feat:goctl model mongo add easy flag for easy declare. (#2073)

* fix:typo in readme.md

* feat:`goctl model mongo ` add `easy` flag to generate code with Auto generated CollectionName for easy declare.

* fix:`goctl api doc ` when referenced api file contains no route，will generate an empty markdown file.

* code: adjust code.

Co-authored-by: 虫子樱桃 <czyt@w.cn>

tools/goctl/model/mongo/generate/generate.go

@@ -16,6 +16,7 @@ import (
 type Context struct {
 	Types  []string
 	Cache  bool
+	Easy   bool
 	Output string
 	Cfg    *config.Config
 }
@@ -82,7 +83,9 @@ func generateCustomModel(ctx *Context) error {
 		err = util.With("model").Parse(text).GoFmt(true).SaveTo(map[string]interface{}{
 			"Type":      stringx.From(t).Title(),
 			"lowerType": stringx.From(t).Untitle(),
+			"snakeType": stringx.From(t).ToSnake(),
 			"Cache":     ctx.Cache,
+			"Easy":      ctx.Easy,
 		}, output, false)
 		if err != nil {
 			return err
@@ -107,7 +110,7 @@ func generateTypes(ctx *Context) error {
 		output := filepath.Join(ctx.Output, fn+".go")
 		if err = util.With("model").Parse(text).GoFmt(true).SaveTo(map[string]interface{}{
 			"Type": stringx.From(t).Title(),
-		}, output, false);err!=nil{
+		}, output, false); err != nil {
 			return err
 		}
 	}