Make deleting an issue not fail

app/build.gradle

@@ -98,12 +98,12 @@ android {
 }
 ext {
-    supportLibVersion = '26.0.0'
+    supportLibVersion = '26.0.1'
     retrofitVersion = '2.3.0'
     okHttpVersion = '3.8.1'
     butterknifeVersion = '8.7.0'
     parcelerVersion = '1.1.9'
-    reptarVersion = '2.5.0'
+    reptarVersion = '2.5.1'
     adapterLayout = '1.1.1'
     materialDialogsVersion = '0.9.4.5'
     leakCanaryVersion = '1.5'
@@ -151,7 +151,7 @@ dependencies {
     implementation 'org.greenrobot:eventbus:3.0.0'
-    implementation 'io.reactivex.rxjava2:rxjava:2.1.2'
+    implementation 'io.reactivex.rxjava2:rxjava:2.1.3'
     implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
     implementation 'com.trello.rxlifecycle2:rxlifecycle-components:2.1.0'

app/src/main/java/com/commit451/gitlab/activity/IssueActivity.kt

@@ -32,6 +32,7 @@ import com.commit451.gitlab.model.api.Issue
 import com.commit451.gitlab.model.api.Note
 import com.commit451.gitlab.model.api.Project
 import com.commit451.gitlab.navigation.Navigator
+import com.commit451.gitlab.rx.CustomCompleteObserver
 import com.commit451.gitlab.rx.CustomResponseSingleObserver
 import com.commit451.gitlab.rx.CustomSingleObserver
 import com.commit451.gitlab.util.IntentUtil
@@ -122,7 +123,7 @@ class IssueActivity : BaseActivity() {
             R.id.action_delete -> {
                 App.get().gitLab.deleteIssue(project!!.id, issue!!.iid)
                         .setup(bindToLifecycle())
-                        .subscribe(object : CustomSingleObserver<String>() {
+                        .subscribe(object : CustomCompleteObserver() {
                             override fun error(t: Throwable) {
                                 Timber.e(t)
@@ -130,7 +131,7 @@ class IssueActivity : BaseActivity() {
                                         .show()
                             }
-                            override fun success(s: String) {
+                            override fun complete() {
                                 App.bus().post(IssueReloadEvent())
                                 Toast.makeText(this@IssueActivity, R.string.issue_deleted, Toast.LENGTH_SHORT)
                                         .show()
@@ -144,7 +145,7 @@ class IssueActivity : BaseActivity() {
     }
     @OnClick(R.id.fab_edit_issue)
-    fun onEditIssueClick(fab: View) {
+    fun onEditIssueClick() {
         val project = project
         val issue = issue
         if (project != null && issue != null) {

app/src/main/java/com/commit451/gitlab/api/GitLabService.kt

@@ -3,6 +3,7 @@ package com.commit451.gitlab.api
 import com.commit451.gitlab.api.request.SessionRequest
 import com.commit451.gitlab.api.response.FileUploadResponse
 import com.commit451.gitlab.model.api.*
+import io.reactivex.Completable
 import io.reactivex.Single
 import okhttp3.MultipartBody
 import retrofit2.Response
@@ -280,7 +281,7 @@ interface GitLabService {
     @DELETE(API_VERSION + "/projects/{id}/issues/{issue_iid}")
     fun deleteIssue(@Path("id") projectId: Long,
-                    @Path("issue_iid") issueIid: Long): Single<String>
+                    @Path("issue_iid") issueIid: Long): Completable
     /* --- REPOSITORY --- */

app/src/main/java/com/commit451/gitlab/extension/Completable.kt

+package com.commit451.gitlab.extension
+
+import com.commit451.reptar.kotlin.fromIoToMainThread
+import com.trello.rxlifecycle2.LifecycleTransformer
+import io.reactivex.Completable
+
+fun Completable.setup(transformer: LifecycleTransformer<Any>): Completable {
+    return this.compose(transformer).fromIoToMainThread()
+}

app/src/main/java/com/commit451/gitlab/rx/CustomCompleteObserver.kt

+package com.commit451.gitlab.rx
+
+import com.commit451.reptar.ComposableCompletableObserver
+
+abstract class CustomCompleteObserver: ComposableCompletableObserver()
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