Reading baseColumnType() insted of columnType() in EntityContext

This helps users with custom databse types to still use the form helper
with ease.

src/Database/Schema/Table.php

@@ -16,6 +16,7 @@
 
 use Cake\Database\Connection;
 use Cake\Database\Exception;
+use Cake\Database\Type;
 
 /**
  * Represents a single table in a database schema.
@@ -81,6 +82,7 @@ class Table
      */
     protected static $_columnKeys = [
         'type' => null,
+        'baseType' => null,
         'length' => null,
         'precision' => null,
         'null' => null,
@@ -341,6 +343,34 @@ public function columnType($name, $type = null)
         return $this->_columns[$name]['type'];
     }
 
+    /**
+     * Returns the base type name for the provided column.
+     * This represent the database type a more complex class is
+     * based upon.
+     *
+     * @param string $column The column name to get the base type from
+     * @return string The base type name
+     */
+    public function baseColumnType($column)
+    {
+        if (isset($this->_columns[$column]['baseType'])) {
+            return $this->_columns[$column]['baseType'];
+        }
+
+        $type = $this->columnType($column);
+
+        if ($type === null) {
+            return null;
+        }
+
+        $map = Type::map($type);
+
+        if (isset($map[$type])) {
+            $type = Type::build($type)->getBaseType();
+        }
+        return $this->_columns[$column]['baseType'] = $type;
+    }
+
     /**
      * Check whether or not a field is nullable
      *

src/View/Form/EntityContext.php

@@ -456,7 +456,7 @@ public function type($field)
     {
         $parts = explode('.', $field);
         $table = $this->_getTable($parts);
-        return $table->schema()->columnType(array_pop($parts));
+        return $table->schema()->baseColumnType(array_pop($parts));
     }
 
     /**

tests/TestCase/Database/Schema/TableTest.php

@@ -15,10 +15,24 @@
 namespace Cake\Test\TestCase\Database\Schema;
 
 use Cake\Database\Schema\Table;
+use Cake\Database\Type;
 use Cake\Datasource\ConnectionManager;
 use Cake\ORM\TableRegistry;
 use Cake\TestSuite\TestCase;
 
+/**
+ * Mock class for testing baseType inheritance
+ *
+ */
+class FooType extends Type
+{
+
+    public function getBaseType()
+    {
+        return 'integer';
+    }
+}
+
 /**
  * Test case for Table
  */
@@ -132,6 +146,41 @@ public function testColumnTypeSet()
         $this->assertEquals('json', $table->columnType('title'));
     }
 
+    /**
+     * Tests getting the baseType as configured when creating the column
+     *
+     * @return void
+     */
+    public function testBaseColumnType()
+    {
+        $table = new Table('articles');
+        $table->addColumn('title', [
+            'type' => 'json',
+            'baseType' => 'text',
+            'length' => 25,
+            'null' => false
+        ]);
+        $this->assertEquals('json', $table->columnType('title'));
+        $this->assertEquals('text', $table->baseColumnType('title'));
+    }
+
+    /**
+     * Tests getting the base type as it is retuned by the Type class
+     *
+     * @return void
+     */
+    public function testBaseColumnTypeInherited()
+    {
+        Type::map('foo', __NAMESPACE__ . '\FooType');
+        $table = new Table('articles');
+        $table->addColumn('thing', [
+            'type' => 'foo',
+            'null' => false
+        ]);
+        $this->assertEquals('foo', $table->columnType('thing'));
+        $this->assertEquals('integer', $table->baseColumnType('thing'));
+    }
+
     /**
      * Attribute keys should be filtered and have defaults set.
      *
@@ -146,6 +195,7 @@ public function testAddColumnFiltersAttributes()
         $result = $table->column('title');
         $expected = [
             'type' => 'string',
+            'baseType' => null,
             'length' => null,
             'precision' => null,
             'default' => null,
@@ -161,6 +211,7 @@ public function testAddColumnFiltersAttributes()
         $result = $table->column('author_id');
         $expected = [
             'type' => 'integer',
+            'baseType' => null,
             'length' => null,
             'precision' => null,
             'default' => null,
@@ -177,6 +228,7 @@ public function testAddColumnFiltersAttributes()
         $result = $table->column('amount');
         $expected = [
             'type' => 'decimal',
+            'baseType' => null,
             'length' => null,
             'precision' => null,
             'default' => null,

tests/TestCase/View/Form/EntityContextTest.php

@@ -1076,7 +1076,7 @@ protected function _setupTables()
             'id' => ['type' => 'integer', 'length' => 11, 'null' => false],
             'title' => ['type' => 'string', 'length' => 255],
             'user_id' => ['type' => 'integer', 'length' => 11, 'null' => false],
-            'body' => ['type' => 'text']
+            'body' => ['type' => 'crazy_text', 'baseType' => 'text']
         ]);
         $users->schema([
             'id' => ['type' => 'integer', 'length' => 11],