From f92d2ee5b52c153c7118cf78c16233bf55ea9e3d Mon Sep 17 00:00:00 2001
From: ak686 <ak686@gmail.com>
Date: Sun, 8 Aug 2021 20:45:29 +0300
Subject: [PATCH] Kropotov - go2hw07

---
 codegen/go.mod                 |  5 ++++
 codegen/go.sum                 |  4 ++++
 codegen/main.go                |  6 +++++
 codegen/struct.go              | 11 +++++++++
 codegen/struct_easyjson.go     | 16 +++++++++++++
 codegen/struct_easyjson.go.tmp |  0
 go.mod                         |  3 ---
 ref/go.mod                     |  3 +++
 ref/main.go                    | 42 ++++++++++++++++++++++++++++++++++
 9 files changed, 87 insertions(+), 3 deletions(-)
 create mode 100644 codegen/go.mod
 create mode 100644 codegen/go.sum
 create mode 100644 codegen/main.go
 create mode 100644 codegen/struct.go
 create mode 100644 codegen/struct_easyjson.go
 create mode 100644 codegen/struct_easyjson.go.tmp
 delete mode 100644 go.mod
 create mode 100644 ref/go.mod
 create mode 100644 ref/main.go

diff --git a/codegen/go.mod b/codegen/go.mod
new file mode 100644
index 0000000..46c669c
--- /dev/null
+++ b/codegen/go.mod
@@ -0,0 +1,5 @@
+module hw07/codegen
+
+go 1.16
+
+require github.com/mailru/easyjson v0.7.7 // indirect
diff --git a/codegen/go.sum b/codegen/go.sum
new file mode 100644
index 0000000..7707cb6
--- /dev/null
+++ b/codegen/go.sum
@@ -0,0 +1,4 @@
+github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
+github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
+github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
+github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
diff --git a/codegen/main.go b/codegen/main.go
new file mode 100644
index 0000000..37ff221
--- /dev/null
+++ b/codegen/main.go
@@ -0,0 +1,6 @@
+package main
+
+
+func main() {
+
+}
diff --git a/codegen/struct.go b/codegen/struct.go
new file mode 100644
index 0000000..d0df7af
--- /dev/null
+++ b/codegen/struct.go
@@ -0,0 +1,11 @@
+package main
+
+//easyjson:json
+
+type Product struct {
+	Id int64
+	Name string
+	Code string
+	Price float64
+	Status   int
+}
diff --git a/codegen/struct_easyjson.go b/codegen/struct_easyjson.go
new file mode 100644
index 0000000..afc60b2
--- /dev/null
+++ b/codegen/struct_easyjson.go
@@ -0,0 +1,16 @@
+// TEMPORARY AUTOGENERATED FILE: easyjson stub code to make the package
+// compilable during generation.
+
+package  main
+
+import (
+  "github.com/mailru/easyjson/jwriter"
+  "github.com/mailru/easyjson/jlexer"
+)
+
+func ( Product ) MarshalJSON() ([]byte, error) { return nil, nil }
+func (* Product ) UnmarshalJSON([]byte) error { return nil }
+func ( Product ) MarshalEasyJSON(w *jwriter.Writer) {}
+func (* Product ) UnmarshalEasyJSON(l *jlexer.Lexer) {}
+
+type EasyJSON_exporter_Product *Product
diff --git a/codegen/struct_easyjson.go.tmp b/codegen/struct_easyjson.go.tmp
new file mode 100644
index 0000000..e69de29
diff --git a/go.mod b/go.mod
deleted file mode 100644
index 04289a3..0000000
--- a/go.mod
+++ /dev/null
@@ -1,3 +0,0 @@
-module github.com/alex-kropotov/go2
-
-go 1.16
diff --git a/ref/go.mod b/ref/go.mod
new file mode 100644
index 0000000..aeb22ba
--- /dev/null
+++ b/ref/go.mod
@@ -0,0 +1,3 @@
+module hw07/ref
+
+go 1.16
diff --git a/ref/main.go b/ref/main.go
new file mode 100644
index 0000000..7fdd99e
--- /dev/null
+++ b/ref/main.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+func sqlConvert(sqlText string, params ...interface{}) (sqlTextResult string, paramsResult []interface{}) {
+
+	paramsResult = []interface{}(nil)
+	sqlTextParts := strings.Split(sqlText, "?")
+	sqlTextResult = sqlTextParts[0]
+	for i, val := range params {
+		rv := reflect.ValueOf(val)
+		if rv.Kind() == reflect.Slice {
+			blank := ""
+			for j := 0; j < rv.Len(); j++ {
+				paramsResult = append(paramsResult, rv.Index(j).Interface())
+				if j < rv.Len() -1 {
+					blank += "?,"
+				} else {
+					blank += "?"
+				}
+			}
+			sqlTextResult = sqlTextResult + blank + sqlTextParts[i+1]
+		} else {
+			paramsResult = append(paramsResult, interface{}(val))
+			sqlTextResult = sqlTextResult + "?" + sqlTextParts[i+1]
+		}
+	}
+	return sqlTextResult, paramsResult
+}
+
+func main() {
+	a, b := sqlConvert("SELECT * FROM table WHERE deleted = ? AND id IN(?) AND count < ?",
+		false, []int{1, 6, 234}, 555 )
+	fmt.Println(a, b)
+	//
+	// SELECT * FROM table WHERE deleted = ? AND id IN(?,?,?) AND count < ? [false 1 6 234 555]
+	//
+}
\ No newline at end of file