Fulltext Index (#39821)

* mysql fulltext index support

* fallback

* add doc block

* add drop support

* add test

src/Illuminate/Database/Schema/Blueprint.php

@@ -208,7 +208,7 @@ protected function addImpliedCommands(Grammar $grammar)
     protected function addFluentIndexes()
     {
         foreach ($this->columns as $column) {
-            foreach (['primary', 'unique', 'index', 'spatialIndex'] as $index) {
+            foreach (['primary', 'unique', 'index', 'fulltext', 'spatialIndex'] as $index) {
                 // If the index has been specified on the given column, but is simply equal
                 // to "true" (boolean), no name has been specified for this index so the
                 // index method can be called without a name and it will generate one.
@@ -367,6 +367,17 @@ public function dropIndex($index)
         return $this->dropIndexCommand('dropIndex', 'index', $index);
     }
 
+    /**
+     * Indicate that the given fulltext index should be dropped.
+     *
+     * @param  string|array  $index
+     * @return \Illuminate\Support\Fluent
+     */
+    public function dropFulltext($index)
+    {
+        return $this->dropIndexCommand('dropFulltext', 'fulltext', $index);
+    }
+
     /**
      * Indicate that the given spatial index should be dropped.
      *
@@ -530,6 +541,19 @@ public function index($columns, $name = null, $algorithm = null)
         return $this->indexCommand('index', $columns, $name, $algorithm);
     }
 
+    /**
+     * Specify an fulltext for the table.
+     *
+     * @param  string|array  $columns
+     * @param  string|null  $name
+     * @param  string|null  $algorithm
+     * @return \Illuminate\Support\Fluent
+     */
+    public function fulltext($columns, $name = null, $algorithm = null)
+    {
+        return $this->indexCommand('fulltext', $columns, $name, $algorithm);
+    }
+
     /**
      * Specify a spatial index for the table.
      *

src/Illuminate/Database/Schema/ColumnDefinition.php

@@ -20,6 +20,7 @@
  * @method $this nullable(bool $value = true) Allow NULL values to be inserted into the column
  * @method $this persisted() Mark the computed generated column as persistent (SQL Server)
  * @method $this primary() Add a primary index
+ * @method $this fulltext() Add a fulltext index
  * @method $this spatialIndex() Add a spatial index
  * @method $this startingValue(int $startingValue) Set the starting value of an auto-incrementing field (MySQL/PostgreSQL)
  * @method $this storedAs(string $expression) Create a stored generated column (MySQL/PostgreSQL/SQLite)

src/Illuminate/Database/Schema/Grammars/Grammar.php

@@ -83,6 +83,32 @@ public function compileChange(Blueprint $blueprint, Fluent $command, Connection
         return ChangeColumn::compile($this, $blueprint, $command, $connection);
     }
 
+    /**
+     * Compile a fulltext index key command.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @param  \Illuminate\Support\Fluent  $command
+     * @return string
+     *
+     * @throws \RuntimeException
+     */
+    public function compileFulltext(Blueprint $blueprint, Fluent $command)
+    {
+        throw new RuntimeException('This database driver does not support fulltext index creation.');
+    }
+
+    /**
+     * Compile a drop fulltext index command.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @param  \Illuminate\Support\Fluent  $command
+     * @return string
+     */
+    public function compileDropFulltext(Blueprint $blueprint, Fluent $command)
+    {
+        throw new RuntimeException('This database driver does not support fulltext index creation.');
+    }
+
     /**
      * Compile a foreign key command.
      *

src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php

@@ -241,6 +241,18 @@ public function compileIndex(Blueprint $blueprint, Fluent $command)
         return $this->compileKey($blueprint, $command, 'index');
     }
 
+    /**
+     * Compile a fulltext index key command.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @param  \Illuminate\Support\Fluent  $command
+     * @return string
+     */
+    public function compileFulltext(Blueprint $blueprint, Fluent $command)
+    {
+        return $this->compileKey($blueprint, $command, 'fulltext');
+    }
+
     /**
      * Compile a spatial index key command.
      *
@@ -350,6 +362,18 @@ public function compileDropIndex(Blueprint $blueprint, Fluent $command)
         return "alter table {$this->wrapTable($blueprint)} drop index {$index}";
     }
 
+    /**
+     * Compile a drop fulltext index command.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @param  \Illuminate\Support\Fluent  $command
+     * @return string
+     */
+    public function compileDropFulltext(Blueprint $blueprint, Fluent $command)
+    {
+        return $this->compileDropIndex($blueprint, $command);
+    }
+
     /**
      * Compile a drop spatial index command.
      *

tests/Database/DatabaseMySqlSchemaGrammarTest.php

@@ -362,6 +362,16 @@ public function testAddingIndexWithAlgorithm()
         $this->assertSame('alter table `users` add index `baz` using hash(`foo`, `bar`)', $statements[0]);
     }
 
+    public function testAddingFulltextIndex()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->fulltext('body');
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(1, $statements);
+        $this->assertSame('alter table `users` add fulltext `users_body_fulltext`(`body`)', $statements[0]);
+    }
+
     public function testAddingSpatialIndex()
     {
         $blueprint = new Blueprint('geo');