Unlocker — Access Restrictions

The Unlocker Report is a Moodle course report for administrators and teachers. It displays the access restrictions (availability conditions) applied to course activities and resources. All restriction types are listed — including those from third-party availability plugins — but only the native core types (date, group, grouping, grade, completion, and profile) and PlayerHUD conditions support inline editing. Unknown types are shown as read-only and can still be removed.

Instead of manually editing each activity's restriction settings one by one, Unlocker centralizes all restrictions in a single, searchable, filterable dashboard — reducing configuration time and improving visibility.

• 📋 Unified Dashboard: View all activity restrictions in one place.
• 🔍 Advanced Filtering:
  • Filter by activity section
  • Filter by restriction type (date, group, grade, completion, profile, PlayerHUD, etc.)
  • Search by activity name
  • Combine multiple filters at once
• 🎯 Supported Restriction Types (inline editing):
  • 📅 Date-based — Activities unlock/lock on specific dates and times
  • ' Group-based — Restrict by Moodle group membership
  • ' Grouping-based — Restrict by grouping
  • 📊 Grade-based — Restrict by activity grades (minimum, maximum, range)
  • " Completion-based — Restrict by activity completion status
  • 🆔 Profile-based — Restrict by user profile fields (standard and custom fields)
  • 🎮 PlayerHUD-based — Restrict by player level, items, or character class (requires availability_playerhud and block_playerhud)
  • - Nested restriction groups — Groups of AND/OR conditions displayed as "Nested restriction group (N)" (where N is the number of child conditions). You can hide them from students or open the native activity settings to edit the group directly.
• "️ Bulk Management:
  • Edit restrictions directly from the report
  • Delete individual restrictions
  • Remove all restrictions matching the current filter in one action
  • Operator selector per activity/section: choose whether the student must match all, any, not all, or not any of the listed conditions
  • Visibility toggle per condition (operator all / not any): control whether a hidden condition is shown greyed-out or fully invisible to students
  • Global visibility toggle (operator any / not all): single flag applied to all conditions in the group
• 🎨 Readable Descriptions: Each restriction displays a human-friendly summary (e.g., "Created after 2026-03-15 14:30")
• - AI Assistant: Describe the desired changes in natural language; the assistant shows a preview and only applies them after confirmation. Requires core_ai configured in Moodle (4.5+) or the local_playergames plugin.
• ' Safe Modifications: Session key verification protects against accidental bulk changes
• 📱 Responsive Design: Works on desktop and tablet views

Unlocker simplifies common pedagogical scenarios:

• Timed Module Releases: Ensure content unlocks on schedule; verify all dates are correct across the course.
• Group-Based Learning: Confirm group restrictions apply correctly to group work activities.
• Mastery-Based Progression: Set up grade thresholds to gate access to advanced content.
• Activity Sequencing: Ensure students complete prerequisites before advancing.
• Leveled Access: Use PlayerHUD integration to unlock content based on student progression.
• Accessibility Audits: Quickly verify that no unintended restrictions block access.

1. Navigate to a course (as a teacher or administrator).
2. In the left-side navigation menu, under Course administration, click Unlocker. (The link appears only for users with the report/unlocker:view capability.)

• Activity List: All activities and resources in the course are listed with their current restrictions.
• Restriction Display: Each activity shows all applied conditions in a human-readable format.
• Filter Panel: At the top:
  • Search box: Type to filter by activity name (real-time)
  • Section dropdown: Show restrictions only in a specific section
  • Restriction Type dropdown: Show only a specific type of condition
• Inline Editing: Each restriction is editable directly in the report — change dates, select groups, adjust grade thresholds, etc. without navigating away.
• Remove checkbox: Mark individual restrictions for removal; click Save all changes once to persist every edit and deletion together.
• Remove all visible: Marks all restrictions currently shown (respecting active filters) for removal and saves automatically after a confirmation dialog.

Scenario 1: Find all date-based restrictions expiring soon

1. Set Restriction Type filter to Date.
2. Review all date-based conditions across the course.
3. Identify restrictions ending before your course deadline.
4. Edit dates as needed.

Scenario 2: Remove all group-based restrictions for a section

1. Select the target Section from the dropdown.
2. Set Restriction Type filter to Group.
3. Click Delete All Visible (with confirmation).

Scenario 3: Audit player progression gating

1. If PlayerHUD is installed, set Restriction Type filter to PlayerHUD.
2. Review all level-based, item-based, and character-class restrictions.
3. Verify that the progression makes pedagogical sense.

• Capability-based access control: Only users with report/unlocker:view can access the report.
• Session key verification: All modifications (edit, delete) require a valid session key.
• Server-side validation: Restriction changes are validated against the course context.
• Audit-friendly: No bulk deletions without explicit user confirmation.