76 lines
1.4 KiB
Go
76 lines
1.4 KiB
Go
package postgres_metadata
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import (
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"database/sql"
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"fmt"
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"github.com/sub0zero/go-sqlbuilder/generator/metadata"
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)
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type SchemaInfo struct {
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DatabaseName string
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Name string
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TableInfos []metadata.MetaData
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EnumInfos []metadata.MetaData
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}
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func GetSchemaInfo(db *sql.DB, databaseName, schemaName string) (schemaInfo SchemaInfo, err error) {
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schemaInfo.DatabaseName = databaseName
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schemaInfo.Name = schemaName
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schemaInfo.TableInfos, err = getTableInfos(db, databaseName, schemaName)
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if err != nil {
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return
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}
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schemaInfo.EnumInfos, err = getEnumInfos(db, schemaName)
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if err != nil {
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return
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}
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return
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}
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func getTableInfos(db *sql.DB, dbName, schemaName string) ([]metadata.MetaData, error) {
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query := `
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SELECT table_name
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FROM information_schema.tables
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where table_catalog = $1 and table_schema = $2 and table_type = 'BASE TABLE';`
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rows, err := db.Query(query, dbName, 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.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, dbName, 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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fmt.Println("FOUND", len(ret), "tables")
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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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