Class: Pluto::CreateDb

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/pluto/schema.rb

Instance Method Summary collapse

Instance Method Details

#down ⇒ Object

Raises:

  • (ActiveRecord::IrreversibleMigration) 


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# File 'lib/pluto/schema.rb', line 148

def down
  raise ActiveRecord::IrreversibleMigration
end

#up ⇒ Object 



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# File 'lib/pluto/schema.rb', line 7

def up
  create_table :sites do |t|
    t.string   :key,       null: false    # e.g. ruby, js, etc.
    t.string   :title,     null: false    # e.g Planet Ruby, Planet JavaScript, etc.

    t.string   :author    # owner_name, author_name
    t.string   :email     # owner_email, author_email
    t.datetime :updated   # date for subscription list last updated via pluto

    ############
    # filters (site-wide)
    t.string   :includes  # regex
    t.string   :excludes  # regex


    ######################
    # for auto-update of feed list/site config

    t.string   :url    # source url for auto-update (optional)

    ## note: make sure to use same fields for update check as feed

    t.datetime :fetched   #  date for last fetched/checked for feeds via pluto -- make not null ??
    t.integer  :http_code   # last http status code e.g. 200,404,etc.
    t.string   :http_etag    # last http header etag
    ## note: save last-modified header as text (not datetime) - pass through as is
    t.string   :http_last_modified   # last http header last-modified - note: save header as plain text!!! pass along in next request as-is
    t.string   :http_server    # last http server header if present

    # note: do NOT store body content (that is, text) and md5 digest
    #   use git! and github! commit will be http_etag!!


    #############
    # more fields

    t.timestamps  # created_at, updated_at
  end


  create_table :subscriptions do |t|   # has_many join table (sites/feeds)
    t.references :site, null: false
    t.references :feed, null: false
    t.timestamps
  end

  create_table :feeds do |t|
    t.string  :key,       null: false
    t.string  :encoding,  null: false, default: 'utf8'  # charset encoding; default to utf8
    t.string  :format      # e.g. atom (1.0), rss 2.0, rss 0.7 etc.

    t.string  :title        # user supplied title
    t.string  :auto_title   # "fallback" - auto(fill) title from feed

    t.string  :title2        # user supplied title2
    t.string  :auto_title2   # "fallback" - auto(fill) title2 from feed e.g. subtitle (atom)

    t.string  :url          # user supplied site url
    t.string  :auto_url     # "fallback" - auto(fill) url from feed

    t.string  :feed_url       # user supplied feed url
    t.string  :auto_feed_url  # "fallback" - auto discovery feed url from (site) url

    t.text    :summary    # e.g. description (rss)

    t.string  :generator   # feed generator (e.g. wordpress, etc.)  from feed
    
    t.datetime :published  # from feed published(atom)+ pubDate(rss)
    t.datetime :built      # from feed lastBuiltDate(rss)
    t.datetime :touched    # from feed updated(atom)


    ### extras (move to array for custom fields or similar??)
    t.string   :author   # author_name, owner_name
    t.string   :email    # author_email, owner_email
    t.string   :avatar   # gravator or hackergotchi handle (optional)

    t.string   :github   # github handle  (optional)
    t.string   :twitter  # twitter handle (optional)
    t.string   :meetup   # meetup handle (optional)


    ### add class/kind field e.g.
    # - personal feed/blog/site, that is, individual author
    # - team blog/site
    # - org (anization) or com(pany blog/site)
    # - newsfeed (composite)
    # - other  (link blog?, podcast?) - why? why not??

    ############
    # filters (feed-wide)
    t.string   :includes  # regex
    t.string   :excludes  # regex
    # todo: add generic filter list e.g. t.string :filters  (comma,pipe or space separated method names?)

    # -- our own (meta) fields
    t.datetime :last_published  # cache last (latest) published for items - e.g. latest date from publisehd item
    t.datetime :fetched    # last fetched date via pluto

    t.integer  :http_code   # last http status code e.g. 200,404,etc.
    t.string   :http_etag    # last http header etag
    ## note: save last-modified header as text (not datetime) - pass through as is
    t.string   :http_last_modified   # last http header last-modified - note: save header as plain text!!! pass along in next request as-is
    t.string   :http_server    # last http server header if present

    t.string   :md5       # md5 hash of body
    t.text     :body      # last http response body (complete feed!)


    t.timestamps   # created_at, updated_at
  end


  create_table :items do |t|
    t.string   :guid
    t.string   :url

    ## note: title may contain more than 255 chars!!
    ## e.g. Rails Girls blog has massive titles in feed
    ## cut-off/limit to 255
    ##  also strip tags in titles - why? why not?? - see feed.title2/auto_title2

    t.string   :title   # todo: add some :null => false ??
    t.text     :summary  # e.g. description (rss), summary (atom)
    t.text     :content

    t.datetime :published   # from feed (published)  + pubDate(rss)
    t.datetime :touched     # from feed updated (atom)

    ## todo: add :last_updated_at ??  (NOTE: updated_at already take by auto-timestamps)
    t.references :feed, null: false

    t.datetime :fetched   # last fetched/check date via pluto
    t.timestamps   # created_at, updated_at

    ## t.string   :author
    ## todo: add author/authors, category/categories
  end

end