Relations search unify (#61)

* Consolidate relations search

Consolidate relations search, enclose in where statement to keep relation join correct.
Add tests to test relations parts

* Apply fixes from StyleCI

---------

Co-authored-by: StyleCI Bot <bot@styleci.io>

src/RequestParameters/SearchParameter.php

@@ -91,17 +91,6 @@ protected function makeQuery(Builder $builder, array $arguments, string $boolOpe
                 continue;
             }
 
-            if ($this->isRelationSearch($key) && !str_contains($key, '!')) {
-                // relation search
-                [$rel, $attr] = explode(self::RELATION_SEPARATOR, $key, 2);
-
-                $builder->whereHas(Str::camel($rel), function ($query) use ($attr, $value, $functionName) {
-                    $this->makeSingleQuery($functionName, $query, $attr, $value);
-                });
-
-                continue;
-            }
-
             $this->makeSingleQuery($functionName, $builder, $key, $value);
         }
     }

src/SearchCallbacks/AbstractCallback.php

@@ -92,7 +92,11 @@ protected function appendRelations(Builder $builder, string $column, Categorized
                 return;
             }
 
-            $this->execute($builder, $relatedColumns, $values);
+            // $this->execute($builder, $relatedColumns, $values);
+            // need to group those wheres statements....otherwise, there will be OR statement added, and relation would be "broken"
+            $builder->where(function ($builder) use ($relatedColumns, $values) {
+                $this->execute($builder, $relatedColumns, $values);
+            });
             $this->checkExecuteForCustomfieldsParameter($builder);
         });
     }

tests/TestModel.php

@@ -5,8 +5,14 @@
 namespace Asseco\JsonQueryBuilder\Tests;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class TestModel extends Model
 {
     protected $table = 'test';
+
+    public function relationsOne(): HasMany
+    {
+        return $this->hasMany(TestRelationOneModel::class);
+    }
 }

tests/TestRelationOneModel.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Asseco\JsonQueryBuilder\Tests;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class TestRelationOneModel extends Model
+{
+    protected $table = 'test_relation_one';
+
+    public function testModel(): BelongsTo
+    {
+        return $this->belongsTo(TestModel::class);
+    }
+}

tests/Unit/RequestParameters/SearchParameterTest.php

@@ -215,4 +215,58 @@ public function produces_not_between_query()
 
         $this->assertEquals($query, $this->builder->toSql());
     }
+
+    /** @test */
+    public function produces_correct_relations_query_one()
+    {
+        $arguments = [
+            'relationsOne.attribute1' => '=ABC',
+        ];
+
+        $searchParameter = $this->createSearchParameter($arguments);
+        $searchParameter->run();
+
+        $producedSql = $this->builder->toSql();
+
+        $query = 'select * from "test" where (((exists (select * from "test_relation_one" where "test"."id" = "test_relation_one"."test_model_id" and ("attribute1" in (?))))))';
+
+        $this->assertEquals($query, $producedSql);
+    }
+
+    /** @test */
+    public function produces_correct_relations_query_for_begins_with()
+    {
+        $arguments = [
+            'relationsOne.attribute1' => 'starts_withABC',
+        ];
+
+        $searchParameter = $this->createSearchParameter($arguments);
+        $searchParameter->run();
+
+        $producedSql = $this->builder->toSql();
+
+        $query = 'select * from "test" where (((exists (select * from "test_relation_one" where "test"."id" = "test_relation_one"."test_model_id" and ("attribute1" LIKE ?)))))';
+
+        $this->assertEquals($query, $producedSql);
+    }
+
+    /** @test */
+    public function produces_correct_relations_query_for_top_level_or()
+    {
+        $arguments = [
+            '||' => [
+                'attribute1' => '=AAA',
+                'relationsOne.attribute1' => 'starts_withBBB',
+            ],
+        ];
+
+        $searchParameter = $this->createSearchParameter($arguments);
+        $searchParameter->run();
+
+        $producedSql = $this->builder->toSql();
+
+        $query = 'select * from "test" where ((("attribute1" in (?))) or ((exists (select * from "test_relation_one" where "test"."id" = "test_relation_one"."test_model_id" and ("attribute1" LIKE ?)))))';
+
+        $this->assertEquals($query, $producedSql);
+    }
 }