gosora/query_gen/lib/mysql.go
Azareal 14a14b7e80 More work on Cosora, we have a screenshot of it up now, although it's super experimental at the moment.
This commit might be a little broken, another is coming to fix things up!

The topics list is now paginated.
Refactored the error handling system.
Added the Trumboyg WYSIWYG editor for Cosora.
Moved Delete() out of the TopicStore and into *Topic
You can now bulk delete and bulk lock topics on Cosora.
h1s are now formatted properly on Firefox.
Added more ARIA Labels.
SuperModOnly is now a piece of middleware for the Control Panel routes.
Refactored and extended the router generator.
Improved the SEO for the paginators.
Added bits of Microdata to improve SEO further.
Wrote benchmarks for users.Get() and users.BypassGet()
More errors are caught now.
You can now attach pcss files to posts.
Improved the error logging for JavaScript.
Topic list avatars now link to the associated profiles.
Added last poster avatars to the forum list.
2017-10-30 09:57:08 +00:00

932 lines
26 KiB
Go

/* WIP Under Construction */
package qgen
//import "fmt"
import "strings"
import "strconv"
import "errors"
func init() {
DB_Registry = append(DB_Registry,
&MysqlAdapter{Name: "mysql", Buffer: make(map[string]DB_Stmt)},
)
}
type MysqlAdapter struct {
Name string // ? - Do we really need this? Can't we hard-code this?
Buffer map[string]DB_Stmt
BufferOrder []string // Map iteration order is random, so we need this to track the order, so we don't get huge diffs every commit
}
// GetName gives you the name of the database adapter. In this case, it's mysql
func (adapter *MysqlAdapter) GetName() string {
return adapter.Name
}
func (adapter *MysqlAdapter) GetStmt(name string) DB_Stmt {
return adapter.Buffer[name]
}
func (adapter *MysqlAdapter) GetStmts() map[string]DB_Stmt {
return adapter.Buffer
}
func (adapter *MysqlAdapter) CreateTable(name string, table string, charset string, collation string, columns []DB_Table_Column, keys []DB_Table_Key) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if len(columns) == 0 {
return "", errors.New("You can't have a table with no columns")
}
var querystr = "CREATE TABLE `" + table + "` ("
for _, column := range columns {
// Make it easier to support Cassandra in the future
if column.Type == "createdAt" {
column.Type = "datetime"
}
var size string
if column.Size > 0 {
size = "(" + strconv.Itoa(column.Size) + ")"
}
var end string
// TODO: Exclude the other variants of text like mediumtext and longtext too
if column.Default != "" && column.Type != "text" {
end = " DEFAULT "
if adapter.stringyType(column.Type) && column.Default != "''" {
end += "'" + column.Default + "'"
} else {
end += column.Default
}
}
if column.Null {
end += " null"
} else {
end += " not null"
}
if column.Auto_Increment {
end += " AUTO_INCREMENT"
}
querystr += "\n\t`" + column.Name + "` " + column.Type + size + end + ","
}
if len(keys) > 0 {
for _, key := range keys {
querystr += "\n\t" + key.Type
if key.Type != "unique" {
querystr += " key"
}
querystr += "("
for _, column := range strings.Split(key.Columns, ",") {
querystr += "`" + column + "`,"
}
querystr = querystr[0:len(querystr)-1] + "),"
}
}
querystr = querystr[0:len(querystr)-1] + "\n)"
if charset != "" {
querystr += " CHARSET=" + charset
}
if collation != "" {
querystr += " COLLATE " + collation
}
adapter.pushStatement(name, "create-table", querystr+";")
return querystr + ";", nil
}
func (adapter *MysqlAdapter) SimpleInsert(name string, table string, columns string, fields string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if len(columns) == 0 {
return "", errors.New("No columns found for SimpleInsert")
}
if len(fields) == 0 {
return "", errors.New("No input data found for SimpleInsert")
}
var querystr = "INSERT INTO `" + table + "`("
// Escape the column names, just in case we've used a reserved keyword
for _, column := range processColumns(columns) {
if column.Type == "function" {
querystr += column.Left + ","
} else {
querystr += "`" + column.Left + "`,"
}
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
querystr += ") VALUES ("
for _, field := range processFields(fields) {
nameLen := len(field.Name)
if field.Name[0] == '"' && field.Name[nameLen-1] == '"' && nameLen >= 3 {
field.Name = "'" + field.Name[1:nameLen-1] + "'"
}
if field.Name[0] == '\'' && field.Name[nameLen-1] == '\'' && nameLen >= 3 {
field.Name = "'" + strings.Replace(field.Name[1:nameLen-1], "'", "''", -1) + "'"
}
querystr += field.Name + ","
}
querystr = querystr[0 : len(querystr)-1]
adapter.pushStatement(name, "insert", querystr+")")
return querystr + ")", nil
}
// ! DEPRECATED
func (adapter *MysqlAdapter) SimpleReplace(name string, table string, columns string, fields string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if len(columns) == 0 {
return "", errors.New("No columns found for SimpleInsert")
}
if len(fields) == 0 {
return "", errors.New("No input data found for SimpleInsert")
}
var querystr = "REPLACE INTO `" + table + "`("
// Escape the column names, just in case we've used a reserved keyword
for _, column := range processColumns(columns) {
if column.Type == "function" {
querystr += column.Left + ","
} else {
querystr += "`" + column.Left + "`,"
}
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
querystr += ") VALUES ("
for _, field := range processFields(fields) {
querystr += field.Name + ","
}
querystr = querystr[0 : len(querystr)-1]
adapter.pushStatement(name, "replace", querystr+")")
return querystr + ")", nil
}
func (adapter *MysqlAdapter) SimpleUpsert(name string, table string, columns string, fields string, where string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if len(columns) == 0 {
return "", errors.New("No columns found for SimpleInsert")
}
if len(fields) == 0 {
return "", errors.New("No input data found for SimpleInsert")
}
if where == "" {
return "", errors.New("You need a where for this upsert")
}
var querystr = "INSERT INTO `" + table + "`("
var parsedFields = processFields(fields)
var insertColumns string
var insertValues string
var setBit = ") ON DUPLICATE KEY UPDATE "
for columnID, column := range processColumns(columns) {
field := parsedFields[columnID]
if column.Type == "function" {
insertColumns += column.Left + ","
insertValues += field.Name + ","
setBit += column.Left + " = " + field.Name + " AND "
} else {
insertColumns += "`" + column.Left + "`,"
insertValues += field.Name + ","
setBit += "`" + column.Left + "` = " + field.Name + " AND "
}
}
insertColumns = insertColumns[0 : len(insertColumns)-1]
insertValues = insertValues[0 : len(insertValues)-1]
insertColumns += ") VALUES (" + insertValues
setBit = setBit[0 : len(setBit)-5]
querystr += insertColumns + setBit
adapter.pushStatement(name, "upsert", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleUpdate(name string, table string, set string, where string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if set == "" {
return "", errors.New("You need to set data in this update statement")
}
var querystr = "UPDATE `" + table + "` SET "
for _, item := range processSet(set) {
querystr += "`" + item.Column + "` ="
for _, token := range item.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
}
}
querystr += ","
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
// Add support for BETWEEN x.x
if len(where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
adapter.pushStatement(name, "update", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleDelete(name string, table string, where string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
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")
}
var querystr = "DELETE FROM `" + table + "` WHERE"
// Add support for BETWEEN x.x
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = strings.TrimSpace(querystr[0 : len(querystr)-4])
adapter.pushStatement(name, "delete", querystr)
return querystr, nil
}
// We don't want to accidentally wipe tables, so we'll have a separate method for purging tables instead
func (adapter *MysqlAdapter) Purge(name string, table string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
adapter.pushStatement(name, "purge", "DELETE FROM `"+table+"`")
return "DELETE FROM `" + table + "`", nil
}
func (adapter *MysqlAdapter) SimpleSelect(name string, table string, columns string, where string, orderby string, limit string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
if len(columns) == 0 {
return "", errors.New("No columns found for SimpleSelect")
}
// Slice up the user friendly strings into something easier to process
var colslice = strings.Split(strings.TrimSpace(columns), ",")
var querystr = "SELECT "
// Escape the column names, just in case we've used a reserved keyword
for _, column := range colslice {
querystr += "`" + strings.TrimSpace(column) + "`,"
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + table + "`"
// Add support for BETWEEN x.x
if len(where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(orderby) {
// TODO: We might want to escape this column
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if limit != "" {
querystr += " LIMIT " + limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "select", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleLeftJoin(name string, table1 string, table2 string, columns string, joiners string, where string, orderby string, limit string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
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")
}
var querystr = "SELECT "
for _, column := range processColumns(columns) {
var source, alias string
// Escape the column names, just in case we've used a reserved keyword
if column.Table != "" {
source = "`" + column.Table + "`.`" + column.Left + "`"
} else if column.Type == "function" {
source = column.Left
} else {
source = "`" + column.Left + "`"
}
if column.Alias != "" {
alias = " AS `" + column.Alias + "`"
}
querystr += source + alias + ","
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + table1 + "` LEFT JOIN `" + table2 + "` ON "
for _, joiner := range processJoiner(joiners) {
querystr += "`" + joiner.LeftTable + "`.`" + joiner.LeftColumn + "` " + joiner.Operator + " `" + joiner.RightTable + "`.`" + joiner.RightColumn + "` AND "
}
// Remove the trailing AND
querystr = querystr[0 : len(querystr)-4]
// Add support for BETWEEN x.x
if len(where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
halves := strings.Split(token.Contents, ".")
if len(halves) == 2 {
querystr += " `" + halves[0] + "`.`" + halves[1] + "`"
} else {
querystr += " `" + token.Contents + "`"
}
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(orderby) {
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if limit != "" {
querystr += " LIMIT " + limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "select", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleInnerJoin(name string, table1 string, table2 string, columns string, joiners string, where string, orderby string, limit string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
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")
}
var querystr = "SELECT "
for _, column := range processColumns(columns) {
var source, alias string
// Escape the column names, just in case we've used a reserved keyword
if column.Table != "" {
source = "`" + column.Table + "`.`" + column.Left + "`"
} else if column.Type == "function" {
source = column.Left
} else {
source = "`" + column.Left + "`"
}
if column.Alias != "" {
alias = " AS `" + column.Alias + "`"
}
querystr += source + alias + ","
}
// Remove the trailing comma
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + table1 + "` INNER JOIN `" + table2 + "` ON "
for _, joiner := range processJoiner(joiners) {
querystr += "`" + joiner.LeftTable + "`.`" + joiner.LeftColumn + "` " + joiner.Operator + " `" + joiner.RightTable + "`.`" + joiner.RightColumn + "` AND "
}
// Remove the trailing AND
querystr = querystr[0 : len(querystr)-4]
// Add support for BETWEEN x.x
if len(where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
halves := strings.Split(token.Contents, ".")
if len(halves) == 2 {
querystr += " `" + halves[0] + "`.`" + halves[1] + "`"
} else {
querystr += " `" + token.Contents + "`"
}
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(orderby) {
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if limit != "" {
querystr += " LIMIT " + limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "select", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleInsertSelect(name string, ins DB_Insert, sel DB_Select) (string, error) {
/* Insert Portion */
var querystr = "INSERT INTO `" + ins.Table + "`("
// Escape the column names, just in case we've used a reserved keyword
for _, column := range processColumns(ins.Columns) {
if column.Type == "function" {
querystr += column.Left + ","
} else {
querystr += "`" + column.Left + "`,"
}
}
querystr = querystr[0:len(querystr)-1] + ") SELECT"
/* Select Portion */
for _, column := range processColumns(sel.Columns) {
var source, alias string
// Escape the column names, just in case we've used a reserved keyword
if column.Type == "function" || column.Type == "substitute" {
source = column.Left
} else {
source = "`" + column.Left + "`"
}
if column.Alias != "" {
alias = " AS `" + column.Alias + "`"
}
querystr += " " + source + alias + ","
}
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + sel.Table + "`"
// Add support for BETWEEN x.x
if len(sel.Where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(sel.Where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(sel.Orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(sel.Orderby) {
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if sel.Limit != "" {
querystr += " LIMIT " + sel.Limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "insert", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleInsertLeftJoin(name string, ins DB_Insert, sel DB_Join) (string, error) {
/* Insert Portion */
var querystr = "INSERT INTO `" + ins.Table + "`("
// Escape the column names, just in case we've used a reserved keyword
for _, column := range processColumns(ins.Columns) {
if column.Type == "function" {
querystr += column.Left + ","
} else {
querystr += "`" + column.Left + "`,"
}
}
querystr = querystr[0:len(querystr)-1] + ") SELECT"
/* Select Portion */
for _, column := range processColumns(sel.Columns) {
var source, alias string
// Escape the column names, just in case we've used a reserved keyword
if column.Table != "" {
source = "`" + column.Table + "`.`" + column.Left + "`"
} else if column.Type == "function" {
source = column.Left
} else {
source = "`" + column.Left + "`"
}
if column.Alias != "" {
alias = " AS `" + column.Alias + "`"
}
querystr += " " + source + alias + ","
}
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + sel.Table1 + "` LEFT JOIN `" + sel.Table2 + "` ON "
for _, joiner := range processJoiner(sel.Joiners) {
querystr += "`" + joiner.LeftTable + "`.`" + joiner.LeftColumn + "` " + joiner.Operator + " `" + joiner.RightTable + "`.`" + joiner.RightColumn + "` AND "
}
querystr = querystr[0 : len(querystr)-4]
// Add support for BETWEEN x.x
if len(sel.Where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(sel.Where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
halves := strings.Split(token.Contents, ".")
if len(halves) == 2 {
querystr += " `" + halves[0] + "`.`" + halves[1] + "`"
} else {
querystr += " `" + token.Contents + "`"
}
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(sel.Orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(sel.Orderby) {
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if sel.Limit != "" {
querystr += " LIMIT " + sel.Limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "insert", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleInsertInnerJoin(name string, ins DB_Insert, sel DB_Join) (string, error) {
/* Insert Portion */
var querystr = "INSERT INTO `" + ins.Table + "`("
// Escape the column names, just in case we've used a reserved keyword
for _, column := range processColumns(ins.Columns) {
if column.Type == "function" {
querystr += column.Left + ","
} else {
querystr += "`" + column.Left + "`,"
}
}
querystr = querystr[0:len(querystr)-1] + ") SELECT"
/* Select Portion */
for _, column := range processColumns(sel.Columns) {
var source, alias string
// Escape the column names, just in case we've used a reserved keyword
if column.Table != "" {
source = "`" + column.Table + "`.`" + column.Left + "`"
} else if column.Type == "function" {
source = column.Left
} else {
source = "`" + column.Left + "`"
}
if column.Alias != "" {
alias = " AS `" + column.Alias + "`"
}
querystr += " " + source + alias + ","
}
querystr = querystr[0 : len(querystr)-1]
querystr += " FROM `" + sel.Table1 + "` INNER JOIN `" + sel.Table2 + "` ON "
for _, joiner := range processJoiner(sel.Joiners) {
querystr += "`" + joiner.LeftTable + "`.`" + joiner.LeftColumn + "` " + joiner.Operator + " `" + joiner.RightTable + "`.`" + joiner.RightColumn + "` AND "
}
querystr = querystr[0 : len(querystr)-4]
// Add support for BETWEEN x.x
if len(sel.Where) != 0 {
querystr += " WHERE"
for _, loc := range processWhere(sel.Where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
halves := strings.Split(token.Contents, ".")
if len(halves) == 2 {
querystr += " `" + halves[0] + "`.`" + halves[1] + "`"
} else {
querystr += " `" + token.Contents + "`"
}
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if len(sel.Orderby) != 0 {
querystr += " ORDER BY "
for _, column := range processOrderby(sel.Orderby) {
querystr += column.Column + " " + strings.ToUpper(column.Order) + ","
}
querystr = querystr[0 : len(querystr)-1]
}
if sel.Limit != "" {
querystr += " LIMIT " + sel.Limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "insert", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) SimpleCount(name string, table string, where string, limit string) (string, error) {
if name == "" {
return "", errors.New("You need a name for this statement")
}
if table == "" {
return "", errors.New("You need a name for this table")
}
var querystr = "SELECT COUNT(*) AS `count` FROM `" + table + "`"
// TODO: Add support for BETWEEN x.x
if len(where) != 0 {
querystr += " WHERE"
//log.Print("SimpleCount: ", name)
//log.Print("where: ", where)
//log.Print("processWhere: ", processWhere(where))
for _, loc := range processWhere(where) {
for _, token := range loc.Expr {
switch token.Type {
case "function", "operator", "number", "substitute":
querystr += " " + token.Contents
case "column":
querystr += " `" + token.Contents + "`"
case "string":
querystr += " '" + token.Contents + "'"
default:
panic("This token doesn't exist o_o")
}
}
querystr += " AND"
}
querystr = querystr[0 : len(querystr)-4]
}
if limit != "" {
querystr += " LIMIT " + limit
}
querystr = strings.TrimSpace(querystr)
adapter.pushStatement(name, "select", querystr)
return querystr, nil
}
func (adapter *MysqlAdapter) Write() error {
var stmts, body string
for _, name := range adapter.BufferOrder {
if name[0] == '_' {
continue
}
stmt := adapter.Buffer[name]
// ? - Table creation might be a little complex for Go to do outside a SQL file :(
if stmt.Type == "upsert" {
stmts += "var " + name + "Stmt *qgen.MySQLUpsertCallback\n"
body += `
log.Print("Preparing ` + name + ` statement.")
` + name + `Stmt, err = qgen.PrepareMySQLUpsertCallback(db, "` + stmt.Contents + `")
if err != nil {
return err
}
`
} else if stmt.Type != "create-table" {
stmts += "var " + name + "Stmt *sql.Stmt\n"
body += `
log.Print("Preparing ` + name + ` statement.")
` + name + `Stmt, err = db.Prepare("` + stmt.Contents + `")
if err != nil {
return err
}
`
}
}
out := `// +build !pgsql, !sqlite, !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 "./query_gen/lib"
// nolint
` + stmts + `
// nolint
func _gen_mysql() (err error) {
if dev.DebugMode {
log.Print("Building the generated statements")
}
` + body + `
return nil
}
`
return writeFile("./gen_mysql.go", out)
}
// Internal methods, not exposed in the interface
func (adapter *MysqlAdapter) pushStatement(name string, stype string, querystr string) {
adapter.Buffer[name] = DB_Stmt{querystr, stype}
adapter.BufferOrder = append(adapter.BufferOrder, name)
}
func (adapter *MysqlAdapter) stringyType(ctype string) bool {
ctype = strings.ToLower(ctype)
return ctype == "varchar" || ctype == "tinytext" || ctype == "text" || ctype == "mediumtext" || ctype == "longtext" || ctype == "char" || ctype == "datetime" || ctype == "timestamp" || ctype == "time" || ctype == "date"
}