recreate project

app/Models/ConfigurationModel.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace App\Models;
+
+use CodeIgniter\Model;
+
+class ConfigurationModel extends Model
+{
+    protected $table = 'configuration'; // The name of the table
+    protected $primaryKey = 'id';       // The primary key of the table
+
+    protected $allowedFields = [
+        'config_key', 
+        'config_value',
+    ]; 
+
+    /**
+     * Get configuration value by key.
+     *
+     * @param string $key
+     * @return string|null
+     */
+    public function getConfigValueByKey(string $key)
+    {
+        // Deterministic read in case historical duplicates exist
+        $result = $this->where('config_key', $key)
+            ->orderBy('id', 'DESC')
+            ->first();
+        return $result ? $result['config_value'] : null;
+    }
+
+    /**
+     * Set configuration value by key.
+     *
+     * @param string $key
+     * @param string $value
+     * @return bool
+     */
+    public function setConfigValueByKey(string $key, string $value): bool
+    {
+        // If one or more rows exist for this key, update ALL of them to avoid
+        // inconsistent reads when duplicates are present.
+        $count = $this->where('config_key', $key)->countAllResults();
+
+        if ($count > 0) {
+            // Use a direct builder update scoped by key to affect all matches
+            $ok = (bool) $this->db->table($this->table)
+                ->where('config_key', $key)
+                ->update(['config_value' => $value]);
+            return $ok;
+        }
+
+        // Insert a new record if none exist
+        return $this->insert(['config_key' => $key, 'config_value' => $value]) !== false;
+    }
+
+    // Method to retrieve all configuration data
+    public function getAllConfigs()
+    {
+        return $this->findAll();
+    }
+
+    // Method to update configuration by key
+    public function updateConfig($id, $data)
+    {
+        return $this->update($id, $data);
+    }
+
+    // Method to add new configuration
+    public function addConfig($data)
+    {
+        return $this->insert($data);
+    }
+
+    public function getConfig($key)
+    {
+        $key = (string) $key;
+        if ($key === 'semester') {
+            try {
+                $semester = (new \App\Services\SemesterRangeService($this))->getSemesterForDate();
+                if ($semester !== '') {
+                    return $semester;
+                }
+            } catch (\Throwable $e) {
+                // ignore and fall back
+            }
+        }
+
+        return $this->getConfigValueByKey($key);
+    }
+}