musicapp/migrations.moon

import create_table, rename_column, add_column, types from require "lapis.db.schema"
import trim from require "lapis.util"
import process_tags from require "helpers"
import Tracks from require "models"

{
  [1]: =>
    create_table "tracks", {
      { "id", types.serial primary_key: true }
      { "artist", types.text null: true }
      { "name", types.text null: true }
      { "url", types.text null: true }
      { "status", types.integer default: 1 }
    }
  [2]: =>
    rename_column "tracks", "name", "title"
    rename_column "tracks", "url", "link"
    for column in *{
      { "art_url", types.text null: true }
      { "file_url", types.text null: true }
      { "file_size", types.integer null: true }
      { "album", types.text null: true }
      { "genre", types.text null: true }
      { "tags", types.text default: " untagged " }
      { "quality", types.integer default: 1 }
      { "mood", types.text null: true }
    }
      add_column "tracks", unpack column
  [3]: =>
    for track in *Tracks\select "*"
      tags = ""
      for field in *{"artist", "mood", "link", "genre"}
        if track[field]
          tags ..= " #{field}:#{track[field]}"
      if #tags > 0
        track.tags = process_tags trim(track.tags or "untagged") .. tags
        track\update "tags"
}