DB: add a sqlc database example

Signed-off-by: Jeff Carr <jcarr@wit.com>

example-sqlc/authors/mysql/db_test.go

@@ -0,0 +1,47 @@
+// +build examples
+
+package authors
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"github.com/kyleconroy/sqlc/internal/sqltest"
+)
+
+func TestAuthors(t *testing.T) {
+	sdb, cleanup := sqltest.MySQL(t, []string{"schema.sql"})
+	defer cleanup()
+
+	ctx := context.Background()
+	db := New(sdb)
+
+	// list all authors
+	authors, err := db.ListAuthors(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(authors)
+
+	// create an author
+	result, err := db.CreateAuthor(ctx, CreateAuthorParams{
+		Name: "Brian Kernighan",
+		Bio:  sql.NullString{String: "Co-author of The C Programming Language and The Go Programming Language", Valid: true},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	authorID, err := result.LastInsertId()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(authorID)
+
+	// get the author we just inserted
+	fetchedAuthor, err := db.GetAuthor(ctx, authorID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(fetchedAuthor)
+}

example-sqlc/authors/mysql/query.sql

@@ -0,0 +1,18 @@
+/* name: GetAuthor :one */
+SELECT * FROM authors
+WHERE id = ? LIMIT 1;
+
+/* name: ListAuthors :many */
+SELECT * FROM authors
+ORDER BY name;
+
+/* name: CreateAuthor :execresult */
+INSERT INTO authors (
+  name, bio
+) VALUES (
+  ?, ? 
+);
+
+/* name: DeleteAuthor :exec */
+DELETE FROM authors
+WHERE id = ?;

example-sqlc/authors/mysql/schema.sql

@@ -0,0 +1,5 @@
+CREATE TABLE authors (
+          id   BIGINT PRIMARY KEY AUTO_INCREMENT,
+          name text      NOT NULL,
+          bio  text
+);

example-sqlc/authors/postgresql/db_test.go

@@ -0,0 +1,43 @@
+// +build examples
+
+package authors
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"github.com/kyleconroy/sqlc/internal/sqltest"
+)
+
+func TestAuthors(t *testing.T) {
+	sdb, cleanup := sqltest.PostgreSQL(t, []string{"schema.sql"})
+	defer cleanup()
+
+	ctx := context.Background()
+	db := New(sdb)
+
+	// list all authors
+	authors, err := db.ListAuthors(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(authors)
+
+	// create an author
+	insertedAuthor, err := db.CreateAuthor(ctx, CreateAuthorParams{
+		Name: "Brian Kernighan",
+		Bio:  sql.NullString{String: "Co-author of The C Programming Language and The Go Programming Language", Valid: true},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(insertedAuthor)
+
+	// get the author we just inserted
+	fetchedAuthor, err := db.GetAuthor(ctx, insertedAuthor.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(fetchedAuthor)
+}

example-sqlc/authors/postgresql/query.sql

@@ -0,0 +1,19 @@
+-- name: GetAuthor :one
+SELECT * FROM authors
+WHERE id = $1 LIMIT 1;
+
+-- name: ListAuthors :many
+SELECT * FROM authors
+ORDER BY name;
+
+-- name: CreateAuthor :one
+INSERT INTO authors (
+          name, bio
+) VALUES (
+  $1, $2
+)
+RETURNING *;
+
+-- name: DeleteAuthor :exec
+DELETE FROM authors
+WHERE id = $1;

example-sqlc/authors/postgresql/schema.sql

@@ -0,0 +1,5 @@
+CREATE TABLE authors (
+          id   BIGSERIAL PRIMARY KEY,
+          name text      NOT NULL,
+          bio  text
+);

example-sqlc/authors/sqlc.json

@@ -0,0 +1,27 @@
+{
+  "version": "2",
+  "sql": [
+    {
+      "schema": "postgresql/schema.sql",
+      "queries": "postgresql/query.sql",
+      "engine": "postgresql",
+      "gen": {
+        "go": {
+          "package": "authors",
+          "out": "postgresql"
+        }
+      }
+    },
+    {
+      "schema": "mysql/schema.sql",
+      "queries": "mysql/query.sql",
+      "engine": "mysql",
+      "gen": {
+        "go": {
+          "package": "authors",
+          "out": "mysql"
+        }
+      }
+    }
+  ]
+}