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Module Index

Module Tiers

LEAST modules are classified by risk and centrality:

Tier Modules Risk level
Tier 1 — Platform Core libgeneral, libdb, liblogin, libdatetime, libengine, libmenu, libdashboard Highest — used by everything
Tier 2 — Business Core libassociation, libcollection_admin, libcollection_use, liblesson, libprimary High — core business logic
Tier 3 — Secondary quiz, discussion, course, keyring, educator tools Medium
Tier 4 — Specialised mindfulwriting, family, rollcall, logictree, openbadge, entrepreneur, slack Lowest — isolated

Core Modules

libgeneral

The most-used module. fn_Gen_* functions are called everywhere. Includes:

  • fn_Gen_PageStart() / fn_Gen_PageEnd() — page wrapper
  • fn_Gen_Array_GetValue() / fn_Gen_Array_SetValue() — array helpers
  • fn_Gen_HasData() — safe array check
  • fn_T() — translation/localisation (most-called function in the platform)
  • Engine array rendering system

libdb

All database access flows through here:

  • fn_Db_GenericSQLRead_Array() — read query returning PHP array
  • fn_Db_GenericSQLExecute() — write query execution
  • fn_Db_CreateArray() / fn_Db_CreateInsertIgnoreSQL() — insert helpers
  • fn_Db_ScrapeInput() — input sanitisation (always use this before writing user input)

liblogin

Authentication and session management:

  • fn_Login_ValidateLogin() — standard auth gate
  • fn_Login_Admin_ValidateLogin() — admin auth gate (Level 3 required)
  • fn_Login_ValidateLogin_Generic() — underlying auth implementation

libassociation

Association management and permissions:

  • fn_Association_Security() — the main permission check function
  • fn_Association_PermissionProcess() — grant/revoke permissions
  • fn_Association_NoPermissionBlock() — renders “access denied” message
  • fn_Db_AssocMember() — membership check

libcollection_admin / libcollection_use

Collection engine administration and end-user display:

  • Admin: create/edit collections, fields, views, actions
  • Use: display records, handle interactions, render swim lanes

liblesson

Lesson and material management:

  • fn_Lesson_Manage() — lesson CRUD
  • fn_Lesson_Materials_*() — material attachment
  • fn_Lesson_Progress_*() — learner progress tracking

Key Global Variables

Variable Set by Purpose
$objGlobal_ODBC const_db.php Global MySQL connection
$intGlobal_LoginId fn_Login_ValidateLogin() Current user's ID
$aryGlobal_Login fn_Login_ValidateLogin() Current user's full record
$strGlobal_AssociationRef Request URL Current association context
$strGlobal_Master_IncludePath Entry page Path to /lib/
$aryZLeastSettings fn_db_data.php ZLEASTSettings table (global config)

Request Flow

Every page request follows: 

Browser → Entry Page → const_globals.php → fn_standard_library.php
  → fn_Login_ValidateLogin() → Domain Aggregator → Domain Functions
  → DB reads/writes → HTML render → fn_standard_close.php

See the Developer Guide for API and integration flows.