Fix insert and randomize errors, fix time.Time

* MySQL requires timeParsing enabled
* Update readme to reflect this requirement

README.md

@@ -179,6 +179,10 @@ fmt.Println(len(users.R.FavoriteMovies))
   a *composite primary key* that encompasses both foreign table foreign keys. For example, on a
   join table named `user_videos` you should have: `primary key(user_id, video_id)`, with both `user_id`
   and `video_id` being foreign key columns to the users and videos tables respectively.
+* For MySQL if using the `github.com/go-sql-driver/mysql` driver, please activate 
+  [time.Time parsing](https://github.com/go-sql-driver/mysql#timetime-support) when making your
+  MySQL database connection. SQLBoiler uses `time.Time` and `null.Time` to represent time in 
+  it's models and without this enabled any models with `DATE`/`DATETIME` columns will not work.
 
 ### Pro Tips
 * Foreign key column names should end with `_id`.
@@ -1060,6 +1064,13 @@ with all Postgres drivers. Example:
 
 Please note that multi-dimensional Postgres ARRAY types are not supported at this time.
 
+#### Why aren't my time.Time or null.Time fields working in MySQL?
+
+For MySQL if using the `github.com/go-sql-driver/mysql` driver, please activate 
+[time.Time parsing](https://github.com/go-sql-driver/mysql#timetime-support) when making your
+MySQL database connection. SQLBoiler uses `time.Time` and `null.Time` to represent time in 
+it's models and without this enabled any models with `DATE`/`DATETIME` columns will not work.
+
 #### Where is the homepage?
 
 The homepage for the [SQLBoiler](https://github.com/vattle/sqlboiler)  [Golang ORM](https://github.com/vattle/sqlboiler) generator is located at: https://github.com/vattle/sqlboiler

bdb/drivers/mysql.go

@@ -47,6 +47,10 @@ func MySQLBuildQueryString(user, pass, dbname, host string, port int, sslmode st
 	config.Addr += ":" + strconv.Itoa(port)
 	config.TLSConfig = sslmode
 
+	// MySQL is a bad, and by default reads date/datetime into a []byte
+	// instead of a time.Time. Tell it to stop being a bad.
+	config.ParseTime = true
+
 	return config.FormatDSN()
 }
 
@@ -256,7 +260,9 @@ func (m *MySQLDriver) TranslateColumnType(c bdb.Column) bdb.Column {
 			c.Type = "null.Int8"
 		case "smallint":
 			c.Type = "null.Int16"
-		case "mediumint", "int", "integer":
+		case "mediumint":
+			c.Type = "null.Int32"
+		case "int", "integer":
 			c.Type = "null.Int"
 		case "bigint":
 			c.Type = "null.Int64"
@@ -281,10 +287,12 @@ func (m *MySQLDriver) TranslateColumnType(c bdb.Column) bdb.Column {
 			c.Type = "int8"
 		case "smallint":
 			c.Type = "int16"
-		case "mediumint", "int", "integer":
+		case "mediumint":
+			c.Type = "int32"
+		case "int", "integer":
 			c.Type = "int"
 		case "bigint":
-			c.Type = "null.Int64"
+			c.Type = "int64"
 		case "float":
 			c.Type = "float32"
 		case "double", "double precision", "real":

randomize/randomize.go

@@ -49,7 +49,7 @@ var (
 	rgxValidTime     = regexp.MustCompile(`[2-9]+`)
 
 	validatedTypes = []string{
-		"inet", "line", "uuid", "interval",
+		"inet", "line", "uuid", "interval", "mediumint",
 		"json", "jsonb", "box", "cidr", "circle",
 		"lseg", "macaddr", "path", "pg_lsn", "point",
 		"polygon", "txid_snapshot", "money", "hstore",
@@ -221,6 +221,13 @@ func randomizeField(s *Seed, field reflect.Value, fieldType string, canBeNull bo
 					field.Set(reflect.ValueOf(value))
 					return nil
 				}
+			case typeNullInt32:
+				if fieldType == "mediumint" {
+					// 8388607 is the max for 3 byte int
+					value = null.NewInt32(int32(s.nextInt())%8388607, true)
+					field.Set(reflect.ValueOf(value))
+					return nil
+				}
 			case typeNullJSON:
 				value = null.NewJSON([]byte(fmt.Sprintf(`"%s"`, randStr(s, 1))), true)
 				field.Set(reflect.ValueOf(value))
@@ -287,6 +294,13 @@ func randomizeField(s *Seed, field reflect.Value, fieldType string, canBeNull bo
 					field.Set(reflect.ValueOf(value))
 					return nil
 				}
+			case reflect.Int32:
+				if fieldType == "mediumint" {
+					// 8388607 is the max for 3 byte int
+					value = int32(s.nextInt()) % 8388607
+					field.Set(reflect.ValueOf(value))
+					return nil
+				}
 			}
 			switch typ {
 			case typeJSON:

templates/15_insert.tpl

@@ -69,7 +69,7 @@ func (o *{{$tableNameSingular}}) Insert(exec boil.Executor, whitelist ... string
 
 		if len(cache.retMapping) != 0 {
 			{{if .UseLastInsertID -}}
-			cache.retQuery = fmt.Sprintf("SELECT %s FROM {{$schemaTable}} WHERE %s", strings.Join(returnColumns, "{{.LQ}},{{.RQ}}"), strmangle.WhereClause("{{.LQ}}", "{{.RQ}}", {{if .Dialect.IndexPlaceholders}}1{{else}}0{{end}}, {{$varNameSingular}}PrimaryKeyColumns))
+			cache.retQuery = fmt.Sprintf("SELECT {{.LQ}}%s{{.RQ}} FROM {{$schemaTable}} WHERE %s", strings.Join(returnColumns, "{{.LQ}},{{.RQ}}"), strmangle.WhereClause("{{.LQ}}", "{{.RQ}}", {{if .Dialect.IndexPlaceholders}}1{{else}}0{{end}}, {{$varNameSingular}}PrimaryKeyColumns))
 			{{else -}}
 			cache.query += fmt.Sprintf(" RETURNING {{.LQ}}%s{{.RQ}}", strings.Join(returnColumns, "{{.LQ}},{{.RQ}}"))
 			{{end -}}

testdata/mysql_test_schema.sql

@@ -62,8 +62,12 @@ CREATE TABLE magic (
   time_nine   timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
   time_eleven date NULL,
   time_twelve date NOT NULL,
-  time_fifteendate NULL DEFAULT '19990108',
+  time_fifteen date NULL DEFAULT '19990108',
-  time_sixteen date NOT NULL DEFAULT '1999-01-08',
+  time_sixteen date NOT NULL DEFAULT '1999-01-08'
+);
+
+CREATE TABLE magicest (
+  id   int primary key not null auto_increment,
   aa   json NULL,
   bb   json NOT NULL,
   kk   double precision NULL,