MDL-69973 xmldb: Fix problem with MariaDB >= 10.2.7 metadata defaults

With MariaDB 10.2.7 the driver was incorrectly returning '' (empty
string) as default for all the columns having null (meaning, no
default).

Also, cover the case in unit tests, it seems that we were already
testing other defaults but not the null case.
This commit is contained in:
Eloy Lafuente (stronk7) 2020-10-18 11:53:37 +02:00
parent 58ba94a729
commit 533c35ff99
2 changed files with 37 additions and 3 deletions

View file

@ -886,7 +886,7 @@ class mysqli_native_moodle_database extends moodle_database {
$info->type = $rawcolumn->data_type; $info->type = $rawcolumn->data_type;
$info->meta_type = $this->mysqltype2moodletype($rawcolumn->data_type); $info->meta_type = $this->mysqltype2moodletype($rawcolumn->data_type);
if ($this->has_breaking_change_quoted_defaults()) { if ($this->has_breaking_change_quoted_defaults()) {
$info->default_value = trim($rawcolumn->column_default, "'"); $info->default_value = is_null($rawcolumn->column_default) ? null : trim($rawcolumn->column_default, "'");
if ($info->default_value === 'NULL') { if ($info->default_value === 'NULL') {
$info->default_value = null; $info->default_value = null;
} }

View file

@ -722,9 +722,13 @@ EOD;
$table->add_field('course', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0'); $table->add_field('course', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
$table->add_field('name', XMLDB_TYPE_CHAR, '255', null, null, null, 'lala'); $table->add_field('name', XMLDB_TYPE_CHAR, '255', null, null, null, 'lala');
$table->add_field('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null); $table->add_field('description', XMLDB_TYPE_TEXT, 'small', null, null, null, null);
$table->add_field('oneint', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
$table->add_field('oneintnodefault', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null);
$table->add_field('enumfield', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, 'test2'); $table->add_field('enumfield', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, 'test2');
$table->add_field('onenum', XMLDB_TYPE_NUMBER, '10,2', null, null, null, 200); $table->add_field('onenum', XMLDB_TYPE_NUMBER, '10,2', null, null, null, 200);
$table->add_field('onefloat', XMLDB_TYPE_FLOAT, '10,2', null, null, null, 300); $table->add_field('onenumnodefault', XMLDB_TYPE_NUMBER, '10,2', null, null, null);
$table->add_field('onefloat', XMLDB_TYPE_FLOAT, '10,2', null, XMLDB_NOTNULL, null, 300);
$table->add_field('onefloatnodefault', XMLDB_TYPE_FLOAT, '10,2', null, XMLDB_NOTNULL, null);
$table->add_field('anotherfloat', XMLDB_TYPE_FLOAT, null, null, null, null, 400); $table->add_field('anotherfloat', XMLDB_TYPE_FLOAT, null, null, null, null, 400);
$table->add_field('negativedfltint', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '-1'); $table->add_field('negativedfltint', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '-1');
$table->add_field('negativedfltnumber', XMLDB_TYPE_NUMBER, '10', null, XMLDB_NOTNULL, null, '-2'); $table->add_field('negativedfltnumber', XMLDB_TYPE_NUMBER, '10', null, XMLDB_NOTNULL, null, '-2');
@ -785,6 +789,20 @@ EOD;
$this->assertNull($field->default_value); $this->assertNull($field->default_value);
$this->assertFalse($field->not_null); $this->assertFalse($field->not_null);
$field = $columns['oneint'];
$this->assertSame('I', $field->meta_type);
$this->assertFalse($field->auto_increment);
$this->assertTrue($field->has_default);
$this->assertEquals(0, $field->default_value);
$this->assertTrue($field->not_null);
$field = $columns['oneintnodefault'];
$this->assertSame('I', $field->meta_type);
$this->assertFalse($field->auto_increment);
$this->assertFalse($field->has_default);
$this->assertNull($field->default_value);
$this->assertTrue($field->not_null);
$field = $columns['enumfield']; $field = $columns['enumfield'];
$this->assertSame('C', $field->meta_type); $this->assertSame('C', $field->meta_type);
$this->assertFalse($field->auto_increment); $this->assertFalse($field->auto_increment);
@ -800,12 +818,28 @@ EOD;
$this->assertEquals(200.0, $field->default_value); $this->assertEquals(200.0, $field->default_value);
$this->assertFalse($field->not_null); $this->assertFalse($field->not_null);
$field = $columns['onenumnodefault'];
$this->assertSame('N', $field->meta_type);
$this->assertFalse($field->auto_increment);
$this->assertEquals(10, $field->max_length);
$this->assertEquals(2, $field->scale);
$this->assertFalse($field->has_default);
$this->assertNull($field->default_value);
$this->assertFalse($field->not_null);
$field = $columns['onefloat']; $field = $columns['onefloat'];
$this->assertSame('N', $field->meta_type); $this->assertSame('N', $field->meta_type);
$this->assertFalse($field->auto_increment); $this->assertFalse($field->auto_increment);
$this->assertTrue($field->has_default); $this->assertTrue($field->has_default);
$this->assertEquals(300.0, $field->default_value); $this->assertEquals(300.0, $field->default_value);
$this->assertFalse($field->not_null); $this->assertTrue($field->not_null);
$field = $columns['onefloatnodefault'];
$this->assertSame('N', $field->meta_type);
$this->assertFalse($field->auto_increment);
$this->assertFalse($field->has_default);
$this->assertNull($field->default_value);
$this->assertTrue($field->not_null);
$field = $columns['anotherfloat']; $field = $columns['anotherfloat'];
$this->assertSame('N', $field->meta_type); $this->assertSame('N', $field->meta_type);