README

This extension is meant to be a toolbox for integrating CiviCRM with other (potentially) remote systems. An example for this could be your website, and/or another database.

Features

• Create a secure link between a remote system's user (e.g. Drupal user) and a CivCRM contact.
• Generate and validate customized/personalized secure tokens.
• Get, create, update, and delete entities via a special remote API with user based permission check.
• Forms with validation for create and update.
• Different implementations for the same entity using profiles.
• Remote entity fields can differ from the actual entity fields.

Requirements

• PHP 8.1+
• CiviCRM 5.57+

Installation

• Install the dependent extensions listed in info.xml:
  • de.systopia.identitytracker
  • de.systopia.xcm
• Add the extension folder to your CiviCRM ext directory.
• If your project uses composer: Add the requirements listed in composer.json to your composer project:
  • symfony/html-sanitizer
  • systopia/expression-language-ext
  • systopia/opis-json-schema-ext
  • webmozart/assert
• Otherwise: Run composer update inside the de.systopia.remotetools folder.
• Enable the extension. (Either via UI or cv ext:enable de.systopia.remotetools)

For the frontend part you can use the CiviRemote Drupal module.

Usage

You can use this extension via other extensions that rely on Remote Tools:

• Remote Events Extension
• Remote Activity Extension

Providing own remote entities

If you want to provide an own remote entity that accesses the entity MyEntity, you can do the following:

• Create the class \Civi\Api4\RemoteMyEntity (name can be freely chosen) that extends Civi\RemoteTools\Api4\AbstractRemoteEntity.
  • Implement the method permissions() to restrict access to your remote API user. (See CiviCRM documentation.)
• Create a class that extends \Civi\RemoteTools\EntityProfile\AbstractRemoteEntityProfile. (For read only entities use \Civi\RemoteTools\EntityProfile\AbstractReadOnlyRemoteEntityProfile instead.) The various methods are documented in \Civi\RemoteTools\EntityProfile\RemoteEntityProfileInterface.
  • Add the public constants NAME (set to e.g. my-profile, default, or also an empty string), ENTITY_NAME (set to MyEntity), REMOTE_ENTITY_NAME (set to RemoteMyEntity).
  • Use the trait \Civi\RemoteTools\EntityProfile\Traits\ConstProfileMetadataTrait.
• Register the class as service in the service container via hook_civicrm_container like this:

$container->autowire(MyRemoteEntityProfile::class)
  ->addTag(MyRemoteEntityProfile::SERVICE_TAG);

Now you should be able to access data via APIv4, e.g.

civicrm_api4('RemoteMyEntity', 'get', ['profile' => 'my-profile']);

(Use the APIv4 explorer to test.)

Most methods in the profile class have a parameter named $contactId. This contains the remote contact ID resolved to a CiviCRM contact ID or NULL if no remote contact ID was given. If a given remote contact ID could not be resolved, access is denied. The resolving is done using the extension de.systopia.identitytracker.

You can find more information in the PHPDoc of the various classes, interfaces, and methods.

All elements that can be safely used by third parties are marked with @api. Their behavior will be stable within minor updates. Breaking changes may only happen in major updates (semantic versioning). If a class or interface is marked with @api then this applies to all methods within it. If you'd like to use code that is not labeled as API, yet, please open an issue, so we can consider to add it to the API.

Additionally, interfaces marked with @apiService, have a corresponding service in the DI container that can be safely used by third parties. Though in contrast to @api those interfaces should not be implemented.

Services are private by default. If you need a service of this extension as public service, just make a public alias.

Forms

Forms for creation and update are specified in a \Civi\RemoteTools\Form\FormSpec\FormSpec. This specification will be converted to JSON Forms. (Different output would be possible with a custom action handler.) The Drupal module civiremote_entity provides the corresponding part that accesses the remote entity API and renders the forms as Drupal forms.

Contact Search Forms

Custom forms for contact searches can be inherited from class CRM_Remotetools_RemoteContactProfile. Your profile class needs to implement the following methods:

• getProfileID()
  • return the profile id, ie. 'my-profile'
• getProfileName()
  • return the human readable form of the profile id, .ie 'This is my profile'
• getReturnFields()
  • return an array of names for those fields that are part of the custom search form
• addFields($fields_collection)
  • provides a type specification for those fields that are part of the custom search form
  • call $fields_collection->setFieldSpec(...) for specifying each field
  • field names should match the names that are being returned by getReturnFields()

In addition, take a look and implement the following methods:

• applyRestrictions()
  • restrict the custom search query
  • explore possible request parameters in api explorer
  • ie. contact_type, limit, return sequential
• filterResult()
  • apply customization to the result of a search query
• isOwnDataProfile
  • see method comments and either return true or false

Field specification

Define a field that holds array data

Such a field specification is of type T_ENUM and needs an options field in the data passed on to setFieldSpec() in addFields():

$fields_collection->setFieldSpec(
  'a_list',
  [
    'name' => 'a_list'
    'type' => CRM_Utils_Type::T_ENUM,
    'options': ["dummy"]
  ]
);

The options field is manadatory if data is supposed to be rendered in a Drupal View. Otherwise the settings menu of the field in the corresponding Drupal View won't show the menu entry Multiple field settings.

The options field must at least hold a single array entry. an empty array is not sufficient. The option name can be arbitrary as the options are not used any further by the Drupal View.

In order to show the array entries for that field in a Drupal View as a simple list without bullets or indices, do:

• open the Multiple field settings of the field in the Drupal View
• select Simple Separator as Display type
• as Separator insert the html linebreak tag <br/>

License

The extension is licensed under AGPL-3.0.