Make all text fit sql slides

lectures/07-sql/conf/stats.go

@@ -1,17 +1,17 @@
 package conf
 
 type DBStats struct {
-    MaxOpenConnections int // Maximum number of open connections to the database; added in Go 1.11
+	MaxOpenConnections int // Maximum number of open connections to the database; added in Go 1.11
 
-    // Pool Status
-    OpenConnections int // The number of established connections both in use and idle.
-    InUse           int // The number of connections currently in use; added in Go 1.11
-    Idle            int // The number of idle connections; added in Go 1.11
+	// Pool Status
+	OpenConnections int // The number of established connections both in use and idle.
+	InUse           int // The number of connections currently in use; added in Go 1.11
+	Idle            int // The number of idle connections; added in Go 1.11
 
-    // Counters
-    WaitCount         int64         // The total number of connections waited for; added in Go 1.11
-    WaitDuration      time.Duration // The total time blocked waiting for a new connection; added in Go 1.11
-    MaxIdleClosed     int64         // The total number of connections closed due to SetMaxIdleConns; added in Go 1.11
-    MaxIdleTimeClosed int64         // The total number of connections closed due to SetConnMaxIdleTime; added in Go 1.15
-    MaxLifetimeClosed int64         // The total number of connections closed due to SetConnMaxLifetime; added in Go 1.11
+	// Counters
+	WaitCount         int64         // The total number of connections waited for; added in Go 1.11
+	WaitDuration      time.Duration // The total time blocked waiting for a new connection; added in Go 1.11
+	MaxIdleClosed     int64         // The total number of connections closed due to SetMaxIdleConns; added in Go 1.11
+	MaxIdleTimeClosed int64         // The total number of connections closed due to SetConnMaxIdleTime; added in Go 1.15
+	MaxLifetimeClosed int64         // The total number of connections closed due to SetConnMaxLifetime; added in Go 1.11
 }

lectures/07-sql/exec/exec.go

@@ -7,7 +7,11 @@ import (
 )
 
 func Exec(ctx context.Context, db *sql.DB) {
-	res, err := db.ExecContext(ctx, "UPDATE users SET name = $1 WHERE id = $2", "William Mandella", 1)
+	res, err := db.ExecContext(
+		ctx,
+		"UPDATE users SET name = $1 WHERE id = $2",
+		"William Mandella", 1,
+	)
 	if err != nil {
 		log.Fatal(err)
 	}

lectures/07-sql/hasql/open.go

@@ -12,7 +12,7 @@ func Open() {
 	dbFoo, _ := sql.Open("pgx", "host=foo")
 	dbBar, _ := sql.Open("pgx", "host=bar")
 	cluster, err := hasql.NewCluster(
-		[]hasql.Node{hasql.NewNode("foo", dbFoo), hasql.NewNode("bar", dbBar) },
+		[]hasql.Node{hasql.NewNode("foo", dbFoo), hasql.NewNode("bar", dbBar)},
 		checkers.PostgreSQL,
 	)
 	if err != nil {

lectures/07-sql/resources/tx.go

@@ -13,7 +13,8 @@ func TxExhaust(ctx context.Context, db *sql.DB) {
 		return
 	}
 
-	if _, err = tx.ExecContext(ctx, `UPDATE users SET name = "Surl/Tesh-echer" WHERE id = 1`); err != nil {
+	_, err = tx.ExecContext(ctx, `UPDATE users SET name = "Surl/Tesh-echer" WHERE id = 1`)
+	if err != nil {
 		log.Println(err)
 		return
 	}

lectures/07-sql/sql.slide

@@ -100,16 +100,14 @@ database/sql
 
 .code prepare/prepare.go /^func Prepare/,/^}/
 
-* *sql.DB - это пул коннектов
-
-* Настройка DB
+* Настройка *sql.DB
 
 - func (db *DB) SetConnMaxIdleTime(d time.Duration)
 - func (db *DB) SetConnMaxLifetime(d time.Duration)
 - func (db *DB) SetMaxIdleConns(n int)
 - func (db *DB) SetMaxOpenConns(n int)
 
-* Статистика DB
+* Статистика *sql.DB
 
 - func (db *DB) Stats() DBStats
 

lectures/07-sql/sqlx/ext.go

@@ -1,23 +1,23 @@
 package sqlx
 
 import (
-    "context"
-    "database/sql"
+	"context"
+	"database/sql"
 
-    "github.com/jmoiron/sqlx"
+	"github.com/jmoiron/sqlx"
 )
 
 type QueryerContext interface {
-    QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
-    QueryxContext(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error)
-    QueryRowxContext(ctx context.Context, query string, args ...interface{}) *sqlx.Row
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+	QueryxContext(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error)
+	QueryRowxContext(ctx context.Context, query string, args ...interface{}) *sqlx.Row
 }
 
 type ExecerContext interface {
-    ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
+	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
 }
 
 type ExtContext interface {
-    QueryerContext
-    ExecerContext
+	QueryerContext
+	ExecerContext
 }

lectures/07-sql/tx/tx.go

@@ -13,7 +13,8 @@ func Begin(ctx context.Context, db *sql.DB) {
 	}
 	defer tx.Rollback()
 
-	if _, err = tx.ExecContext(ctx, `UPDATE users SET name = "Tyador Borlú" WHERE id = 1`); err != nil {
+	_, err = tx.ExecContext(ctx, `UPDATE users SET name = "Tyador Borlú" WHERE id = 1`)
+	if err != nil {
 		log.Fatal(err)
 	}