解析入口，解析结果写入Model
(sql string)
| 32 | |
| 33 | // 解析入口，解析结果写入Model |
| 34 | func (p *Parser) ParseSQL(sql string) error { |
| 35 | // sql解析 |
| 36 | stmt, err := sqlparser.Parse(sql) |
| 37 | if err != nil { |
| 38 | return err |
| 39 | } |
| 40 | |
| 41 | pStmt := stmt.(*sqlparser.Select) |
| 42 | // From解析 |
| 43 | if pStmt.From != nil { |
| 44 | fromErr := p.Engine.TransFrom(pStmt.From) |
| 45 | if fromErr != nil { |
| 46 | return fromErr |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | // DerivativeGroupBy解析 |
| 51 | if pStmt.GroupBy != nil { |
| 52 | groupErr := p.Engine.TransDerivativeGroupBy(pStmt.GroupBy) |
| 53 | if groupErr != nil { |
| 54 | return groupErr |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | // Select解析 |
| 59 | var selectErr error |
| 60 | if pStmt.SelectExprs != nil { |
| 61 | selectErr = p.Engine.TransSelect(pStmt.SelectExprs) |
| 62 | if selectErr != nil { |
| 63 | return selectErr |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | // Where 解析 |
| 68 | if pStmt.Where != nil { |
| 69 | whereErr := p.Engine.TransWhere(pStmt.Where) |
| 70 | if whereErr != nil { |
| 71 | return whereErr |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | // GroupBy解析 |
| 76 | if pStmt.GroupBy != nil { |
| 77 | groupErr := p.Engine.TransGroupBy(pStmt.GroupBy) |
| 78 | if groupErr != nil { |
| 79 | return groupErr |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | if pStmt.Having != nil { |
| 84 | havingErr := p.Engine.TransHaving(pStmt.Having) |
| 85 | if havingErr != nil { |
| 86 | return havingErr |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | // OrderBy解析 |
| 91 | if pStmt.OrderBy != nil { |