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add more sql keywords

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This commit is contained in:
ZhengYang
2014-09-11 13:48:39 +08:00
parent 9013f5c6c7
commit ccab9a7044
2 changed files with 56 additions and 22 deletions
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73
orm/qb_mysql.go
View File

@@ -20,95 +20,124 @@ import (
"strings"
)
const COMMA_SPACE = ", "
type MySQLQueryBuilder struct {
QueryTokens []string
Tokens []string
}
func (qb *MySQLQueryBuilder) Select(fields ...string) QueryBuilder {
segment := fmt.Sprintf("SELECT %s", strings.Join(fields, ", "))
qb.QueryTokens = append(qb.QueryTokens, segment)
qb.Tokens = append(qb.Tokens, "SELECT", strings.Join(fields, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) From(tables ...string) QueryBuilder {
segment := fmt.Sprintf("FROM %s", strings.Join(tables, ", "))
qb.QueryTokens = append(qb.QueryTokens, segment)
qb.Tokens = append(qb.Tokens, "FROM", strings.Join(tables, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) InnerJoin(table string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "INNER JOIN "+table)
qb.Tokens = append(qb.Tokens, "INNER JOIN", table)
return qb
}
func (qb *MySQLQueryBuilder) LeftJoin(table string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "LEFT JOIN "+table)
qb.Tokens = append(qb.Tokens, "LEFT JOIN", table)
return qb
}
func (qb *MySQLQueryBuilder) RightJoin(table string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "RIGHT JOIN "+table)
qb.Tokens = append(qb.Tokens, "RIGHT JOIN", table)
return qb
}
func (qb *MySQLQueryBuilder) On(cond string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "ON "+cond)
qb.Tokens = append(qb.Tokens, "ON", cond)
return qb
}
func (qb *MySQLQueryBuilder) Where(cond string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "WHERE "+cond)
qb.Tokens = append(qb.Tokens, "WHERE", cond)
return qb
}
func (qb *MySQLQueryBuilder) And(cond string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "AND "+cond)
qb.Tokens = append(qb.Tokens, "AND", cond)
return qb
}
func (qb *MySQLQueryBuilder) Or(cond string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "OR "+cond)
qb.Tokens = append(qb.Tokens, "OR", cond)
return qb
}
func (qb *MySQLQueryBuilder) In(vals ...string) QueryBuilder {
segment := fmt.Sprintf("IN (%s)", strings.Join(vals, ", "))
qb.QueryTokens = append(qb.QueryTokens, segment)
qb.Tokens = append(qb.Tokens, "IN", "(", strings.Join(vals, COMMA_SPACE), ")")
return qb
}
func (qb *MySQLQueryBuilder) OrderBy(fields ...string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "ORDER BY "+strings.Join(fields, ", "))
qb.Tokens = append(qb.Tokens, "ORDER BY", strings.Join(fields, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) Asc() QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "ASC")
qb.Tokens = append(qb.Tokens, "ASC")
return qb
}
func (qb *MySQLQueryBuilder) Desc() QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "DESC")
qb.Tokens = append(qb.Tokens, "DESC")
return qb
}
func (qb *MySQLQueryBuilder) Limit(limit int) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "LIMIT "+strconv.Itoa(limit))
qb.Tokens = append(qb.Tokens, "LIMIT", strconv.Itoa(limit))
return qb
}
func (qb *MySQLQueryBuilder) Offset(offset int) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "OFFSET "+strconv.Itoa(offset))
qb.Tokens = append(qb.Tokens, "OFFSET", strconv.Itoa(offset))
return qb
}
func (qb *MySQLQueryBuilder) GroupBy(fields ...string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "GROUP BY "+strings.Join(fields, ", "))
qb.Tokens = append(qb.Tokens, "GROUP BY", strings.Join(fields, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) Having(cond string) QueryBuilder {
qb.QueryTokens = append(qb.QueryTokens, "HAVING "+cond)
qb.Tokens = append(qb.Tokens, "HAVING", cond)
return qb
}
func (qb *MySQLQueryBuilder) Update(tables ...string) QueryBuilder {
qb.Tokens = append(qb.Tokens, "UPDATE", strings.Join(tables, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) Set(kv ...string) QueryBuilder {
qb.Tokens = append(qb.Tokens, "SET", strings.Join(kv, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) Delete(tables ...string) QueryBuilder {
qb.Tokens = append(qb.Tokens, "DELETE", strings.Join(tables, COMMA_SPACE))
return qb
}
func (qb *MySQLQueryBuilder) InsertInto(table string, fields ...string) QueryBuilder {
qb.Tokens = append(qb.Tokens, "INSERT INTO", table)
if len(fields) != 0 {
fieldsStr := strings.Join(fields, COMMA_SPACE)
qb.Tokens = append(qb.Tokens, "(", fieldsStr, ")")
}
return qb
}
func (qb *MySQLQueryBuilder) Values(vals ...string) QueryBuilder {
valsStr := strings.Join(vals, COMMA_SPACE)
qb.Tokens = append(qb.Tokens, "VALUES", "(", valsStr, ")")
return qb
}
@@ -117,5 +146,5 @@ func (qb *MySQLQueryBuilder) Subquery(sub string, alias string) string {
}
func (qb *MySQLQueryBuilder) String() string {
return strings.Join(qb.QueryTokens, " ")
return strings.Join(qb.Tokens, " ")
}