Initial commit

builder_postgres.go

@@ -0,0 +1,54 @@
+package gorose
+
+import (
+	"fmt"
+	"regexp"
+)
+
+const (
+	// DriverPostgres ...
+	DriverPostgres = "postgres"
+)
+
+// BuilderPostgres ...
+type BuilderPostgres struct {
+	//IOrm
+	driver string
+}
+
+// sqlstr := fmt.Sprintf("SELECT %s%s FROM %s%s%s%s%s%s%s%s",
+//		distinct, fields, table, join, where, group, having, order, limit, offset)
+// select {distinct} {fields} from {table} {join} {where} {group} {having} {order} {limit} {offset}
+// {execute} {table} {data} {where}
+func init() {
+	var builder = &BuilderPostgres{driver: DriverPostgres}
+	NewBuilderDriver().Register(DriverPostgres, builder)
+}
+
+// NewBuilderPostgres ...
+func NewBuilderPostgres() *BuilderPostgres {
+	return new(BuilderPostgres)
+}
+
+// Clone : a new obj
+func (b *BuilderPostgres) Clone() IBuilder {
+	return &BuilderPostgres{driver: DriverPostgres}
+}
+
+// BuildQuery : build query sql string
+func (b *BuilderPostgres) BuildQuery(o IOrm) (sqlStr string, args []interface{}, err error) {
+	return NewBuilderDefault(o, NewBuilderPostgres()).SetDriver(b.driver).BuildQuery()
+}
+
+// BuildExecut : build execute sql string
+func (b *BuilderPostgres) BuildExecute(o IOrm, operType string) (sqlStr string, args []interface{}, err error) {
+	return NewBuilderDefault(o, NewBuilderPostgres()).SetDriver(b.driver).BuildExecute(operType)
+}
+
+func (*BuilderPostgres) AddFieldQuotes(field string) string {
+	reg := regexp.MustCompile(`^\w+$`)
+	if reg.MatchString(field) {
+		return fmt.Sprintf(`"%s"`, field)
+	}
+	return field
+}