68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
package metadata
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import (
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"database/sql"
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"fmt"
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)
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// SchemaInfo metadata struct
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type SchemaInfo struct {
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TableInfos []MetaData
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EnumInfos []MetaData
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}
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// GetSchemaInfo returns schema information from db connection.
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func GetSchemaInfo(db *sql.DB, schemaName string, querySet MetaDataQuerySet) (schemaInfo SchemaInfo, err error) {
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schemaInfo.TableInfos, err = getTableInfos(db, querySet, schemaName)
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if err != nil {
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return
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}
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schemaInfo.EnumInfos, err = querySet.GetEnumsMetaData(db, schemaName)
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if err != nil {
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return
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}
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fmt.Println(" FOUND", len(schemaInfo.TableInfos), "table(s), ", len(schemaInfo.EnumInfos), "enum(s)")
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return
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}
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func getTableInfos(db *sql.DB, querySet MetaDataQuerySet, schemaName string) ([]MetaData, error) {
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rows, err := db.Query(querySet.ListOfTablesQuery(), schemaName)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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ret := []MetaData{}
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for rows.Next() {
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var tableName string
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err = rows.Scan(&tableName)
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if err != nil {
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return nil, err
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}
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tableInfo, err := GetTableInfo(db, querySet, schemaName, tableName)
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if err != nil {
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return nil, err
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}
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ret = append(ret, tableInfo)
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}
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err = rows.Err()
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if err != nil {
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return nil, err
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}
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return ret, nil
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}
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