152 lines
3.2 KiB
Go
152 lines
3.2 KiB
Go
/* Copyright Azareal 2017 - 2018 */
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package main
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import (
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"fmt"
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"bytes"
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"strings"
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"strconv"
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"io/ioutil"
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"path/filepath"
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"database/sql"
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"../query_gen/lib"
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_ "github.com/go-sql-driver/mysql"
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)
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//var db_collation string = "utf8mb4_general_ci"
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func _set_mysql_adapter() {
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db_port = "3306"
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init_database = _init_mysql
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table_defs = _table_defs_mysql
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initial_data = _initial_data_mysql
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}
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func _init_mysql() (err error) {
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_db_password := db_password
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if _db_password != "" {
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_db_password = ":" + _db_password
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}
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db, err = sql.Open("mysql",db_username + _db_password + "@tcp(" + db_host + ":" + db_port + ")/")
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if err != nil {
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return err
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}
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// Make sure that the connection is alive..
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err = db.Ping()
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if err != nil {
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return err
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}
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fmt.Println("Successfully connected to the database")
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var waste string
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err = db.QueryRow("SHOW DATABASES LIKE '" + db_name + "'").Scan(&waste)
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if err != nil && err != sql.ErrNoRows {
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return err
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}
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if err == sql.ErrNoRows {
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fmt.Println("Unable to find the database. Attempting to create it")
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_,err = db.Exec("CREATE DATABASE IF NOT EXISTS " + db_name + "")
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if err != nil {
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return err
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}
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fmt.Println("The database was successfully created")
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}
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fmt.Println("Switching to database " + db_name)
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_, err = db.Exec("USE " + db_name)
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if err != nil {
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return err
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}
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// Ready the query builder
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qgen.Builder.SetConn(db)
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err = qgen.Builder.SetAdapter("mysql")
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if err != nil {
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return err
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}
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return nil
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}
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func _table_defs_mysql() error {
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//fmt.Println("Creating the tables")
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files, _ := ioutil.ReadDir("./schema/mysql/")
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for _, f := range files {
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if !strings.HasPrefix(f.Name(),"query_") {
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continue
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}
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var table string
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var ext string
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table = strings.TrimPrefix(f.Name(),"query_")
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ext = filepath.Ext(table)
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if ext != ".sql" {
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continue
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}
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table = strings.TrimSuffix(table,ext)
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fmt.Println("Creating table '" + table + "'")
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data, err := ioutil.ReadFile("./schema/mysql/" + f.Name())
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if err != nil {
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return err
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}
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data = bytes.TrimSpace(data)
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_, err = db.Exec(string(data))
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if err != nil {
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fmt.Println("Failed query:",string(data))
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return err
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}
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}
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//fmt.Println("Finished creating the tables")
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return nil
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}
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func _initial_data_mysql() error {
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return nil // Coming Soon
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fmt.Println("Seeding the tables")
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data, err := ioutil.ReadFile("./schema/mysql/inserts.sql")
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if err != nil {
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return err
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}
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data = bytes.TrimSpace(data)
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fmt.Println("Executing query",string(data))
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_, err = db.Exec(string(data))
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if err != nil {
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return err
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}
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//fmt.Println("Finished inserting the database data")
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return nil
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}
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func _mysql_seed_database() error {
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fmt.Println("Opening the database seed file")
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sqlContents, err := ioutil.ReadFile("./mysql.sql")
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if err != nil {
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return err
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}
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fmt.Println("Preparing installation queries")
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sqlContents = bytes.TrimSpace(sqlContents)
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statements := bytes.Split(sqlContents, []byte(";"))
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for key, statement := range statements {
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if len(statement) == 0 {
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continue
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}
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fmt.Println("Executing query #" + strconv.Itoa(key) + " " + string(statement))
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_, err = db.Exec(string(statement))
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if err != nil {
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return err
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}
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}
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fmt.Println("Finished inserting the database data")
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return nil
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}
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