✨ use dot notiation with extended tbl object

[kkharji]

Purpose

Try to make accessing table functions by dot notiation.

Details

When extending sql object or tables, there is rarely any case where the user need to pass self. Additionally, when dealing with tables inside db object, this db.tbl.insert {...} than db.tbl:insert {..}

I have no plans to support dot notation for db object as it would create confusion between accessing a table or call a method.

Changes:

• Fix parsing schema key when using key value pairs.
• access tbl original methods after overwrite with appending _, same goes to db extended object

  users.get = function()
    return users._get({ where = { id = 1 } })[1].name
  end

• super lazy extend

TODO:

• Update sql test related to extended tables
• explore the possibility of using t._get() instead or t.tbl.get()
• refactor tbl:extend
• create new emmylua class definition for dot noted methods

followup:

• create some examples in examples directory