gosora/query_gen/lib/install.go
Azareal da6ae8d7d4 Gosora now supports MSSQL (Microsoft SQL Server).
Fixed a bug with MemoryUserStore's length counter.
The upsert API is currently a confusing mess, we'll have it all fixed up soon.
Added the Delete method to the User struct.
Improved the test coverage for the user subsystem.
2017-10-16 08:32:58 +01:00

113 lines
3.0 KiB
Go

/* WIP Under Construction */
package qgen
var Install *installer
func init() {
Install = &installer{instructions: []DB_Install_Instruction{}}
}
type DB_Install_Instruction struct {
Table string
Contents string
Type string
}
// A set of wrappers around the generator methods, so we can use this in the installer
// TODO: Re-implement the query generation, query builder and installer adapters as layers on-top of a query text adapter
type installer struct {
adapter DB_Adapter
instructions []DB_Install_Instruction
plugins []QueryPlugin
}
func (install *installer) SetAdapter(name string) error {
adap, err := GetAdapter(name)
if err != nil {
return err
}
install.adapter = adap
install.instructions = []DB_Install_Instruction{}
return nil
}
func (install *installer) SetAdapterInstance(adapter DB_Adapter) {
install.adapter = adapter
install.instructions = []DB_Install_Instruction{}
}
func (install *installer) RegisterPlugin(plugin QueryPlugin) {
install.plugins = append(install.plugins, plugin)
}
func (install *installer) CreateTable(table string, charset string, collation string, columns []DB_Table_Column, keys []DB_Table_Key) error {
for _, plugin := range install.plugins {
err := plugin.Hook("CreateTableStart", table, charset, collation, columns, keys)
if err != nil {
return err
}
}
res, err := install.adapter.CreateTable("_installer", table, charset, collation, columns, keys)
if err != nil {
return err
}
for _, plugin := range install.plugins {
err := plugin.Hook("CreateTableAfter", table, charset, collation, columns, keys, res)
if err != nil {
return err
}
}
install.instructions = append(install.instructions, DB_Install_Instruction{table, res, "create-table"})
return nil
}
func (install *installer) SimpleInsert(table string, columns string, fields string) error {
for _, plugin := range install.plugins {
err := plugin.Hook("SimpleInsertStart", table, columns, fields)
if err != nil {
return err
}
}
res, err := install.adapter.SimpleInsert("_installer", table, columns, fields)
if err != nil {
return err
}
for _, plugin := range install.plugins {
err := plugin.Hook("SimpleInsertAfter", table, columns, fields, res)
if err != nil {
return err
}
}
install.instructions = append(install.instructions, DB_Install_Instruction{table, res, "insert"})
return nil
}
func (install *installer) Write() error {
var inserts string
// We can't escape backticks, so we have to dump it out a file at a time
for _, instr := range install.instructions {
if instr.Type == "create-table" {
err := writeFile("./schema/"+install.adapter.GetName()+"/query_"+instr.Table+".sql", instr.Contents)
if err != nil {
return err
}
} else {
inserts += instr.Contents + ";\n"
}
}
err := writeFile("./schema/"+install.adapter.GetName()+"/inserts.sql", inserts)
if err != nil {
return err
}
for _, plugin := range install.plugins {
err := plugin.Write()
if err != nil {
return err
}
}
return nil
}