rep: Semantic Repository

This repository has been developed as a custom module for Drupal 10+ and implemented mainly in PHP. The module depends on an external API called HASCO/API (HASCO/API code is available at https://github.com/HADatAc/hascoapi). HASCO/Repo content is stored inside of the API's knowledge graph.

• Developer: HADatAc.org community (http://hadatac.org)

Deployment:

rep deployment requires the availability of a Drupal instance (version 10 or above), and an user of this Drupal instance with adminstrative privileges.

• upload rep code
  • in the admin menu, go to Extend > Add New Module > Add from a URL
  • paste the following link from github: https://github.com/HADatAc/rep/archive/refs/heads/main.zip
• upload module dependencies. See below a list of current rep dependencies:
  • Key (https://www.drupal.org/project/key)
• go to Extend and install both rep and its dependencies
• clear all Drupal caches
  • in the admin menu, go to Configuration > Performance > Clear All Caches

Configuration setup:

User needs to have administrative privileges on Drupal to be able to setup rep

• Step 1: setup secret key to connect to API
  • the secret key is a string used during the setup of the API. The secret key of rep and its API must be exactly the same
  • In rep, the key is added going to [drupal_url]/admin/config/system/keys/add
    • Provide a name that will be later selected in the rep configuration page
    • Select type Authentication
    • Select provider Configuration
• Step 2: setup rep
  • go to Main Menu > Advanced > Configuration (or alternativelly [drupal_url]/admin/config/rep)
    • Check whether or not you want rep search page to be the main page of your website
    • Provide a short name
    • Provide a full name - used as the website's title
    • Provide a domain URL - this is the base of the URIs for all the rep elements created in the current rep instance
    • Provide a namespace for the domain
    • Provide a description for the website
    • Provide the base URL for the API -- this is the URL of the back-end machine hosting the API
    • Provide the name of the key used to create API tokens -- the API is not going to respond if the token is missing or is incorrect
• Step 3: setup rep's Knowledge Graph
  • go to Main Menu > Advanced > Configuration > Manage Namespaces (or alternativelly [drupal_url]/admin/config/rep/namespace)
    • verify that you can see a list of namespaces
    • for the namespaces with values for Source URL, verify if they have values for triples. If not, you need to select the Reload Triples From All Namespaces With URL
    • wait a while and press the refresh button of the browser to verify if the triples have been loaded
    • if needed, the triples can be deleted and reloaded again. Wait for the triples to be zeroed before reloading.

Usage:

Once the module is installed, rep options are going to be available under main menu > Advanced. Access to rep options depends on user permissions on Drupal. By default, an anonymous user of a rep repository has access to the search and about pages.

Upgrade (in Pantheon):

• put website under maintenance (Configuration > Maintenance Mode > Put site into maintenance mode)
• using Drupal Admin Menu's Extend, uninstall rep module
• clear caches
• using Pantheon's site maintenance, move website from git to sftp mode
• use sftp to remove module files under /code/web/modules
• use sftp to remove module files cached under /tmp
• clear caches
• using Extend, verify if rep module's code has been removed from the list of available modules
• remove website from maintenance
• put website under maintenance
• using Extend, upload new version of rep module
• using Extend, install new rep
• clear caches
• remove website from maintenance
• restore rep configuration including key