5.0 lua example

build/test/new.mg.lua

+mg.write('HTTP/1.0 200 OK\r\n', 'Content-Type: text/plain\r\n', '\r\n')
+mg.write(os.date("%A"))
+
+-- for k,v in pairs(_G) do mg.write(k, '\n') end
+
+-- Open database
+local db = sqlite3.open('requests.db')
+
+-- Setup a trace callback, to show SQL statements we'll be executing.
+-- db:trace(function(data, sql) mg.write('Executing: ', sql: '\n') end, nil)
+
+-- Create a table if it is not created already
+db:exec([[
+  CREATE TABLE IF NOT EXISTS requests (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    timestamp NOT NULL,
+    method NOT NULL,
+    uri NOT NULL,
+    addr
+  );
+]])
+
+
+-- Add entry about this request
+local stmt = db:prepare(
+  'INSERT INTO requests VALUES(NULL, datetime("now"), ?, ?, ?);');
+stmt:bind_values(mg.request_info.request_method,
+                 mg.request_info.uri,
+                 mg.request_info.remote_port)
+stmt:step()
+stmt:finalize()
+
+-- Show all previous records
+mg.write('Previous requests:\n')
+stmt = db:prepare('SELECT * FROM requests ORDER BY id DESC;')
+while stmt:step() == sqlite3.ROW do
+  local v = stmt:get_values()
+  mg.write(v[1] .. ' ' .. v[2] .. ' ' .. v[3] .. ' '
+        .. v[4] .. ' ' .. v[5] .. '\n')
+end
+
+-- Close database
+db:close()