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binding: add support of multipart multi files (#1878) #1949

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merged 2 commits into from Jun 18, 2019

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vkd
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@vkd vkd commented Jun 12, 2019

Fix #1878
Add support multi files on bind multipart requests.

Example:

type s struct {
	Files []*multipart.FileHeader `form:"files"`
}

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codecov bot commented Jun 12, 2019

Codecov Report

Merging #1949 into master will increase coverage by 0.01%.
The diff coverage is 100%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #1949      +/-   ##
==========================================
+ Coverage   98.75%   98.77%   +0.01%     
==========================================
  Files          38       39       +1     
  Lines        2173     2198      +25     
==========================================
+ Hits         2146     2171      +25     
  Misses         15       15              
  Partials       12       12
Impacted Files Coverage Δ
binding/form.go 100% <ø> (ø) ⬆️
binding/multipart_form_mapping.go 100% <100%> (ø)

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"github.com/stretchr/testify/assert"
)

func Test_formMultipartBinding_Bind_OneFile(t *testing.T) {
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please use TestFormMul... style.

assertMultipartFileHeader(t, s.ArrayPtrs[0], file)
}

func Test_formMultipartBinding_Bind_TwoFiles(t *testing.T) {
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please use TestFormMultipart... style.

binding/form.go Outdated
return setByForm(value, field, r.MultipartForm.Value, key, opt)
}

var errMultipartUnsupportedFieldType = errors.New("unsupported field type for multipart.FileHeader")
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maybe we should not use global var, do you think?

binding/form.go Outdated
@@ -68,22 +69,54 @@ type multipartRequest http.Request

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@thinkerou thinkerou Jun 13, 2019

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@vkd can move all multipartRequest codes to form_mapping.go? thanks!

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I agree with you about moving this code from form.go file, but I think form_mapping.go is not good place for that.
I prefer to move this code to new file like multipart_form_mapping.go. What do you think?

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@vkd OK

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vkd commented Jun 13, 2019

Fixed

@@ -39,7 +39,7 @@ func Test_formMultipartBinding_Bind_OneFile(t *testing.T) {
assertMultipartFileHeader(t, s.ArrayPtrs[0], file)
}

func Test_formMultipartBinding_Bind_TwoFiles(t *testing.T) {
func TestFormMultipartBinding_Bind_TwoFiles(t *testing.T) {
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please use TestFormMultipartBindingBindTwoFiles.

@@ -68,7 +68,7 @@ func Test_formMultipartBinding_Bind_TwoFiles(t *testing.T) {
}
}

func Test_formMultipartBinding_Bind_Error(t *testing.T) {
func TestFormMultipartBinding_Bind_Error(t *testing.T) {
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please use TestFormMultipartBindingBindError

"reflect"
)

type multipartRequestSetter http.Request
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usually, ...er or ...or is interface.

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You are right! Usually..., but not always, example: nopCloser

In my case multipartRequestSetter is a wrapper for the http.Request over the setter interface, and previous name (multipartRequest) said nothing about why it wrapped.

I know about a naming of interfaces, but in this case I don't know a better name. Maybe you can suggest something for that struct?

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thanks, but I think multipartRequest is better. and waiting @appleboy review the pull request.

@vkd vkd force-pushed the add_support_multipart_file_array branch from 6746d26 to e8a1e2f Compare June 14, 2019 05:23
thinkerou
thinkerou previously approved these changes Jun 14, 2019
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LGTM, thanks!

appleboy
appleboy previously approved these changes Jun 18, 2019
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@vkd Can you also add an example in README.md?

@vkd vkd dismissed stale reviews from appleboy and thinkerou via 1463acc June 18, 2019 10:42
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vkd commented Jun 18, 2019

I've updated the README.md the Multipart/Urlencoded binding part.

@thinkerou thinkerou merged commit 09a3650 into gin-gonic:master Jun 18, 2019
@vkd vkd deleted the add_support_multipart_file_array branch June 18, 2019 12:54
ThomasObenaus pushed a commit to ThomasObenaus/gin that referenced this pull request Feb 19, 2020
…onic#1949)

* binding: add support of multipart multi files (gin-gonic#1878)

* update readme: add multipart file binding
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how to binding for multi files upload
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