data = {
"nodes": [],
"links": []
}
for record in result:
node1 = record["m"]
nodes = [record["n"]]
# Add the first node
if {"id": node1.id, "label": node1.labels[0], "name": node1.get("name")} not in data["nodes"]:
data["nodes"].append({"id": node1.id, "label": node1.labels[0], "name": node1.get("name")})
# Add other nodes and links
for node2 in nodes:
if {"id": node2.id, "label": node2.labels[0], "name": node2.get("name")} not in data["nodes"]:
data["nodes"].append({"id": node2.id, "label": node2.labels[0], "name": node2.get("name")})
for rel in record[2]:
if {"source": rel.start_node.id, "target": rel.end_node.id, "type": rel.type} not in data["links"]:
data["links"].append({"source": rel.start_node.id, "target": rel.end_node.id, "type": rel.type})
return jsonify(data)
except Exception as e:
neo4j_logger.error(f"Error querying Neo4j: {e}")
return jsonify({"error": str(e)}), 500
@bp.route('/get_member_names', methods=['GET'])
def get_member_names():
driver = get_driver()
try:
with driver.session() as session:
result = session.run("MATCH (p:Person) RETURN p.name AS name")
members = [record['name'] for record in result]
return jsonify(members)
except Exception as e:
neo4j_logger.error(f"Error fetching member names: {e}")
return jsonify({"error": str(e)}), 500