old_contents: const seeder = require('mongoose-seed');
  const config = require('../config/config');
  const seedData = require('./seed-data');
  
  //Models
  school = 'models/school_model.js'
  admin = 'models/admin_model.js'
  parent = 'models/parent_model.js'
  
  
  // Connect to MongoDB via Mongoose
  seeder.connect(config.mongoDBConnection.mongoDB_connection_string_Debug, function() {
  
    // Load Mongoose models
    seeder.loadModels([
      school,
      admin,
      parent
    ]);
  
   // Clear specified collections
   seeder.clearModels(['School','Admin','Parent'], function() {
  
    // Callback to populate DB once collections have been cleared
    seeder.populateModels(seedData, function() {
      seeder.disconnect();
    });
  
  });
  });
  
  // Data array containing seed data - documents organized by Model
  
new_contents: const seeder = require('mongoose-seed');
  const config = require('../config/config');
  const seedData = require('./seed-data');
  
  //Models
  const school = 'models/school_model.js'
  const admin = 'models/admin_model.js'
  const parent = 'models/parent_model.js'
  
  
  // Connect to MongoDB via Mongoose
  seeder.connect(config.mongoDBConnection.mongoDB_connection_string_Debug, function() {
  
    // Load Mongoose models
    seeder.loadModels([
      school,
      admin,
      parent
    ]);
  
   // Clear specified collections
   seeder.clearModels(['School','Admin','Parent'], function() {
  
    // Callback to populate DB once collections have been cleared
    seeder.populateModels(seedData, function() {
      seeder.disconnect();
    });
  
  });
  });
  
  // Data array containing seed data - documents organized by Model
  
subject: fix variable set up