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Code Issues Releases Activity

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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5
orm/qb.go
View File

@ -34,6 +34,11 @@ type QueryBuilder interface {
Offset(offset int) QueryBuilder
GroupBy(fields ...string) QueryBuilder
Having(cond string) QueryBuilder
Update(tables ...string) QueryBuilder
Set(kv ...string) QueryBuilder
Delete(tables ...string) QueryBuilder
InsertInto(table string, fields ...string) QueryBuilder
Values(vals ...string) QueryBuilder
Subquery(sub string, alias string) string
String() string
}

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, " ")
}