Initial commit

sys/apis/tableDB.lua

@@ -0,0 +1,53 @@
+local class = require('class')
+
+local TableDB = class()
+function TableDB:init(args)
+  local defaults = {
+    fileName = '',
+    dirty = false,
+    data = { },
+    tabledef = { },
+  }
+  Util.merge(defaults, args)  -- refactor
+  Util.merge(self, defaults)
+end
+ 
+function TableDB:load()
+  local table = Util.readTable(self.fileName)
+  if table then
+    self.data = table.data
+    self.tabledef = table.tabledef
+  end
+end
+ 
+function TableDB:add(key, entry)
+  if type(key) == 'table' then
+    key = table.concat(key, ':')
+  end
+  self.data[key] = entry
+  self.dirty = true
+end
+ 
+function TableDB:get(key)
+  if type(key) == 'table' then
+    key = table.concat(key, ':')
+  end
+  return self.data[key]
+end
+ 
+function TableDB:remove(key)
+  self.data[key] = nil
+  self.dirty = true
+end
+ 
+function TableDB:flush()
+  if self.dirty then
+    Util.writeTable(self.fileName, {
+      tabledef = self.tabledef,
+      data = self.data,
+    })
+    self.dirty = false
+  end
+end
+
+return TableDB