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diff --git a/db/create.go b/db/create.go
index 1e9e679..164eab8 100644
--- a/db/create.go
+++ b/db/create.go
@@ -1,263 +1,272 @@
/*
* Copyright © 2019-2020 Musing Studio LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package db
import (
"fmt"
"strings"
)
type ColumnType int
type OptionalInt struct {
Set bool
Value int
}
type OptionalString struct {
Set bool
Value string
}
type SQLBuilder interface {
ToSQL() (string, error)
}
type Column struct {
Dialect DialectType
Name string
Nullable bool
Default OptionalString
Type ColumnType
Size OptionalInt
PrimaryKey bool
}
type CreateTableSqlBuilder struct {
Dialect DialectType
Name string
IfNotExists bool
ColumnOrder []string
Columns map[string]*Column
Constraints []string
}
const (
ColumnTypeBool ColumnType = iota
ColumnTypeSmallInt ColumnType = iota
ColumnTypeInteger ColumnType = iota
ColumnTypeChar ColumnType = iota
ColumnTypeVarChar ColumnType = iota
ColumnTypeText ColumnType = iota
+ ColumnTypeLongText ColumnType = iota
ColumnTypeDateTime ColumnType = iota
)
var _ SQLBuilder = &CreateTableSqlBuilder{}
var UnsetSize OptionalInt = OptionalInt{Set: false, Value: 0}
var UnsetDefault OptionalString = OptionalString{Set: false, Value: ""}
func (d ColumnType) Format(dialect DialectType, size OptionalInt) (string, error) {
if dialect != DialectMySQL && dialect != DialectSQLite {
return "", fmt.Errorf("unsupported column type %d for dialect %d and size %v", d, dialect, size)
}
switch d {
case ColumnTypeSmallInt:
{
if dialect == DialectSQLite {
return "INTEGER", nil
}
mod := ""
if size.Set {
mod = fmt.Sprintf("(%d)", size.Value)
}
return "SMALLINT" + mod, nil
}
case ColumnTypeInteger:
{
if dialect == DialectSQLite {
return "INTEGER", nil
}
mod := ""
if size.Set {
mod = fmt.Sprintf("(%d)", size.Value)
}
return "INT" + mod, nil
}
case ColumnTypeChar:
{
if dialect == DialectSQLite {
return "TEXT", nil
}
mod := ""
if size.Set {
mod = fmt.Sprintf("(%d)", size.Value)
}
return "CHAR" + mod, nil
}
case ColumnTypeVarChar:
{
if dialect == DialectSQLite {
return "TEXT", nil
}
mod := ""
if size.Set {
mod = fmt.Sprintf("(%d)", size.Value)
}
return "VARCHAR" + mod, nil
}
case ColumnTypeBool:
{
if dialect == DialectSQLite {
return "INTEGER", nil
}
return "TINYINT(1)", nil
}
case ColumnTypeDateTime:
return "DATETIME", nil
case ColumnTypeText:
return "TEXT", nil
+ case ColumnTypeLongText:
+ {
+ // MySQL TEXT is limited to 64KB, so use MEDIUMTEXT for larger sizes (up to 16MB)
+ if dialect == DialectMySQL {
+ return "MEDIUMTEXT", nil
+ }
+ return "TEXT", nil
+ }
}
return "", fmt.Errorf("unsupported column type %d for dialect %d and size %v", d, dialect, size)
}
func (c *Column) SetName(name string) *Column {
c.Name = name
return c
}
func (c *Column) SetNullable(nullable bool) *Column {
c.Nullable = nullable
return c
}
func (c *Column) SetPrimaryKey(pk bool) *Column {
c.PrimaryKey = pk
return c
}
func (c *Column) SetDefault(value string) *Column {
c.Default = OptionalString{Set: true, Value: value}
return c
}
func (c *Column) SetDefaultCurrentTimestamp() *Column {
def := "NOW()"
if c.Dialect == DialectSQLite {
def = "CURRENT_TIMESTAMP"
}
c.Default = OptionalString{Set: true, Value: def}
return c
}
func (c *Column) SetType(t ColumnType) *Column {
c.Type = t
return c
}
func (c *Column) SetSize(size int) *Column {
c.Size = OptionalInt{Set: true, Value: size}
return c
}
func (c *Column) String() (string, error) {
var str strings.Builder
str.WriteString(c.Name)
str.WriteString(" ")
typeStr, err := c.Type.Format(c.Dialect, c.Size)
if err != nil {
return "", err
}
str.WriteString(typeStr)
if !c.Nullable {
str.WriteString(" NOT NULL")
}
if c.Default.Set {
str.WriteString(" DEFAULT ")
val := c.Default.Value
if val == "" {
val = "''"
}
str.WriteString(val)
}
if c.PrimaryKey {
str.WriteString(" PRIMARY KEY")
}
return str.String(), nil
}
func (b *CreateTableSqlBuilder) Column(column *Column) *CreateTableSqlBuilder {
if b.Columns == nil {
b.Columns = make(map[string]*Column)
}
b.Columns[column.Name] = column
b.ColumnOrder = append(b.ColumnOrder, column.Name)
return b
}
func (b *CreateTableSqlBuilder) UniqueConstraint(columns ...string) *CreateTableSqlBuilder {
for _, column := range columns {
if _, ok := b.Columns[column]; !ok {
// This fails silently.
return b
}
}
b.Constraints = append(b.Constraints, fmt.Sprintf("UNIQUE(%s)", strings.Join(columns, ",")))
return b
}
func (b *CreateTableSqlBuilder) SetIfNotExists(ine bool) *CreateTableSqlBuilder {
b.IfNotExists = ine
return b
}
func (b *CreateTableSqlBuilder) ToSQL() (string, error) {
var str strings.Builder
str.WriteString("CREATE TABLE ")
if b.IfNotExists {
str.WriteString("IF NOT EXISTS ")
}
str.WriteString(b.Name)
var things []string
for _, columnName := range b.ColumnOrder {
column, ok := b.Columns[columnName]
if !ok {
return "", fmt.Errorf("column not found: %s", columnName)
}
columnStr, err := column.String()
if err != nil {
return "", err
}
things = append(things, columnStr)
}
things = append(things, b.Constraints...)
if thingLen := len(things); thingLen > 0 {
str.WriteString(" ( ")
for i, thing := range things {
str.WriteString(thing)
if i < thingLen-1 {
str.WriteString(", ")
}
}
str.WriteString(" )")
}
return str.String(), nil
}
diff --git a/migrations/v16.go b/migrations/v16.go
index 03ce78a..e4f39dd 100644
--- a/migrations/v16.go
+++ b/migrations/v16.go
@@ -1,38 +1,39 @@
/*
* Copyright © 2024 Musing Studio LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package migrations
func supportRemoteLikes(db *datastore) error {
t, err := db.Begin()
if err != nil {
t.Rollback()
return err
}
_, err = t.Exec(`CREATE TABLE remote_likes (
post_id ` + db.typeChar(16) + ` NOT NULL,
remote_user_id ` + db.typeInt() + ` NOT NULL,
created ` + db.typeDateTime() + ` NOT NULL,
PRIMARY KEY (post_id,remote_user_id)
)`)
if err != nil {
t.Rollback()
return err
}
err = t.Commit()
if err != nil {
t.Rollback()
return err
}
return nil
}
+
diff --git a/migrations/v17.go b/migrations/v17.go
new file mode 100644
index 0000000..19607af
--- /dev/null
+++ b/migrations/v17.go
@@ -0,0 +1,51 @@
+/*
+ * Copyright © 2019-2024 Musing Studio LLC.
+ *
+ * This file is part of WriteFreely.
+ *
+ * WriteFreely is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, included
+ * in the LICENSE file in this source code package.
+ */
+
+package migrations
+
+import (
+ "context"
+ "database/sql"
+
+ wf_db "github.com/writefreely/writefreely/db"
+)
+
+func increasePostContentSize(db *datastore) error {
+ if db.driverName != driverMySQL {
+ // Only MySQL databases need this migration
+ return nil
+ }
+
+ dialect := wf_db.DialectMySQL
+ return wf_db.RunTransactionWithOptions(context.Background(), db.DB, &sql.TxOptions{}, func(ctx context.Context, tx *sql.Tx) error {
+ builders := []wf_db.SQLBuilder{
+ dialect.AlterTable("posts").
+ ChangeColumn("content",
+ dialect.Column(
+ "column",
+ wf_db.ColumnTypeLongText,
+ wf_db.OptionalInt{
+ Set: false,
+ Value: 0,
+ }).SetNullable(false)),
+ }
+ for _, builder := range builders {
+ query, err := builder.ToSQL()
+ if err != nil {
+ return err
+ }
+ if _, err := tx.ExecContext(ctx, query); err != nil {
+ return err
+ }
+ }
+ return nil
+ })
+}
+

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