mirror of
https://github.com/go-gitea/gitea
synced 2024-12-24 03:26:01 +01:00
bd820aa9c5
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.
But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.
The core context cache is here. It defines a new context
```go
type cacheContext struct {
ctx context.Context
data map[any]map[any]any
lock sync.RWMutex
}
var cacheContextKey = struct{}{}
func WithCacheContext(ctx context.Context) context.Context {
return context.WithValue(ctx, cacheContextKey, &cacheContext{
ctx: ctx,
data: make(map[any]map[any]any),
})
}
```
Then you can use the below 4 methods to read/write/del the data within
the same context.
```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```
Then let's take a look at how `system.GetString` implement it.
```go
func GetSetting(ctx context.Context, key string) (string, error) {
return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
return cache.GetString(genSettingCacheKey(key), func() (string, error) {
res, err := GetSettingNoCache(ctx, key)
if err != nil {
return "", err
}
return res.SettingValue, nil
})
})
}
```
First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.
An object stored in the context cache will only be destroyed after the
context disappeared.
441 lines
12 KiB
Go
441 lines
12 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"errors"
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"net/http"
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issues_model "code.gitea.io/gitea/models/issues"
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"code.gitea.io/gitea/modules/context"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/web"
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"code.gitea.io/gitea/routers/api/v1/utils"
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"code.gitea.io/gitea/services/convert"
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)
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// GetIssueCommentReactions list reactions of a comment from an issue
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func GetIssueCommentReactions(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/issues/comments/{id}/reactions issue issueGetCommentReactions
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// ---
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// summary: Get a list of reactions from a comment of an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the comment to edit
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// type: integer
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// format: int64
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/ReactionList"
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// "403":
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// "$ref": "#/responses/forbidden"
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comment, err := issues_model.GetCommentByID(ctx, ctx.ParamsInt64(":id"))
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if err != nil {
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if issues_model.IsErrCommentNotExist(err) {
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ctx.NotFound(err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetCommentByID", err)
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}
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return
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}
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if err := comment.LoadIssue(ctx); err != nil {
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ctx.Error(http.StatusInternalServerError, "comment.LoadIssue", err)
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}
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if !ctx.Repo.CanReadIssuesOrPulls(comment.Issue.IsPull) {
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ctx.Error(http.StatusForbidden, "GetIssueCommentReactions", errors.New("no permission to get reactions"))
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return
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}
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reactions, _, err := issues_model.FindCommentReactions(comment.IssueID, comment.ID)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "FindCommentReactions", err)
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return
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}
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_, err = reactions.LoadUsers(ctx, ctx.Repo.Repository)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "ReactionList.LoadUsers()", err)
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return
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}
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var result []api.Reaction
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for _, r := range reactions {
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result = append(result, api.Reaction{
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User: convert.ToUser(ctx, r.User, ctx.Doer),
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Reaction: r.Type,
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Created: r.CreatedUnix.AsTime(),
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})
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}
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ctx.JSON(http.StatusOK, result)
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}
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// PostIssueCommentReaction add a reaction to a comment of an issue
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func PostIssueCommentReaction(ctx *context.APIContext) {
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// swagger:operation POST /repos/{owner}/{repo}/issues/comments/{id}/reactions issue issuePostCommentReaction
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// ---
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// summary: Add a reaction to a comment of an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the comment to edit
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// type: integer
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// format: int64
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// required: true
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// - name: content
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// in: body
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// schema:
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// "$ref": "#/definitions/EditReactionOption"
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// responses:
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// "200":
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// "$ref": "#/responses/Reaction"
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// "201":
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// "$ref": "#/responses/Reaction"
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// "403":
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// "$ref": "#/responses/forbidden"
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form := web.GetForm(ctx).(*api.EditReactionOption)
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changeIssueCommentReaction(ctx, *form, true)
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}
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// DeleteIssueCommentReaction remove a reaction from a comment of an issue
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func DeleteIssueCommentReaction(ctx *context.APIContext) {
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// swagger:operation DELETE /repos/{owner}/{repo}/issues/comments/{id}/reactions issue issueDeleteCommentReaction
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// ---
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// summary: Remove a reaction from a comment of an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the comment to edit
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// type: integer
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// format: int64
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// required: true
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// - name: content
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// in: body
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// schema:
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// "$ref": "#/definitions/EditReactionOption"
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// responses:
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// "200":
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// "$ref": "#/responses/empty"
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// "403":
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// "$ref": "#/responses/forbidden"
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form := web.GetForm(ctx).(*api.EditReactionOption)
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changeIssueCommentReaction(ctx, *form, false)
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}
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func changeIssueCommentReaction(ctx *context.APIContext, form api.EditReactionOption, isCreateType bool) {
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comment, err := issues_model.GetCommentByID(ctx, ctx.ParamsInt64(":id"))
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if err != nil {
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if issues_model.IsErrCommentNotExist(err) {
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ctx.NotFound(err)
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} else {
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ctx.Error(http.StatusInternalServerError, "GetCommentByID", err)
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}
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return
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}
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err = comment.LoadIssue(ctx)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "comment.LoadIssue() failed", err)
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}
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if comment.Issue.IsLocked && !ctx.Repo.CanWriteIssuesOrPulls(comment.Issue.IsPull) {
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ctx.Error(http.StatusForbidden, "ChangeIssueCommentReaction", errors.New("no permission to change reaction"))
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return
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}
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if isCreateType {
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// PostIssueCommentReaction part
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reaction, err := issues_model.CreateCommentReaction(ctx.Doer.ID, comment.Issue.ID, comment.ID, form.Reaction)
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if err != nil {
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if issues_model.IsErrForbiddenIssueReaction(err) {
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ctx.Error(http.StatusForbidden, err.Error(), err)
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} else if issues_model.IsErrReactionAlreadyExist(err) {
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ctx.JSON(http.StatusOK, api.Reaction{
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User: convert.ToUser(ctx, ctx.Doer, ctx.Doer),
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Reaction: reaction.Type,
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Created: reaction.CreatedUnix.AsTime(),
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})
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} else {
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ctx.Error(http.StatusInternalServerError, "CreateCommentReaction", err)
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}
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return
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}
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ctx.JSON(http.StatusCreated, api.Reaction{
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User: convert.ToUser(ctx, ctx.Doer, ctx.Doer),
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Reaction: reaction.Type,
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Created: reaction.CreatedUnix.AsTime(),
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})
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} else {
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// DeleteIssueCommentReaction part
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err = issues_model.DeleteCommentReaction(ctx.Doer.ID, comment.Issue.ID, comment.ID, form.Reaction)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "DeleteCommentReaction", err)
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return
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}
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// ToDo respond 204
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ctx.Status(http.StatusOK)
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}
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}
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// GetIssueReactions list reactions of an issue
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func GetIssueReactions(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/issues/{index}/reactions issue issueGetIssueReactions
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// ---
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// summary: Get a list reactions of an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: index
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// in: path
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// description: index of the issue
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// type: integer
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// format: int64
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// required: true
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// - name: page
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// in: query
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// description: page number of results to return (1-based)
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// type: integer
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// - name: limit
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// in: query
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// description: page size of results
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// type: integer
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// responses:
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// "200":
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// "$ref": "#/responses/ReactionList"
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// "403":
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// "$ref": "#/responses/forbidden"
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issue, err := issues_model.GetIssueWithAttrsByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
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if err != nil {
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if issues_model.IsErrIssueNotExist(err) {
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ctx.NotFound()
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} else {
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ctx.Error(http.StatusInternalServerError, "GetIssueByIndex", err)
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}
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return
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}
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if !ctx.Repo.CanReadIssuesOrPulls(issue.IsPull) {
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ctx.Error(http.StatusForbidden, "GetIssueReactions", errors.New("no permission to get reactions"))
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return
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}
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reactions, count, err := issues_model.FindIssueReactions(issue.ID, utils.GetListOptions(ctx))
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "FindIssueReactions", err)
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return
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}
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_, err = reactions.LoadUsers(ctx, ctx.Repo.Repository)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "ReactionList.LoadUsers()", err)
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return
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}
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var result []api.Reaction
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for _, r := range reactions {
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result = append(result, api.Reaction{
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User: convert.ToUser(ctx, r.User, ctx.Doer),
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Reaction: r.Type,
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Created: r.CreatedUnix.AsTime(),
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})
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}
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ctx.SetTotalCountHeader(count)
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ctx.JSON(http.StatusOK, result)
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}
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// PostIssueReaction add a reaction to an issue
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func PostIssueReaction(ctx *context.APIContext) {
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// swagger:operation POST /repos/{owner}/{repo}/issues/{index}/reactions issue issuePostIssueReaction
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// ---
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// summary: Add a reaction to an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: index
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// in: path
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// description: index of the issue
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// type: integer
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// format: int64
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// required: true
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// - name: content
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// in: body
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// schema:
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// "$ref": "#/definitions/EditReactionOption"
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// responses:
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// "200":
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// "$ref": "#/responses/Reaction"
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// "201":
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// "$ref": "#/responses/Reaction"
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// "403":
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// "$ref": "#/responses/forbidden"
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form := web.GetForm(ctx).(*api.EditReactionOption)
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changeIssueReaction(ctx, *form, true)
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}
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// DeleteIssueReaction remove a reaction from an issue
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func DeleteIssueReaction(ctx *context.APIContext) {
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// swagger:operation DELETE /repos/{owner}/{repo}/issues/{index}/reactions issue issueDeleteIssueReaction
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// ---
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// summary: Remove a reaction from an issue
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// consumes:
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// - application/json
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: index
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// in: path
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// description: index of the issue
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// type: integer
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// format: int64
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// required: true
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// - name: content
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// in: body
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// schema:
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// "$ref": "#/definitions/EditReactionOption"
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// responses:
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// "200":
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// "$ref": "#/responses/empty"
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// "403":
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// "$ref": "#/responses/forbidden"
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form := web.GetForm(ctx).(*api.EditReactionOption)
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changeIssueReaction(ctx, *form, false)
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}
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func changeIssueReaction(ctx *context.APIContext, form api.EditReactionOption, isCreateType bool) {
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issue, err := issues_model.GetIssueWithAttrsByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
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if err != nil {
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if issues_model.IsErrIssueNotExist(err) {
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ctx.NotFound()
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} else {
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ctx.Error(http.StatusInternalServerError, "GetIssueByIndex", err)
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}
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return
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}
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if issue.IsLocked && !ctx.Repo.CanWriteIssuesOrPulls(issue.IsPull) {
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ctx.Error(http.StatusForbidden, "ChangeIssueCommentReaction", errors.New("no permission to change reaction"))
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return
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}
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if isCreateType {
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// PostIssueReaction part
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reaction, err := issues_model.CreateIssueReaction(ctx.Doer.ID, issue.ID, form.Reaction)
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if err != nil {
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if issues_model.IsErrForbiddenIssueReaction(err) {
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ctx.Error(http.StatusForbidden, err.Error(), err)
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} else if issues_model.IsErrReactionAlreadyExist(err) {
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ctx.JSON(http.StatusOK, api.Reaction{
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User: convert.ToUser(ctx, ctx.Doer, ctx.Doer),
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Reaction: reaction.Type,
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Created: reaction.CreatedUnix.AsTime(),
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})
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} else {
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ctx.Error(http.StatusInternalServerError, "CreateCommentReaction", err)
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}
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return
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}
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ctx.JSON(http.StatusCreated, api.Reaction{
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User: convert.ToUser(ctx, ctx.Doer, ctx.Doer),
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Reaction: reaction.Type,
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Created: reaction.CreatedUnix.AsTime(),
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})
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} else {
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// DeleteIssueReaction part
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err = issues_model.DeleteIssueReaction(ctx.Doer.ID, issue.ID, form.Reaction)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "DeleteIssueReaction", err)
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return
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}
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// ToDo respond 204
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ctx.Status(http.StatusOK)
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}
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}
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