mirror of
https://github.com/beego/bee.git
synced 2024-11-24 23:30:55 +00:00
89 lines
2.2 KiB
Go
89 lines
2.2 KiB
Go
package beegopro
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import (
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"database/sql"
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"fmt"
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"github.com/beego/bee/v2/internal/pkg/utils"
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beeLogger "github.com/beego/bee/v2/logger"
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)
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type MysqlParser struct {
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userOption UserOption
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tmplOption TmplOption
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}
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func (m *MysqlParser) RegisterOption(userOption UserOption, tmplOption TmplOption) {
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m.userOption = userOption
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m.tmplOption = tmplOption
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}
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func (*MysqlParser) Parse(descriptor Descriptor) {
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}
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func (m *MysqlParser) GetRenderInfos(descriptor Descriptor) (output []RenderInfo) {
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tableSchemas, err := m.getTableSchemas()
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if err != nil {
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beeLogger.Log.Fatalf("get table schemas err %s", err)
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}
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models := tableSchemas.ToTableMap()
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output = make([]RenderInfo, 0)
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// model table name, model table schema
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for modelName, content := range models {
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output = append(output, RenderInfo{
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Module: descriptor.Module,
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ModelName: modelName,
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Content: content,
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Option: m.userOption,
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Descriptor: descriptor,
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TmplPath: m.tmplOption.RenderPath,
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})
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}
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return
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}
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func (t *MysqlParser) Unregister() {
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}
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func (m *MysqlParser) getTableSchemas() (resp TableSchemas, err error) {
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dsn, err := utils.ParseDSN(m.userOption.Dsn)
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if err != nil {
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beeLogger.Log.Fatalf("parse dsn err %s", err)
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return
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}
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conn, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/information_schema", dsn.User, dsn.Passwd, dsn.Addr))
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if err != nil {
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beeLogger.Log.Fatalf("Could not connect to mysql database using '%s': %s", m.userOption.Dsn, err)
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return
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}
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defer conn.Close()
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q := `SELECT TABLE_NAME, COLUMN_NAME, IS_NULLABLE, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH,
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NUMERIC_PRECISION, NUMERIC_SCALE,COLUMN_TYPE,COLUMN_KEY,COLUMN_COMMENT
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FROM COLUMNS WHERE TABLE_SCHEMA = ? ORDER BY TABLE_NAME, ORDINAL_POSITION`
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rows, err := conn.Query(q, dsn.DBName)
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if err != nil {
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return nil, err
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}
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columns := make(TableSchemas, 0)
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for rows.Next() {
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cs := TableSchema{}
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err := rows.Scan(&cs.TableName, &cs.ColumnName, &cs.IsNullable, &cs.DataType,
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&cs.CharacterMaximumLength, &cs.NumericPrecision, &cs.NumericScale,
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&cs.ColumnType, &cs.ColumnKey, &cs.Comment)
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if err != nil {
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return nil, err
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}
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columns = append(columns, cs)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return columns, nil
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}
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