FOSFAB-320: Add functionality to link cases while creating a case

CRM/Civicase/Hook/Post/LinkCase.php

@@ -0,0 +1,139 @@
+<?php
+
+use \Civi\Api4\CiviCase;
+use \Civi\Api4\Contact;
+
+/**
+ * Handles link case logic when case is created.
+ */
+class CRM_Civicase_Hook_Post_LinkCase {
+
+  /**
+   * Link Cases.
+   *
+   * @param string $op
+   *   The operation being performed.
+   * @param string $objectName
+   *   Object name.
+   * @param int $objectId
+   *   Object ID.
+   * @param object $objectRef
+   *   Object reference.
+   */
+  public function run(string $op, string $objectName, ?int $objectId, &$objectRef) {
+    if (!$this->shouldRun($op, $objectName)) {
+      return;
+    }
+
+    $linkToCaseId = (int) CRM_Utils_Request::retrieve('linkToCaseId', 'Positive');
+    $linkedToCaseDetails = $this->getLinkedToCaseDetails($linkToCaseId);
+    $caseDetails = $this->getCaseDetails($objectId);
+
+    $params = [
+      'case_id' => $linkToCaseId,
+      'link_to_case_id' => $objectId,
+      'activity_type_id' => CRM_Core_PseudoConstant::getKey('CRM_Activity_BAO_Activity', 'activity_type_id', 'Link Cases'),
+      'medium_id' => CRM_Core_OptionGroup::values('encounter_medium', FALSE, FALSE, FALSE, 'AND is_default = 1'),
+      'activity_date_time' => date('YmdHis'),
+      'status_id' => CRM_Core_PseudoConstant::getKey('CRM_Activity_BAO_Activity', 'activity_status_id', 'Completed'),
+      'subject' => $this->getActivitySubject($caseDetails, $linkedToCaseDetails),
+      'source_contact_id' => \CRM_Core_Session::getLoggedInContactID(),
+      'target_contact_id' => $linkedToCaseContacts[0]['contact_id'] ?? NULL,
+    ];
+
+    $activity = CRM_Activity_BAO_Activity::create($params);
+
+    $caseParams = [
+      'case_id' => $objectId,
+      'activity_id' => $activity->id,
+    ];
+    CRM_Case_BAO_Case::processCaseActivity($caseParams);
+  }
+
+  /**
+   * Determines if the hook should run or not.
+   *
+   * @param string $op
+   *   The operation being performed.
+   * @param string $objectName
+   *   Object name.
+   *
+   * @return bool
+   *   returns a boolean to determine if hook will run or not.
+   */
+  private function shouldRun(string $op, string $objectName): bool {
+    return $objectName == 'Case' && $op === 'create'
+      && (int) CRM_Utils_Request::retrieve('linkToCaseId', 'Positive') > 0;
+  }
+
+  /**
+   * Get case details required to create the activity subject.
+   *
+   * @param int $id
+   *   The case id.
+   *
+   * @return array
+   *   case details.
+   */
+  private function getLinkedToCaseDetails(int $id): array {
+    $case = CiviCase::get(FALSE)
+      ->addSelect('contact.display_name', 'case_type_id.title')
+      ->addJoin('CaseContact AS case_contact', 'INNER', ['id', '=', 'case_contact.case_id'])
+      ->addJoin('Contact AS contact', 'INNER', ['contact.id', '=', 'case_contact.contact_id'])
+      ->addWhere('id', '=', $id)
+      ->execute()
+      ->first();
+
+    return [
+      'id' => $id,
+      'caseType' => $case['case_type_id.title'] ?? '',
+      'contact' => $case['contact.display_name'] ?? '',
+    ];
+  }
+
+  /**
+   * Get case details required to create the activity subject.
+   *
+   * @param int $id
+   *   The case id.
+   *
+   * @return array
+   *   case details.
+   */
+  private function getCaseDetails(int $id): array {
+    $caseClient = Contact::get(FALSE)
+      ->addSelect('display_name')
+      ->addWhere('id', '=', $_POST['client_id'] ?? 0)
+      ->execute()
+      ->first();
+
+    return [
+      'id' => $id,
+      'caseType' => CRM_Case_BAO_Case::getCaseType($id),
+      'contact' => $caseClient['display_name'] ?? '',
+    ];
+  }
+
+  /**
+   * Create activity subject.
+   *
+   * @param array $caseDetails
+   *   The case details.
+   * @param array $linkedToCaseDetails
+   *   The linked to case details.
+   *
+   * @return string
+   *   Activity subject.
+   */
+  private function getActivitySubject(array $caseDetails, array $linkedToCaseDetails): string {
+    return ts('Create link between %1 - %2 (CaseID: %3) and %4 - %5 (CaseID: %6)', [
+      1 => $caseDetails['contact'],
+      2 => $caseDetails['caseType'],
+      3 => $caseDetails['id'],
+      4 => $linkedToCaseDetails['contact'],
+      5 => $linkedToCaseDetails['caseType'],
+      6 => $linkedToCaseDetails['id'],
+    ]);
+  }
+
+}

ang/civicase/case/actions/services/new-link-cases-case-action.service.js

@@ -0,0 +1,38 @@
+(function (angular, $, _) {
+  var module = angular.module('civicase');
+
+  module.service('NewLinkCasesCaseAction', NewLinkCasesCaseAction);
+
+  /**
+   * Create and Link Case Action service
+   *
+   * @param {object} $q $q service
+   * @param {object} ActivityType ActivityType
+   */
+  function NewLinkCasesCaseAction ($q, ActivityType) {
+    /**
+     * Click event handler for the Action
+     *
+     * @param {object} cases cases
+     *
+     * @returns {Promise} promise which resolves to the path for the popup
+     */
+    this.doAction = function (cases) {
+      var currentCase = cases[0];
+      var activityTypes = ActivityType.getAll(true);
+
+      var link = {
+        path: 'civicrm/case/add',
+        query: {
+          action: 'add',
+          reset: 1,
+          atype: _.findKey(activityTypes, { name: 'Open Case' }),
+          linkToCaseId: currentCase.id,
+          context: 'standalone'
+        }
+      };
+
+      return $q.resolve(link);
+    };
+  }
+})(angular, CRM.$, CRM._);

ang/civicase/case/details/linked-cases-tab/directives/case-details-linked-cases-tab.directive.html

@@ -7,6 +7,13 @@
       <i class="fa fa-link"></i>
       {{ ts('Link Cases') }}
     </button>
+    <button
+      class="btn btn-large btn-primary"
+      ng-click="newLinkCase()"
+    >
+      <i class="fa fa-link"></i>
+      {{ ts('Create new linked Case') }}
+    </button>
   </div>
   <civicase-case-summary-other-cases
     ng-if="item.relatedCases.length"
@@ -20,10 +27,17 @@
     <div class="civicase__activity-card--big--empty-description">
       {{ ts('Click the button below to create a new link for this case') }}
     </div>
-    <a
-      class="civicase__activity-card--big--empty-button btn"
-      ng-click="linkCase()">
-      {{ ts('Link Cases') }}
-    </a>
+    <div>
+      <a
+        class="civicase__activity-card--big--empty-button btn"
+        ng-click="linkCase()">
+        {{ ts('Link Cases') }}
+      </a>
+      <a
+        class="civicase__activity-card--big--empty-button btn"
+        ng-click="newLinkCase()">
+        {{ ts('Create new linked Case') }}
+      </a>
+    </div>
   </div>
 </div>

ang/civicase/case/details/linked-cases-tab/directives/case-details-linked-cases-tab.directive.js

@@ -17,12 +17,14 @@
    *
    * @param {object} $scope the scope object.
    * @param {object} LinkCasesCaseAction the link case action service.
+   * @param {object} NewLinkCasesCaseAction the new link case action service.
    * @param {Function} civicaseCrmUrl crm url service.
    * @param {Function} civicaseCrmLoadForm service to load civicrm forms
    */
   function civicaseCaseDetailsLinkedCasesTabController ($scope,
-    LinkCasesCaseAction, civicaseCrmUrl, civicaseCrmLoadForm) {
+    LinkCasesCaseAction, NewLinkCasesCaseAction, civicaseCrmUrl, civicaseCrmLoadForm) {
     $scope.linkCase = linkCase;
+    $scope.newLinkCase = newLinkCase;
 
     /**
      * Opens a modal that allows the user to link the case stored in the scope with
@@ -39,5 +41,20 @@
             });
         });
     }
+
+    /**
+     * Opens a modal that allows the user to open a new case and link it at the same time.
+     *
+     * The case details are refreshed after linking the cases.
+     */
+    function newLinkCase () {
+      NewLinkCasesCaseAction.doAction([$scope.item])
+        .then(function (openCaseForm) {
+          civicaseCrmLoadForm(civicaseCrmUrl(openCaseForm.path, openCaseForm.query))
+            .on('crmFormSuccess crmPopupFormSuccess', function () {
+              $scope.refresh();
+            });
+        });
+    }
   }
 })(angular);

civicase.php

@@ -279,6 +279,7 @@ function civicase_civicrm_post($op, $objectName, $objectId, &$objectRef) {
     new CRM_Civicase_Hook_Post_PopulateCaseCategoryForCaseType(),
     new CRM_Civicase_Hook_Post_CaseCategoryCustomGroupSaver(),
     new CRM_Civicase_Hook_Post_UpdateCaseTypeListForCaseCategoryCustomGroup(),
+    new CRM_Civicase_Hook_Post_LinkCase(),
   ];
 
   foreach ($hooks as $hook) {