Implemented add ticker feature. TODO - implement remvoe ticker feature.

indicators.py

@@ -36,6 +36,7 @@ from dotenv import load_dotenv
 import psycopg2
 import os
 import sys
+from sec_cik_mapper import StockMapper
 
 pd.options.mode.chained_assignment = None  # default='warn'
 load_dotenv()
@@ -81,6 +82,28 @@ def get_watchlist(username : str):
 
     return df
 
+def insert_ticker(username : str, tick : str, name : str):
+    if username:
+        table_name = f"{username + '_watch_list'}"
+    else: # username is None, use default table
+        table_name = "stock_watch_list"
+
+    QUERY1 = f'''CREATE TABLE IF NOT EXISTS {table_name} 
+        (
+            tick character varying(5) NOT NULL,
+            description text,
+            PRIMARY KEY (tick)
+        );'''
+    QUERY2 = f"INSERT INTO {table_name} SELECT 'SPY', 'SPDR S&P 500 ETF Trust' WHERE NOT EXISTS (SELECT NULL FROM {table_name});"
+
+    QUERY3 = f"INSERT INTO {table_name} VALUES ('{tick}', '{name}') ON CONFLICT DO NOTHING;"
+
+    with connect_db() as conn:
+        with conn.cursor() as curs:
+            curs.execute(QUERY1)
+            curs.execute(QUERY2)
+            curs.execute(QUERY3)
+
 def hash_password(password):
     # Encode the password as bytes
     password_bytes = password.encode('utf-8')
@@ -622,13 +645,19 @@ def fetch_stk_data(sym, sd):
 app.layout = [
     html.Div([
         html.Button('Load', id="reload-button", n_clicks=0,
-                    style={'font-size': '12px', 'width': '120px', 'display': 'inline-block', 'margin-bottom': '10px', 'margin-right': '5px', 'height':'36px', 'verticalAlign': 'top'}),
+                    style={'font-size': '12px', 'width': '80px', 'display': 'inline-block', 'margin-bottom': '10px', 'margin-right': '5px', 'height':'36px', 'verticalAlign': 'top'}),
+        # html.Label('Add ticker:', style={'width': '80px', 'display': 'inline-block', 'height':'36px', 'textAlign': 'center', 'adjust': 'right', 'margin-bottom': '10px', 'margin-right': '5px', 'verticalAlign': 'top'}),
+        html.Div([
+            html.Label('Add ticker:'),
+            dcc.Input(id='input-ticker', type='text', maxLength=5, debounce=True, style={'height':'31px', 'width':'50px'}),
+        ], style={'width': '150px', 'text-align': 'center'}),
+        html.Button('Remove', id="remove-button", n_clicks=0,
+                    style={'font-size': '12px', 'width': '80px', 'display': 'inline-block', 'margin-bottom': '10px', 'margin-right': '5px', 'height':'36px', 'verticalAlign': 'top'}),
         html.Div([
-            # dcc.Dropdown({'SPY - SPDR S&P 500 ETF Trust'}, 'SPY - SPDR S&P 500 ETF Trust', id='symbols_dropdown_list',),
             dcc.Dropdown(id='symbols_dropdown_list',),
         ], style={'width': '330px', 'text-align': 'center'}),
         html.Button('Auto Play', id="start-button", n_clicks=0,
-                    style={'font-size': '12px', 'width': '120px', 'display': 'inline-block', 'margin-bottom': '10px', 'margin-right': '5px', 'height':'36px', 'verticalAlign': 'top'}),
+                    style={'font-size': '12px', 'width': '80px', 'display': 'inline-block', 'margin-bottom': '10px', 'margin-right': '5px', 'height':'36px', 'verticalAlign': 'top'}),
     ], style={'display':'flex', 'justify-content':'center'}),
 
     dcc.Graph(
@@ -644,6 +673,8 @@ app.layout = [
         max_intervals=1,
         disabled=True,
     ),
+
+    dcc.Store(id="signaling"),
 ]
 
 app.clientside_callback(
@@ -662,6 +693,19 @@ app.clientside_callback(
     Input("start-button", "id")
 )
 
+# tiker input callback
+@callback(Output('signaling', component_property='data'),
+          Input('input-ticker', component_property='value'))
+
+def update_tickers(ticker):
+    if ticker:
+        long_name = StockMapper().ticker_to_company_name.get(ticker)
+        if long_name:
+            insert_ticker(auth.username, ticker.upper(), long_name)
+            return True
+    return no_update
+
+
 # start / stop button callback
 @callback(Output('interval-component', 'disabled'),
             Output("start-button", "children"),
@@ -681,10 +725,11 @@ def start_cycle(n, value):
 @callback(Output('symbols_dropdown_list', 'options'),
             Output('interval-component', 'n_intervals'),
             Output('interval-component', 'max_intervals'),
-            Input("reload-button", "n_clicks"),)
+            Input("reload-button", "n_clicks"),
+            Input("signaling", "data"))
 
-def reload_syms(n):
+def reload_syms(n, s):
-    if n:
+    if n or s:
         watchlist = get_watchlist(auth.username)
         symbols = (watchlist.iloc[:, 0] + " - " + watchlist.iloc[:, 1]).tolist()
         return symbols, 0, 2*len(symbols)