1236 lines
40 KiB
Go
1236 lines
40 KiB
Go
/* WIP Under Really Heavy Construction */
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package qgen
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import (
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"database/sql"
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"errors"
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"log"
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"strconv"
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"strings"
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)
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func init() {
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Registry = append(Registry,
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&MssqlAdapter{Name: "mssql", Buffer: make(map[string]DBStmt)},
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)
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}
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type MssqlAdapter struct {
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Name string // ? - Do we really need this? Can't we hard-code this?
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Buffer map[string]DBStmt
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BufferOrder []string // Map iteration order is random, so we need this to track the order, so we don't get huge diffs every commit
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keys map[string]string
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}
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// GetName gives you the name of the database adapter. In this case, it's Mssql
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func (a *MssqlAdapter) GetName() string {
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return a.Name
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}
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func (a *MssqlAdapter) GetStmt(name string) DBStmt {
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return a.Buffer[name]
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}
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func (a *MssqlAdapter) GetStmts() map[string]DBStmt {
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return a.Buffer
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}
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// TODO: Implement this
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func (a *MssqlAdapter) BuildConn(config map[string]string) (*sql.DB, error) {
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return nil, nil
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}
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func (a *MssqlAdapter) DbVersion() string {
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return "SELECT CONCAT(SERVERPROPERTY('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition'))"
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}
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func (a *MssqlAdapter) DropTable(name, table string) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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q := "DROP TABLE IF EXISTS [" + table + "];"
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a.pushStatement(name, "drop-table", q)
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return q, nil
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}
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// TODO: Add support for foreign keys?
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// TODO: Convert any remaining stringy types to nvarchar
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// We may need to change the CreateTable API to better suit Mssql and the other database drivers which are coming up
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func (a *MssqlAdapter) CreateTable(name, table, charset, collation string, columns []DBTableColumn, keys []DBTableKey) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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if len(columns) == 0 {
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return "", errors.New("You can't have a table with no columns")
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}
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q := "CREATE TABLE [" + table + "] ("
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for _, column := range columns {
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column, size, end := a.parseColumn(column)
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q += "\n\t[" + column.Name + "] " + column.Type + size + end + ","
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}
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if len(keys) > 0 {
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for _, key := range keys {
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q += "\n\t" + key.Type
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if key.Type != "unique" {
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q += " key"
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}
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q += "("
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for _, column := range strings.Split(key.Columns, ",") {
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q += "[" + column + "],"
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}
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q = q[0:len(q)-1] + "),"
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}
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}
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q = q[0:len(q)-1] + "\n);"
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a.pushStatement(name, "create-table", q)
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return q, nil
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}
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func (a *MssqlAdapter) parseColumn(column DBTableColumn) (col DBTableColumn, size string, end string) {
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var max, createdAt bool
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switch column.Type {
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case "createdAt":
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column.Type = "datetime"
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createdAt = true
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case "varchar":
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column.Type = "nvarchar"
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case "text":
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column.Type = "nvarchar"
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max = true
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case "json":
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column.Type = "nvarchar"
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max = true
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case "boolean":
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column.Type = "bit"
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}
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if column.Size > 0 {
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size = " (" + strconv.Itoa(column.Size) + ")"
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}
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if max {
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size = " (MAX)"
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}
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if column.Default != "" {
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end = " DEFAULT "
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if createdAt {
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end += "GETUTCDATE()" // TODO: Use GETUTCDATE() in updates instead of the neutral format
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} else if a.stringyType(column.Type) && column.Default != "''" {
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end += "'" + column.Default + "'"
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} else {
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end += column.Default
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}
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}
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if !column.Null {
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end += " not null"
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}
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// ! Not exactly the meaning of auto increment...
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if column.AutoIncrement {
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end += " IDENTITY"
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}
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return column, size, end
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}
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// TODO: Test this, not sure if some things work
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// TODO: Add support for keys
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func (a *MssqlAdapter) AddColumn(name, table string, column DBTableColumn, key *DBTableKey) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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column, size, end := a.parseColumn(column)
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q := "ALTER TABLE [" + table + "] ADD [" + column.Name + "] " + column.Type + size + end + ";"
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a.pushStatement(name, "add-column", q)
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return q, nil
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}
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// TODO: Implement this
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func (a *MssqlAdapter) DropColumn(name, table, colName string) (string, error) {
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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func (a *MssqlAdapter) RenameColumn(name, table, oldName, newName string) (string, error) {
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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func (a *MssqlAdapter) ChangeColumn(name, table, colName string, col DBTableColumn) (string, error) {
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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func (a *MssqlAdapter) SetDefaultColumn(name, table, colName, colType, defaultStr string) (string, error) {
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if colType == "text" {
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return "", errors.New("text fields cannot have default values")
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}
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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// TODO: Test to make sure everything works here
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func (a *MssqlAdapter) AddIndex(name, table, iname, colname string) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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if iname == "" {
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return "", errors.New("You need a name for the index")
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}
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if colname == "" {
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return "", errors.New("You need a name for the column")
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}
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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// TODO: Test to make sure everything works here
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func (a *MssqlAdapter) AddKey(name, table, column string, key DBTableKey) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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if column == "" {
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return "", errors.New("You need a name for the column")
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}
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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// TODO: Test to make sure everything works here
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func (a *MssqlAdapter) RemoveIndex(name, table, iname string) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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if iname == "" {
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return "", errors.New("You need a name for the index")
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}
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return "", errors.New("not implemented")
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}
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// TODO: Implement this
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// TODO: Test to make sure everything works here
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func (a *MssqlAdapter) AddForeignKey(name, table, column, ftable, fcolumn string, cascade bool) (out string, e error) {
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c := func(str string, val bool) {
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if e != nil || !val {
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return
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}
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e = errors.New("You need a " + str + " for this table")
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}
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c("name", table == "")
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c("column", column == "")
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c("ftable", ftable == "")
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c("fcolumn", fcolumn == "")
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if e != nil {
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return "", e
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}
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return "", errors.New("not implemented")
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}
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func (a *MssqlAdapter) SimpleInsert(name, table, cols, fields string) (string, error) {
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q, err := a.simpleBulkInsert(name, table, cols, []string{fields})
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a.pushStatement(name, "insert", q)
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return q, err
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}
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func (a *MssqlAdapter) SimpleBulkInsert(name, table, cols string, fieldSet []string) (string, error) {
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q, err := a.simpleBulkInsert(name, table, cols, fieldSet)
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a.pushStatement(name, "bulk-insert", q)
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return q, err
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}
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func (a *MssqlAdapter) simpleBulkInsert(name, table, cols string, fieldSet []string) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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q := "INSERT INTO [" + table + "] ("
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if cols == "" {
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q += ") VALUES ()"
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a.pushStatement(name, "insert", q)
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return q, nil
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}
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// Escape the column names, just in case we've used a reserved keyword
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for _, col := range processColumns(cols) {
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if col.Type == TokenFunc {
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q += col.Left + ","
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} else {
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q += "[" + col.Left + "],"
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}
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}
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q = q[0 : len(q)-1]
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q += ") VALUES ("
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for oi, fields := range fieldSet {
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if oi != 0 {
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q += ",("
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}
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for _, field := range processFields(fields) {
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field.Name = strings.Replace(field.Name, "UTC_TIMESTAMP()", "GETUTCDATE()", -1)
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//log.Print("field.Name ", field.Name)
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nameLen := len(field.Name)
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if field.Name[0] == '"' && field.Name[nameLen-1] == '"' && nameLen >= 3 {
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field.Name = "'" + field.Name[1:nameLen-1] + "'"
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}
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if field.Name[0] == '\'' && field.Name[nameLen-1] == '\'' && nameLen >= 3 {
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field.Name = "'" + strings.Replace(field.Name[1:nameLen-1], "'", "''", -1) + "'"
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}
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q += field.Name + ","
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}
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q = q[0:len(q)-1] + ")"
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}
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return q, nil
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}
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// ! DEPRECATED
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func (a *MssqlAdapter) SimpleReplace(name, table, columns, fields string) (string, error) {
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log.Print("In SimpleReplace")
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key, ok := a.keys[table]
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if !ok {
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return "", errors.New("Unable to elide key from table '" + table + "', please use SimpleUpsert (coming soon!) instead")
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}
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log.Print("After the key check")
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// Escape the column names, just in case we've used a reserved keyword
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var keyPosition int
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for _, column := range processColumns(columns) {
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if column.Left == key {
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continue
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}
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keyPosition++
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}
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var keyValue string
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for fieldID, field := range processFields(fields) {
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field.Name = strings.Replace(field.Name, "UTC_TIMESTAMP()", "GETUTCDATE()", -1)
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nameLen := len(field.Name)
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if field.Name[0] == '"' && field.Name[nameLen-1] == '"' && nameLen >= 3 {
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field.Name = "'" + field.Name[1:nameLen-1] + "'"
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}
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if field.Name[0] == '\'' && field.Name[nameLen-1] == '\'' && nameLen >= 3 {
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field.Name = "'" + strings.Replace(field.Name[1:nameLen-1], "'", "''", -1) + "'"
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}
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if keyPosition == fieldID {
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keyValue = field.Name
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continue
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}
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}
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return a.SimpleUpsert(name, table, columns, fields, "key = "+keyValue)
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}
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func (a *MssqlAdapter) SimpleUpsert(name, table, columns, fields, where string) (string, error) {
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if table == "" {
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return "", errors.New("You need a name for this table")
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}
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if len(columns) == 0 {
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return "", errors.New("No columns found for SimpleInsert")
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}
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if len(fields) == 0 {
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return "", errors.New("No input data found for SimpleInsert")
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}
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var fieldCount int
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var fieldOutput string
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q := "MERGE [" + table + "] WITH(HOLDLOCK) as t1 USING (VALUES("
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parsedFields := processFields(fields)
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for _, field := range parsedFields {
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fieldCount++
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field.Name = strings.Replace(field.Name, "UTC_TIMESTAMP()", "GETUTCDATE()", -1)
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//log.Print("field.Name ", field.Name)
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nameLen := len(field.Name)
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if field.Name[0] == '"' && field.Name[nameLen-1] == '"' && nameLen >= 3 {
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field.Name = "'" + field.Name[1:nameLen-1] + "'"
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}
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if field.Name[0] == '\'' && field.Name[nameLen-1] == '\'' && nameLen >= 3 {
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field.Name = "'" + strings.Replace(field.Name[1:nameLen-1], "'", "''", -1) + "'"
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}
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fieldOutput += field.Name + ","
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}
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fieldOutput = fieldOutput[0 : len(fieldOutput)-1]
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q += fieldOutput + ")) AS updates ("
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// nolint The linter wants this to be less readable
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for fieldID, _ := range parsedFields {
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q += "f" + strconv.Itoa(fieldID) + ","
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}
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q = q[0:len(q)-1] + ") ON "
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//querystr += "t1.[" + key + "] = "
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// Add support for BETWEEN x.x
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for _, loc := range processWhere(where) {
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for _, token := range loc.Expr {
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switch token.Type {
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case TokenSub:
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q += " ?"
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case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
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// TODO: Split the function case off to speed things up
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if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
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token.Contents = "GETUTCDATE()"
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}
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q += " " + token.Contents
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case TokenColumn:
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q += " [" + token.Contents + "]"
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case TokenString:
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q += " '" + token.Contents + "'"
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default:
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panic("This token doesn't exist o_o")
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}
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}
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}
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matched := " WHEN MATCHED THEN UPDATE SET "
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notMatched := "WHEN NOT MATCHED THEN INSERT("
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var fieldList string
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// Escape the column names, just in case we've used a reserved keyword
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for columnID, col := range processColumns(columns) {
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fieldList += "f" + strconv.Itoa(columnID) + ","
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if col.Type == TokenFunc {
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matched += col.Left + " = f" + strconv.Itoa(columnID) + ","
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notMatched += col.Left + ","
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} else {
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matched += "[" + col.Left + "] = f" + strconv.Itoa(columnID) + ","
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notMatched += "[" + col.Left + "],"
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}
|
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}
|
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matched = matched[0 : len(matched)-1]
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notMatched = notMatched[0 : len(notMatched)-1]
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fieldList = fieldList[0 : len(fieldList)-1]
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|
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notMatched += ") VALUES (" + fieldList + ");"
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q += matched + " " + notMatched
|
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|
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// TODO: Run this on debug mode?
|
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if name[0] == '_' {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "upsert", q)
|
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return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleUpdate(up *updatePrebuilder) (string, error) {
|
|
if up.table == "" {
|
|
return "", errors.New("You need a name for this table")
|
|
}
|
|
if up.set == "" {
|
|
return "", errors.New("You need to set data in this update statement")
|
|
}
|
|
|
|
q := "UPDATE [" + up.table + "] SET "
|
|
for _, item := range processSet(up.set) {
|
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q += "[" + item.Column + "]="
|
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for _, token := range item.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
q += " ?"
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
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q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(up.where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(up.where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenFunc, TokenOp, TokenNumber, TokenSub, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
a.pushStatement(up.name, "update", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleUpdateSelect(b *updatePrebuilder) (string, error) {
|
|
return "", errors.New("not implemented")
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleDelete(name string, table string, where string) (string, error) {
|
|
if table == "" {
|
|
return "", errors.New("You need a name for this table")
|
|
}
|
|
if where == "" {
|
|
return "", errors.New("You need to specify what data you want to delete")
|
|
}
|
|
q := "DELETE FROM [" + table + "] WHERE"
|
|
|
|
// Add support for BETWEEN x.x
|
|
for _, loc := range processWhere(where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
q += " ?"
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
|
|
q = strings.TrimSpace(q[0 : len(q)-4])
|
|
a.pushStatement(name, "delete", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) ComplexDelete(b *deletePrebuilder) (string, error) {
|
|
return "", errors.New("not implemented")
|
|
}
|
|
|
|
// We don't want to accidentally wipe tables, so we'll have a separate method for purging tables instead
|
|
func (a *MssqlAdapter) Purge(name string, table string) (string, error) {
|
|
if table == "" {
|
|
return "", errors.New("You need a name for this table")
|
|
}
|
|
q := "DELETE FROM [" + table + "]"
|
|
a.pushStatement(name, "purge", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleSelect(name string, table string, columns string, where string, orderby string, limit string) (string, error) {
|
|
if table == "" {
|
|
return "", errors.New("You need a name for this table")
|
|
}
|
|
if len(columns) == 0 {
|
|
return "", errors.New("No columns found for SimpleSelect")
|
|
}
|
|
// TODO: Add this to the MySQL adapter in order to make this problem more discoverable?
|
|
if len(orderby) == 0 && limit != "" {
|
|
return "", errors.New("Orderby needs to be set to use limit on Mssql")
|
|
}
|
|
subCount := 0
|
|
q := ""
|
|
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
colslice := strings.Split(strings.TrimSpace(columns), ",")
|
|
for _, column := range colslice {
|
|
q += "[" + strings.TrimSpace(column) + "],"
|
|
}
|
|
q = q[0:len(q)-1] + " FROM [" + table + "]"
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
subCount++
|
|
q += " ?" + strconv.Itoa(subCount)
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
// MSSQL seems to convert the formats? so we'll compare it with a regular date. Do this with the other methods too?
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
// TODO: MSSQL requires ORDER BY for LIMIT
|
|
if len(orderby) != 0 {
|
|
q += " ORDER BY "
|
|
for _, column := range processOrderby(orderby) {
|
|
// TODO: We might want to escape this column
|
|
q += column.Column + " " + strings.ToUpper(column.Order) + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
}
|
|
|
|
if limit != "" {
|
|
limiter := processLimit(limit)
|
|
log.Printf("limiter: %+v\n", limiter)
|
|
if limiter.Offset != "" {
|
|
if limiter.Offset == "?" {
|
|
subCount++
|
|
q += " OFFSET ?" + strconv.Itoa(subCount) + " ROWS"
|
|
} else {
|
|
q += " OFFSET " + limiter.Offset + " ROWS"
|
|
}
|
|
}
|
|
|
|
// ! Does this work without an offset?
|
|
if limiter.MaxCount != "" {
|
|
if limiter.MaxCount == "?" {
|
|
subCount++
|
|
limiter.MaxCount = "?" + strconv.Itoa(subCount)
|
|
}
|
|
q += " FETCH NEXT " + limiter.MaxCount + " ROWS ONLY "
|
|
}
|
|
}
|
|
|
|
q = strings.TrimSpace("SELECT " + q)
|
|
// TODO: Run this on debug mode?
|
|
if name[0] == '_' && limit == "" {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "select", q)
|
|
return q, nil
|
|
}
|
|
|
|
// TODO: ComplexSelect
|
|
func (a *MssqlAdapter) ComplexSelect(preBuilder *selectPrebuilder) (string, error) {
|
|
return "", nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleLeftJoin(name string, table1 string, table2 string, columns string, joiners string, where string, orderby string, limit string) (string, error) {
|
|
if table1 == "" {
|
|
return "", errors.New("You need a name for the left table")
|
|
}
|
|
if table2 == "" {
|
|
return "", errors.New("You need a name for the right table")
|
|
}
|
|
if len(columns) == 0 {
|
|
return "", errors.New("No columns found for SimpleLeftJoin")
|
|
}
|
|
if len(joiners) == 0 {
|
|
return "", errors.New("No joiners found for SimpleLeftJoin")
|
|
}
|
|
// TODO: Add this to the MySQL adapter in order to make this problem more discoverable?
|
|
if len(orderby) == 0 && limit != "" {
|
|
return "", errors.New("Orderby needs to be set to use limit on Mssql")
|
|
}
|
|
subCount := 0
|
|
q := ""
|
|
|
|
for _, col := range processColumns(columns) {
|
|
var source, alias string
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
if col.Table != "" {
|
|
source = "[" + col.Table + "].[" + col.Left + "]"
|
|
} else if col.Type == TokenFunc {
|
|
source = col.Left
|
|
} else {
|
|
source = "[" + col.Left + "]"
|
|
}
|
|
|
|
if col.Alias != "" {
|
|
alias = " AS '" + col.Alias + "'"
|
|
}
|
|
q += source + alias + ","
|
|
}
|
|
// Remove the trailing comma
|
|
q = q[0 : len(q)-1]
|
|
|
|
q += " FROM [" + table1 + "] LEFT JOIN [" + table2 + "] ON "
|
|
for _, j := range processJoiner(joiners) {
|
|
q += "[" + j.LeftTable + "].[" + j.LeftColumn + "]" + j.Operator + "[" + j.RightTable + "].[" + j.RightColumn + "] AND "
|
|
}
|
|
// Remove the trailing AND
|
|
q = q[0 : len(q)-4]
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
subCount++
|
|
q += " ?" + strconv.Itoa(subCount)
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
halves := strings.Split(token.Contents, ".")
|
|
if len(halves) == 2 {
|
|
q += " [" + halves[0] + "].[" + halves[1] + "]"
|
|
} else {
|
|
q += " [" + token.Contents + "]"
|
|
}
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
// TODO: MSSQL requires ORDER BY for LIMIT
|
|
if len(orderby) != 0 {
|
|
q += " ORDER BY "
|
|
for _, column := range processOrderby(orderby) {
|
|
log.Print("column: ", column)
|
|
// TODO: We might want to escape this column
|
|
q += column.Column + " " + strings.ToUpper(column.Order) + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
} else if limit != "" {
|
|
key, ok := a.keys[table1]
|
|
if ok {
|
|
q += " ORDER BY [" + table1 + "].[" + key + "]"
|
|
}
|
|
}
|
|
|
|
if limit != "" {
|
|
limiter := processLimit(limit)
|
|
if limiter.Offset != "" {
|
|
if limiter.Offset == "?" {
|
|
subCount++
|
|
q += " OFFSET ?" + strconv.Itoa(subCount) + " ROWS"
|
|
} else {
|
|
q += " OFFSET " + limiter.Offset + " ROWS"
|
|
}
|
|
}
|
|
|
|
// ! Does this work without an offset?
|
|
if limiter.MaxCount != "" {
|
|
if limiter.MaxCount == "?" {
|
|
subCount++
|
|
limiter.MaxCount = "?" + strconv.Itoa(subCount)
|
|
}
|
|
q += " FETCH NEXT " + limiter.MaxCount + " ROWS ONLY "
|
|
}
|
|
}
|
|
|
|
q = strings.TrimSpace("SELECT " + q)
|
|
// TODO: Run this on debug mode?
|
|
if name[0] == '_' && limit == "" {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "select", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleInnerJoin(name string, table1 string, table2 string, columns string, joiners string, where string, orderby string, limit string) (string, error) {
|
|
if table1 == "" {
|
|
return "", errors.New("You need a name for the left table")
|
|
}
|
|
if table2 == "" {
|
|
return "", errors.New("You need a name for the right table")
|
|
}
|
|
if len(columns) == 0 {
|
|
return "", errors.New("No columns found for SimpleInnerJoin")
|
|
}
|
|
if len(joiners) == 0 {
|
|
return "", errors.New("No joiners found for SimpleInnerJoin")
|
|
}
|
|
// TODO: Add this to the MySQL adapter in order to make this problem more discoverable?
|
|
if len(orderby) == 0 && limit != "" {
|
|
return "", errors.New("Orderby needs to be set to use limit on Mssql")
|
|
}
|
|
subCount := 0
|
|
q := ""
|
|
|
|
for _, col := range processColumns(columns) {
|
|
var source, alias string
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
if col.Table != "" {
|
|
source = "[" + col.Table + "].[" + col.Left + "]"
|
|
} else if col.Type == TokenFunc {
|
|
source = col.Left
|
|
} else {
|
|
source = "[" + col.Left + "]"
|
|
}
|
|
|
|
if col.Alias != "" {
|
|
alias = " AS '" + col.Alias + "'"
|
|
}
|
|
q += source + alias + ","
|
|
}
|
|
// Remove the trailing comma
|
|
q = q[0 : len(q)-1]
|
|
|
|
q += " FROM [" + table1 + "] INNER JOIN [" + table2 + "] ON "
|
|
for _, j := range processJoiner(joiners) {
|
|
q += "[" + j.LeftTable + "].[" + j.LeftColumn + "]" + j.Operator + "[" + j.RightTable + "].[" + j.RightColumn + "] AND "
|
|
}
|
|
// Remove the trailing AND
|
|
q = q[0 : len(q)-4]
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
subCount++
|
|
q += " ?" + strconv.Itoa(subCount)
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
halves := strings.Split(token.Contents, ".")
|
|
if len(halves) == 2 {
|
|
q += " [" + halves[0] + "].[" + halves[1] + "]"
|
|
} else {
|
|
q += " [" + token.Contents + "]"
|
|
}
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
// TODO: MSSQL requires ORDER BY for LIMIT
|
|
if len(orderby) != 0 {
|
|
q += " ORDER BY "
|
|
for _, column := range processOrderby(orderby) {
|
|
log.Print("column: ", column)
|
|
// TODO: We might want to escape this column
|
|
q += column.Column + " " + strings.ToUpper(column.Order) + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
} else if limit != "" {
|
|
key, ok := a.keys[table1]
|
|
if ok {
|
|
log.Print("key: ", key)
|
|
q += " ORDER BY [" + table1 + "].[" + key + "]"
|
|
}
|
|
}
|
|
|
|
if limit != "" {
|
|
limiter := processLimit(limit)
|
|
if limiter.Offset != "" {
|
|
if limiter.Offset == "?" {
|
|
subCount++
|
|
q += " OFFSET ?" + strconv.Itoa(subCount) + " ROWS"
|
|
} else {
|
|
q += " OFFSET " + limiter.Offset + " ROWS"
|
|
}
|
|
}
|
|
|
|
// ! Does this work without an offset?
|
|
if limiter.MaxCount != "" {
|
|
if limiter.MaxCount == "?" {
|
|
subCount++
|
|
limiter.MaxCount = "?" + strconv.Itoa(subCount)
|
|
}
|
|
q += " FETCH NEXT " + limiter.MaxCount + " ROWS ONLY "
|
|
}
|
|
}
|
|
|
|
q = strings.TrimSpace("SELECT " + q)
|
|
// TODO: Run this on debug mode?
|
|
if name[0] == '_' && limit == "" {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "select", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleInsertSelect(name string, ins DBInsert, sel DBSelect) (string, error) {
|
|
// TODO: More errors.
|
|
// TODO: Add this to the MySQL adapter in order to make this problem more discoverable?
|
|
if len(sel.Orderby) == 0 && sel.Limit != "" {
|
|
return "", errors.New("Orderby needs to be set to use limit on Mssql")
|
|
}
|
|
|
|
/* Insert */
|
|
q := "INSERT INTO [" + ins.Table + "] ("
|
|
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
for _, col := range processColumns(ins.Columns) {
|
|
if col.Type == TokenFunc {
|
|
q += col.Left + ","
|
|
} else {
|
|
q += "[" + col.Left + "],"
|
|
}
|
|
}
|
|
q = q[0:len(q)-1] + ") SELECT "
|
|
|
|
/* Select */
|
|
subCount := 0
|
|
|
|
for _, col := range processColumns(sel.Columns) {
|
|
var source, alias string
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
if col.Type == TokenFunc || col.Type == TokenSub {
|
|
source = col.Left
|
|
} else {
|
|
source = "[" + col.Left + "]"
|
|
}
|
|
if col.Alias != "" {
|
|
alias = " AS [" + col.Alias + "]"
|
|
}
|
|
q += " " + source + alias + ","
|
|
}
|
|
q = q[0:len(q)-1] + " FROM [" + sel.Table + "] "
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(sel.Where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(sel.Where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
subCount++
|
|
q += " ?" + strconv.Itoa(subCount)
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
// TODO: MSSQL requires ORDER BY for LIMIT
|
|
if len(sel.Orderby) != 0 {
|
|
q += " ORDER BY "
|
|
for _, column := range processOrderby(sel.Orderby) {
|
|
// TODO: We might want to escape this column
|
|
q += column.Column + " " + strings.ToUpper(column.Order) + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
} else if sel.Limit != "" {
|
|
key, ok := a.keys[sel.Table]
|
|
if ok {
|
|
q += " ORDER BY [" + sel.Table + "].[" + key + "]"
|
|
}
|
|
}
|
|
|
|
if sel.Limit != "" {
|
|
limiter := processLimit(sel.Limit)
|
|
if limiter.Offset != "" {
|
|
if limiter.Offset == "?" {
|
|
subCount++
|
|
q += " OFFSET ?" + strconv.Itoa(subCount) + " ROWS"
|
|
} else {
|
|
q += " OFFSET " + limiter.Offset + " ROWS"
|
|
}
|
|
}
|
|
|
|
// ! Does this work without an offset?
|
|
if limiter.MaxCount != "" {
|
|
if limiter.MaxCount == "?" {
|
|
subCount++
|
|
limiter.MaxCount = "?" + strconv.Itoa(subCount)
|
|
}
|
|
q += " FETCH NEXT " + limiter.MaxCount + " ROWS ONLY "
|
|
}
|
|
}
|
|
|
|
q = strings.TrimSpace(q)
|
|
// TODO: Run this on debug mode?
|
|
if name[0] == '_' && sel.Limit == "" {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "insert", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) simpleJoin(name string, ins DBInsert, sel DBJoin, joinType string) (string, error) {
|
|
// TODO: More errors.
|
|
// TODO: Add this to the MySQL adapter in order to make this problem more discoverable?
|
|
if len(sel.Orderby) == 0 && sel.Limit != "" {
|
|
return "", errors.New("Orderby needs to be set to use limit on Mssql")
|
|
}
|
|
|
|
/* Insert */
|
|
q := "INSERT INTO [" + ins.Table + "] ("
|
|
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
for _, col := range processColumns(ins.Columns) {
|
|
if col.Type == TokenFunc {
|
|
q += col.Left + ","
|
|
} else {
|
|
q += "[" + col.Left + "],"
|
|
}
|
|
}
|
|
q = q[0:len(q)-1] + ") SELECT "
|
|
|
|
/* Select */
|
|
subCount := 0
|
|
|
|
for _, col := range processColumns(sel.Columns) {
|
|
var source, alias string
|
|
// Escape the column names, just in case we've used a reserved keyword
|
|
if col.Table != "" {
|
|
source = "[" + col.Table + "].[" + col.Left + "]"
|
|
} else if col.Type == TokenFunc {
|
|
source = col.Left
|
|
} else {
|
|
source = "[" + col.Left + "]"
|
|
}
|
|
if col.Alias != "" {
|
|
alias = " AS '" + col.Alias + "'"
|
|
}
|
|
q += source + alias + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
|
|
q += " FROM [" + sel.Table1 + "] " + joinType + " JOIN [" + sel.Table2 + "] ON "
|
|
for _, j := range processJoiner(sel.Joiners) {
|
|
q += "[" + j.LeftTable + "].[" + j.LeftColumn + "] " + j.Operator + " [" + j.RightTable + "].[" + j.RightColumn + "] AND "
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
|
|
// Add support for BETWEEN x.x
|
|
if len(sel.Where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(sel.Where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenSub:
|
|
subCount++
|
|
q += " ?" + strconv.Itoa(subCount)
|
|
case TokenFunc, TokenOp, TokenNumber, TokenOr, TokenNot, TokenLike:
|
|
// TODO: Split the function case off to speed things up
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
halves := strings.Split(token.Contents, ".")
|
|
if len(halves) == 2 {
|
|
q += " [" + halves[0] + "].[" + halves[1] + "]"
|
|
} else {
|
|
q += " [" + token.Contents + "]"
|
|
}
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
|
|
// TODO: MSSQL requires ORDER BY for LIMIT
|
|
if len(sel.Orderby) != 0 {
|
|
q += " ORDER BY "
|
|
for _, column := range processOrderby(sel.Orderby) {
|
|
log.Print("column: ", column)
|
|
// TODO: We might want to escape this column
|
|
q += column.Column + " " + strings.ToUpper(column.Order) + ","
|
|
}
|
|
q = q[0 : len(q)-1]
|
|
} else if sel.Limit != "" {
|
|
key, ok := a.keys[sel.Table1]
|
|
if ok {
|
|
q += " ORDER BY [" + sel.Table1 + "].[" + key + "]"
|
|
}
|
|
}
|
|
|
|
if sel.Limit != "" {
|
|
limiter := processLimit(sel.Limit)
|
|
if limiter.Offset != "" {
|
|
if limiter.Offset == "?" {
|
|
subCount++
|
|
q += " OFFSET ?" + strconv.Itoa(subCount) + " ROWS"
|
|
} else {
|
|
q += " OFFSET " + limiter.Offset + " ROWS"
|
|
}
|
|
}
|
|
|
|
// ! Does this work without an offset?
|
|
if limiter.MaxCount != "" {
|
|
if limiter.MaxCount == "?" {
|
|
subCount++
|
|
limiter.MaxCount = "?" + strconv.Itoa(subCount)
|
|
}
|
|
q += " FETCH NEXT " + limiter.MaxCount + " ROWS ONLY "
|
|
}
|
|
}
|
|
|
|
q = strings.TrimSpace(q)
|
|
// TODO: Run this on debug mode?
|
|
if name[0] == '_' && sel.Limit == "" {
|
|
log.Print(name+" query: ", q)
|
|
}
|
|
a.pushStatement(name, "insert", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleInsertLeftJoin(name string, ins DBInsert, sel DBJoin) (string, error) {
|
|
return a.simpleJoin(name, ins, sel, "LEFT")
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleInsertInnerJoin(name string, ins DBInsert, sel DBJoin) (string, error) {
|
|
return a.simpleJoin(name, ins, sel, "INNER")
|
|
}
|
|
|
|
func (a *MssqlAdapter) SimpleCount(name, table, where, limit string) (string, error) {
|
|
if table == "" {
|
|
return "", errors.New("You need a name for this table")
|
|
}
|
|
q := "SELECT COUNT(*) FROM [" + table + "]"
|
|
|
|
// TODO: Add support for BETWEEN x.x
|
|
if len(where) != 0 {
|
|
q += " WHERE"
|
|
for _, loc := range processWhere(where) {
|
|
for _, token := range loc.Expr {
|
|
switch token.Type {
|
|
case TokenFunc, TokenOp, TokenNumber, TokenSub, TokenOr, TokenNot, TokenLike:
|
|
if strings.ToUpper(token.Contents) == "UTC_TIMESTAMP()" {
|
|
token.Contents = "GETUTCDATE()"
|
|
}
|
|
q += " " + token.Contents
|
|
case TokenColumn:
|
|
q += " [" + token.Contents + "]"
|
|
case TokenString:
|
|
q += " '" + token.Contents + "'"
|
|
default:
|
|
panic("This token doesn't exist o_o")
|
|
}
|
|
}
|
|
q += " AND"
|
|
}
|
|
q = q[0 : len(q)-4]
|
|
}
|
|
if limit != "" {
|
|
q += " LIMIT " + limit
|
|
}
|
|
|
|
q = strings.TrimSpace(q)
|
|
a.pushStatement(name, "select", q)
|
|
return q, nil
|
|
}
|
|
|
|
func (a *MssqlAdapter) Builder() *prebuilder {
|
|
return &prebuilder{a}
|
|
}
|
|
|
|
func (a *MssqlAdapter) Write() error {
|
|
var stmts, body string
|
|
for _, name := range a.BufferOrder {
|
|
if name == "" {
|
|
continue
|
|
}
|
|
stmt := a.Buffer[name]
|
|
// TODO: Add support for create-table? Table creation might be a little complex for Go to do outside a SQL file :(
|
|
if stmt.Type != "create-table" {
|
|
stmts += "\t" + name + " *sql.Stmt\n"
|
|
body += `
|
|
common.DebugLog("Preparing ` + name + ` statement.")
|
|
stmts.` + name + `, err = db.Prepare("` + stmt.Contents + `")
|
|
if err != nil {
|
|
log.Print("Error in ` + name + ` statement.")
|
|
log.Print("Bad Query: ","` + stmt.Contents + `")
|
|
return err
|
|
}
|
|
`
|
|
}
|
|
}
|
|
|
|
// TODO: Move these custom queries out of this file
|
|
out := `// +build mssql
|
|
|
|
// This file was generated by Gosora's Query Generator. Please try to avoid modifying this file, as it might change at any time.
|
|
package main
|
|
|
|
import "log"
|
|
import "database/sql"
|
|
import "github.com/Azareal/Gosora/common"
|
|
|
|
// nolint
|
|
type Stmts struct {
|
|
` + stmts + `
|
|
getActivityFeedByWatcher *sql.Stmt
|
|
getActivityCountByWatcher *sql.Stmt
|
|
|
|
Mocks bool
|
|
}
|
|
|
|
// nolint
|
|
func _gen_mssql() (err error) {
|
|
common.DebugLog("Building the generated statements")
|
|
` + body + `
|
|
return nil
|
|
}
|
|
`
|
|
return writeFile("./gen_mssql.go", out)
|
|
}
|
|
|
|
// Internal methods, not exposed in the interface
|
|
func (a *MssqlAdapter) pushStatement(name, stype, q string) {
|
|
if name == "" {
|
|
return
|
|
}
|
|
a.Buffer[name] = DBStmt{q, stype}
|
|
a.BufferOrder = append(a.BufferOrder, name)
|
|
}
|
|
|
|
func (a *MssqlAdapter) stringyType(ct string) bool {
|
|
ct = strings.ToLower(ct)
|
|
return ct == "char" || ct == "varchar" || ct == "datetime" || ct == "text" || ct == "nvarchar"
|
|
}
|
|
|
|
type SetPrimaryKeys interface {
|
|
SetPrimaryKeys(keys map[string]string)
|
|
}
|
|
|
|
func (a *MssqlAdapter) SetPrimaryKeys(keys map[string]string) {
|
|
a.keys = keys
|
|
}
|