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var express = require('express'); | |
var cookieParser = require('cookie-parser'); | |
var session = require('express-session'); | |
var flash = require('express-flash'); | |
var handlebars = require('express-handlebars') | |
var app = express(); | |
var sessionStore = new session.MemoryStore; | |
// View Engines |
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CREATE FUNCTION distance_between (from_lat DECIMAL(6, 3), from_lng DECIMAL(6, 3), to_lat DECIMAL(6, 3), to_lng DECIMAL(6, 3)) RETURNS DECIMAL(11, 3) | |
RETURN 6371 * 2 * ATAN2(SQRT(POW(SIN(RADIANS(to_lat - from_lat)/2), 2) + POW(SIN(RADIANS(to_lng - from_lng)/2), 2) * COS(RADIANS(from_lat)) * COS(RADIANS(to_lat))), SQRT(1 - POW(SIN(RADIANS(to_lat - from_lat)/2), 2) + POW(SIN(RADIANS(to_lng - from_lng)/2), 2) * COS(RADIANS(from_lat)) * COS(RADIANS(to_lat)))); |