publication-igid/lib/publication_db.js

Authorization gateway relying on an auth service for providing user editing interfaces

const { DBClass } = require('copious-transitions')


const {CategoricalRelays} = require('./cat_relays')
let g_persistence = false


function random_enough_dash_id() {
  let dd = Math.random()*934593411
  dd = Math.floor(dd)
  return("Dash" + dd)
}

// ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
//

class PublicationDBClass extends DBClass {

    //
    constructor() {
      //
      g_persistence = new CategoricalRelays()

      super(false,false,g_persistence,false)
    }


    // // // 

    async initialize(conf) {
      //
      let self = this
      // when connected to services that create publications per user... 
      let asset_intake = (obj) => {
        self.asset_intake(obj)
      }
      await super.initialize(conf)
      //g_persistence.message_fowarding.subscribe('user-publication',{ "source" : "dashboad", "m_path" : "persistence" },asset_intake)
      //
    }

    // // // 
    // // // 
    
    async fetch_user(fdata) {  //  G_users_trns.from_cache()
      let udata = await this.fetch_user_from_key_value_store(fdata[G_users_trns.kv_store_key()])
      if ( udata ) {
        return(udata)
      }
      return(false)
    }

    // 
    all_keys(category) {
      return(this.pdb.all_keys(category))
    }

    // 
    asset_intake(obj) {   // This object has not been put into static store by the backend. the backned created the file and sent it.

      let diff_key = G_publication_trns.primary_key()
      let static_dash = 'publication+' + obj[diff_key]
      //

      let dash_obj = decodeURIComponent(obj.publication) //
      try {
        dash_obj = JSON.parse(dash_obj)
      } catch(e) {
        dash_obj = {}
      }

      dash_obj[diff_key] = obj[diff_key]
      dash_obj.owner = obj[diff_key]
      dash_obj._id = static_dash
      dash_obj.which_publication = random_enough_dash_id()
      //
      let extension = {}
      // avoid publication looping...
      extension._tx_no_remote = true      // tell local DB handler that this object has already been created elsewhere, so just keep a local copy
      extension[diff_key] = obj[diff_key]         // who it belongs to 
      G_publication_trns.update(extension)  // get further refinement by custom data operators.'

      // wrap the object in a carrier, in which the object is serialized with its mime-type for future transport..
      this.put_static_store(static_dash,dash_obj,"application/json",extension)  // store it ... means a local file copy... staticDB
    }

}


//
//
module.exports = new PublicationDBClass()