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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Copyright 2020-2024 Luke Whritenour | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package database | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
| "net/url" | ||
| "strings" | ||
| "time" | ||
|
|
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| _ "github.com/go-sql-driver/mysql" | ||
| ) | ||
|
|
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| type MySQL struct { | ||
| *sql.DB | ||
| } | ||
|
|
||
| func NewMySQL(uri *url.URL) (Database, error) { | ||
| _, uriTrimmed, _ := strings.Cut(uri.String(), uri.Scheme+"://") | ||
| db, err := sql.Open("mysql", uriTrimmed) | ||
|
|
||
| db.SetConnMaxLifetime(time.Minute * 3) | ||
| db.SetMaxOpenConns(10) | ||
| db.SetMaxIdleConns(10) | ||
|
|
||
| return &MySQL{db}, err | ||
| } | ||
|
|
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| func (m *MySQL) Migrate(ctx context.Context) error { | ||
| _, err := m.Exec(` | ||
| CREATE TABLE IF NOT EXISTS documents ( | ||
| id VARCHAR(255) PRIMARY KEY, | ||
| content TEXT NOT NULL, | ||
| created_at DATETIME DEFAULT CURRENT_TIMESTAMP, | ||
| updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP | ||
| )`) | ||
|
|
||
| return err | ||
| } | ||
|
|
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| func (m *MySQL) GetDocument(ctx context.Context, id string) (Document, error) { | ||
| doc := new(Document) | ||
| row := m.QueryRow("SELECT * FROM documents WHERE id=?", id) | ||
| err := row.Scan(&doc.ID, &doc.Content, &doc.CreatedAt, &doc.UpdatedAt) | ||
|
|
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| return *doc, err | ||
| } | ||
|
|
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| func (m *MySQL) CreateDocument(ctx context.Context, id, content string) error { | ||
| tx, err := m.Begin() | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| _, err = tx.Exec("INSERT INTO documents (id, content) VALUES (?, ?)", | ||
| id, content) // created_at and updated_at are auto-generated | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return tx.Commit() | ||
| } |
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