fix: ad hoc fix for join() with BETWEEN

Author: kenjis

system/Database/BaseBuilder.php

@@ -654,6 +654,7 @@ public function join(string $table, $cond, string $type = '', ?bool $escape = nu
             $cond = ' ON ' . $cond;
         } else {
             // Split multiple conditions
+            // @TODO This does not parse `BETWEEN a AND b` correctly.
             if (preg_match_all('/\sAND\s|\sOR\s/i', $cond, $joints, PREG_OFFSET_CAPTURE)) {
                 $conditions = [];
                 $joints     = $joints[0];
@@ -676,6 +677,13 @@ public function join(string $table, $cond, string $type = '', ?bool $escape = nu
             foreach ($conditions as $i => $condition) {
                 $operator = $this->getOperator($condition);
 
+                // Workaround for BETWEEN
+                if ($operator === false) {
+                    $cond .= $joints[$i] . $condition;
+
+                    continue;
+                }
+
                 $cond .= $joints[$i];
                 $cond .= preg_match('/(\(*)?([\[\]\w\.\'-]+)' . preg_quote($operator, '/') . '(.*)/i', $condition, $match) ? $match[1] . $this->db->protectIdentifiers($match[2]) . $operator . $this->db->protectIdentifiers($match[3]) : $condition;
             }

system/Database/SQLSRV/Builder.php

@@ -145,6 +145,13 @@ public function join(string $table, $cond, string $type = '', ?bool $escape = nu
             foreach ($conditions as $i => $condition) {
                 $operator = $this->getOperator($condition);
 
+                // Workaround for BETWEEN
+                if ($operator === false) {
+                    $cond .= $joints[$i] . $condition;
+
+                    continue;
+                }
+
                 $cond .= $joints[$i];
                 $cond .= preg_match('/(\(*)?([\[\]\w\.\'-]+)' . preg_quote($operator, '/') . '(.*)/i', $condition, $match) ? $match[1] . $this->db->protectIdentifiers($match[2]) . $operator . $this->db->protectIdentifiers($match[3]) : $condition;
             }

tests/system/Database/Builder/JoinTest.php

@@ -80,6 +80,25 @@ public function testJoinMultipleConditions(): void
         $this->assertSame($expectedSQL, str_replace("\n", ' ', $builder->getCompiledSelect()));
     }
 
+    /**
+     * @see https://github.com/codeigniter4/CodeIgniter4/issues/8791
+     */
+    public function testJoinMultipleConditionsBetween(): void
+    {
+        $builder = new BaseBuilder('table1', $this->db);
+
+        $builder->join(
+            'leases',
+            'units.unit_id = leases.unit_id AND CURDATE() BETWEEN lease_start_date AND lease_exp_date',
+            'LEFT'
+        );
+
+        // @TODO Should be `... CURDATE() BETWEEN "lease_start_date" AND "lease_exp_date"`
+        $expectedSQL = 'SELECT * FROM "table1" LEFT JOIN "leases" ON "units"."unit_id" = "leases"."unit_id" AND CURDATE() BETWEEN lease_start_date AND lease_exp_date';
+
+        $this->assertSame($expectedSQL, str_replace("\n", ' ', $builder->getCompiledSelect()));
+    }
+
     /**
      * @see https://github.com/codeigniter4/CodeIgniter4/issues/3832
      */