Function Parse

tools/goctl/model/sql/parser/parser.go:67–172

Parse parses ddl into golang structure

(filename, database string, strict bool)

// Parse parses ddl into golang structure
func Parse(filename, database string, strict bool) ([]*Table, error) {
	p := parser.NewParser()
	tables, err := p.From(filename)
	if err != nil {
		return nil, err
	}

	nameOriginals := parseNameOriginal(tables)
	indexNameGen := func(column ...string) string {
		return strings.Join(column, "_")
	}

	prefix := filepath.Base(filename)
	var list []*Table
	for indexTable, e := range tables {
		var (
			primaryColumn    string
			primaryColumnSet = collection.NewSet[string]()
			uniqueKeyMap     = make(map[string][]string)
			// Unused local variable
			// normalKeyMap     = make(map[string][]string)
			columns = e.Columns
		)

		for _, column := range columns {
			if column.Constraint != nil {
				if column.Constraint.Primary {
					primaryColumnSet.Add(column.Name)
				}

				if column.Constraint.Unique {
					indexName := indexNameGen(column.Name, "unique")
					uniqueKeyMap[indexName] = []string{column.Name}
				}

				if column.Constraint.Key {
					indexName := indexNameGen(column.Name, "idx")
					uniqueKeyMap[indexName] = []string{column.Name}
				}
			}
		}

		for _, e := range e.Constraints {
			if len(e.ColumnPrimaryKey) > 1 {
				return nil, fmt.Errorf("%s: unexpected join primary key", prefix)
			}

			if len(e.ColumnPrimaryKey) == 1 {
				primaryColumn = e.ColumnPrimaryKey[0]
				primaryColumnSet.Add(e.ColumnPrimaryKey[0])
			}

			if len(e.ColumnUniqueKey) > 0 {
				list := append([]string(nil), e.ColumnUniqueKey...)
				list = append(list, "unique")
				indexName := indexNameGen(list...)
				uniqueKeyMap[indexName] = e.ColumnUniqueKey
			}