fix: add unique constraint to split and dividends

to prevent duplicate records

app/Models/Dividend.php

@@ -68,7 +68,7 @@ class Dividend extends Model
         // nope, refresh forward looking only
         if ($dividends_meta->total_dividends) {
 
-            $start_date = $dividends_meta->last_dividend_update->addHours(24);
+            $start_date = $dividends_meta->last_dividend_update;
         }
 
         // skip refresh if there's already recent data
@@ -90,7 +90,7 @@ class Dividend extends Model
             }
 
             // insert records
-            (new self)->insert($dividend_data->toArray());
+            (new self)->insertOrIgnore($dividend_data->toArray());
 
             // sync to holdings
             self::syncHoldings($symbol);

app/Models/Split.php

@@ -73,7 +73,7 @@ class Split extends Model
         if ($split_data->isNotEmpty()) {
 
             // insert records
-            (new self)->insert($split_data->map(function ($split) {
+            (new self)->insertOrIgnore($split_data->map(function ($split) {
 
                 return [...$split, ...['id' => Str::uuid()->toString()]];
             })->toArray());

database/migrations/2021_02_25_041236_create_dividends_table.php

@@ -21,6 +21,8 @@ class CreateDividendsTable extends Migration
             $table->string('symbol', 25);
             $table->float('dividend_amount', 12, 4);
             $table->timestamps();
+
+            $table->unique(['date', 'symbol']);
         });
     }
 

database/migrations/2021_02_25_041246_create_splits_table.php

@@ -21,6 +21,8 @@ class CreateSplitsTable extends Migration
             $table->string('symbol', 25);
             $table->float('split_amount', 12, 4);
             $table->timestamps();
+
+            $table->unique(['date', 'symbol']);
         });
     }
 

tests/DividendsTest.php

@@ -58,23 +58,16 @@ class DividendsTest extends TestCase
         $this->assertEqualsWithDelta(4.95, $dividendsReinvested * $market_data->market_value, 0.01);
     }
 
-    public function test_do_not_duplicate_recent_dividends(): void
+    public function test_cannot_insert_duplicate_dividends(): void
     {
-        $this->actingAs($user = User::factory()->create());
+        // first insert
-
-        $portfolio = Portfolio::factory()->create();
-        Transaction::factory()->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('ACME')->create();
-
-        $holding = Holding::query()->portfolio($portfolio->id)->symbol('ACME')->first();
-
-        Dividend::create([
-            'symbol' => 'ACME',
-            'date' => now()->subDay(2),
-            'dividend_amount' => .01,
-        ]);
-
         Dividend::refreshDividendData('ACME');
 
-        $this->assertCount(1, $holding->dividends);
+        // try to duplicate
+        Dividend::refreshDividendData('ACME');
+
+        $dividend_count = Dividend::count();
+
+        $this->assertEquals(3, $dividend_count);
     }
 }