Add a way to Remove User from a Role (Issue OrchardCMS#14632)

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/RemoveUserRoleTask.Fields.Design.cshtml

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+@using OrchardCore.Workflows.ViewModels
+@using OrchardCore.Workflows.Helpers
+@using OrchardCore.Users.Workflows.Activities
+@using OrchardCore.Users.Workflows.ViewModels
+@model ActivityViewModel<RemoveUserRoleTask>
+<header>
+    <h4><i class="fa-solid fa-user" aria-hidden="true"></i>@Model.Activity.GetTitleOrDefault(() => T["Remove user from role"])</h4>
+</header>
+<em>@T["{0} from role {1}", Model.Activity.UserName, Model.Activity.RoleName]</em>

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/RemoveUserRoleTask.Fields.Edit.cshtml

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+@using OrchardCore.Users.Workflows.ViewModels
+@model RemoveUserRoleTaskViewModel
+
+<div class="mb-3" asp-validation-class-for="UserName">
+    <label asp-for="UserName">@T["UserName"]</label>
+    <input type="text" asp-for="UserName" class="form-control code" />
+    <span asp-validation-for="UserName"></span>
+    <span class="hint">@T["The User to update. With Liquid support."]</span>
+</div>
+
+<div class="mb-3" asp-validation-class-for="RoleName">
+    <label asp-for="RoleName">@T["RoleName"]</label>
+    <input type="text" asp-for="RoleName" class="form-control code" />
+    <span asp-validation-for="RoleName"></span>
+    <span class="hint">@T["The Role to remove. With Liquid support."]</span>
+</div>

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/RemoveUserRoleTask.Fields.Thumbnail.cshtml

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+<h4 class="card-title"><i class="fa-solid fa-user" aria-hidden="true"></i>@T["Remove user from role"]</h4>
+<p>@T["Removes a user from a role."]</p>

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/SelectUsersInRoleTask.Fields.Design.cshtml

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+@using OrchardCore.Workflows.ViewModels
+@using OrchardCore.Workflows.Helpers
+@using OrchardCore.Users.Workflows.Activities
+@using OrchardCore.Users.Workflows.ViewModels
+@model ActivityViewModel<SelectUsersInRoleTask>
+<header>
+    <h4><i class="fa-solid fa-user" aria-hidden="true"></i>@Model.Activity.GetTitleOrDefault(() => T["Select users in role"])</h4>
+</header>
+<em>@T["Store users of role {0} to {1}", Model.Activity.RoleName, Model.Activity.PropertyName]</em>

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/SelectUsersInRoleTask.Fields.Edit.cshtml

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+@using OrchardCore.Users.Workflows.ViewModels
+@model SelectUsersInRoleTaskViewModel
+
+<div class="mb-3" asp-validation-class-for="PropertyName">
+    <label asp-for="PropertyName">@T["PropertyName"]</label>
+    <input type="text" asp-for="PropertyName" class="form-control code" />
+    <span asp-validation-for="PropertyName"></span>
+    <span class="hint">@T["The PropertyName to save list. With Liquid support."]</span>
+</div>
+
+<div class="mb-3" asp-validation-class-for="RoleName">
+    <label asp-for="RoleName">@T["RoleName"]</label>
+    <input type="text" asp-for="RoleName" class="form-control code" />
+    <span asp-validation-for="RoleName"></span>
+    <span class="hint">@T["The Role to search for. With Liquid support."]</span>
+</div>

src/OrchardCore.Modules/OrchardCore.Users/Views/Items/SelectUsersInRoleTask.Fields.Thumbnail.cshtml

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+<h4 class="card-title"><i class="fa-solid fa-user" aria-hidden="true"></i>@T["Select users in role"]</h4>
+<p>@T["Select users in role."]</p>

src/OrchardCore.Modules/OrchardCore.Users/Workflows/Activities/RemoveUserRoleTask.cs

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+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Localization;
+using OrchardCore.Users.Models;
+using OrchardCore.Users.Services;
+using OrchardCore.Workflows.Abstractions.Models;
+using OrchardCore.Workflows.Activities;
+using OrchardCore.Workflows.Models;
+using OrchardCore.Workflows.Services;
+
+namespace OrchardCore.Users.Workflows.Activities
+{
+    public class RemoveUserRoleTask : TaskActivity
+    {
+        private readonly UserManager<IUser> _userManager;
+        private readonly IUserService _userService;
+        private readonly IWorkflowExpressionEvaluator _expressionEvaluator;
+        protected readonly IStringLocalizer S;
+
+        public RemoveUserRoleTask(UserManager<IUser> userManager, IUserService userService, IWorkflowExpressionEvaluator expressionvaluator, IStringLocalizer<RemoveUserRoleTask> localizer)
+        {
+            _userManager = userManager;
+            _userService = userService;
+            _expressionEvaluator = expressionvaluator;
+            S = localizer;
+        }
+
+        public override string Name => nameof(RemoveUserRoleTask);
+
+        public override LocalizedString DisplayText => S["Remove User Role Task"];
+
+        public override LocalizedString Category => S["User"];
+
+        public WorkflowExpression<string> UserName
+        {
+            get => GetProperty(() => new WorkflowExpression<string>());
+            set => SetProperty(value);
+        }
+
+        public WorkflowExpression<string> RoleName
+        {
+            get => GetProperty(() => new WorkflowExpression<string>());
+            set => SetProperty(value);
+        }
+
+        public override IEnumerable<Outcome> GetPossibleOutcomes(WorkflowExecutionContext workflowContext, ActivityContext activityContext)
+        {
+            return Outcomes(S["Done"], S["Failed"]);
+        }
+
+        public override async Task<ActivityExecutionResult> ExecuteAsync(WorkflowExecutionContext workflowContext, ActivityContext activityContext)
+        {
+            var userName = await _expressionEvaluator.EvaluateAsync(UserName, workflowContext, null);
+            var roleName = await _expressionEvaluator.EvaluateAsync(RoleName, workflowContext, null);
+
+            var user = (User)await _userService.GetUserAsync(userName);
+
+            if (user != null)
+            {
+                if (user.RoleNames.Contains(roleName))
+                {
+                    await _userManager.RemoveFromRoleAsync(user, roleName);
+                }
+
+                return Outcomes("Done");
+            }
+            else
+            {
+                return Outcomes("Failed");
+            }
+        }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Users/Workflows/Activities/SelectUsersInRoleTask.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Localization;
+using OrchardCore.Users.Models;
+using OrchardCore.Users.Services;
+using OrchardCore.Workflows.Abstractions.Models;
+using OrchardCore.Workflows.Activities;
+using OrchardCore.Workflows.Models;
+using OrchardCore.Workflows.Services;
+
+namespace OrchardCore.Users.Workflows.Activities
+{
+    public class SelectUsersInRoleTask : TaskActivity
+    {
+        private readonly UserManager<IUser> _userManager;
+        private readonly IUserService _userService;
+        private readonly IWorkflowExpressionEvaluator _expressionEvaluator;
+        protected readonly IStringLocalizer S;
+
+        public SelectUsersInRoleTask(UserManager<IUser> userManager, IUserService userService, IWorkflowExpressionEvaluator expressionvaluator, IStringLocalizer<SelectUsersInRoleTask> localizer)
+        {
+            _userManager = userManager;
+            _userService = userService;
+            _expressionEvaluator = expressionvaluator;
+            S = localizer;
+        }
+
+        public override string Name => nameof(SelectUsersInRoleTask);
+
+        public override LocalizedString DisplayText => S["Select Users in Role Task"];
+
+        public override LocalizedString Category => S["User"];
+
+        public WorkflowExpression<string> PropertyName
+        {
+            get => GetProperty(() => new WorkflowExpression<string>());
+            set => SetProperty(value);
+        }
+
+        public WorkflowExpression<string> RoleName
+        {
+            get => GetProperty(() => new WorkflowExpression<string>());
+            set => SetProperty(value);
+        }
+
+        public override IEnumerable<Outcome> GetPossibleOutcomes(WorkflowExecutionContext workflowContext, ActivityContext activityContext)
+        {
+            return Outcomes(S["Done"], S["Empty"], S["Failed"]);
+        }
+
+        public override async Task<ActivityExecutionResult> ExecuteAsync(WorkflowExecutionContext workflowContext, ActivityContext activityContext)
+        {
+            var propName = await _expressionEvaluator.EvaluateAsync(PropertyName, workflowContext, null);
+            var roleName = await _expressionEvaluator.EvaluateAsync(RoleName, workflowContext, null);
+
+            if (!string.IsNullOrEmpty(propName) && !string.IsNullOrEmpty(roleName))
+            {
+                var usersInRole = await _userManager.GetUsersInRoleAsync(roleName);
+                if (usersInRole.Count > 0)
+                {
+                    List<string> output;
+                    if (propName.Contains("email", StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        output = usersInRole.Select((u) => (u as User)?.Email).ToList();
+                    }
+                    else
+                    {
+                        output = usersInRole.Select(u => u.UserName).ToList();
+                    }
+                    workflowContext.Properties[propName] = string.Join(",", output);
+                    return Outcomes("Done");
+                }
+                return Outcomes("Empty");
+            }
+            return Outcomes("Failed");
+        }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Users/Workflows/Drivers/RemoveUserRoleTaskDisplayDriver.cs

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+using OrchardCore.Workflows.Display;
+using OrchardCore.Workflows.Models;
+using OrchardCore.Users.Workflows.Activities;
+using OrchardCore.Users.Workflows.ViewModels;
+
+namespace OrchardCore.Users.Workflows.Drivers
+{
+    public class RemoveUserRoleTaskDisplayDriver : ActivityDisplayDriver<RemoveUserRoleTask, RemoveUserRoleTaskViewModel>
+    {
+        protected override void EditActivity(RemoveUserRoleTask activity, RemoveUserRoleTaskViewModel model)
+        {
+            model.UserName = activity.UserName.Expression;
+            model.RoleName = activity.RoleName.Expression;
+        }
+
+        protected override void UpdateActivity(RemoveUserRoleTaskViewModel model, RemoveUserRoleTask activity)
+        {
+            activity.UserName = new WorkflowExpression<string>(model.UserName);
+            activity.RoleName = new WorkflowExpression<string>(model.RoleName);
+        }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Users/Workflows/Drivers/SelectUsersInRoleTaskDisplayDriver.cs

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+using OrchardCore.Users.Workflows.Activities;
+using OrchardCore.Users.Workflows.ViewModels;
+using OrchardCore.Workflows.Display;
+using OrchardCore.Workflows.Models;
+
+namespace OrchardCore.Users.Workflows.Drivers
+{
+    public class SelectUsersInRoleTaskDisplayDriver : ActivityDisplayDriver<SelectUsersInRoleTask, SelectUsersInRoleTaskViewModel>
+    {
+        protected override void EditActivity(SelectUsersInRoleTask activity, SelectUsersInRoleTaskViewModel model)
+        {
+            model.PropertyName = activity.PropertyName.Expression;
+            model.RoleName = activity.RoleName.Expression;
+        }
+
+        protected override void UpdateActivity(SelectUsersInRoleTaskViewModel model, SelectUsersInRoleTask activity)
+        {
+            activity.PropertyName = new WorkflowExpression<string>(model.PropertyName);
+            activity.RoleName = new WorkflowExpression<string>(model.RoleName);
+        }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Users/Workflows/ViewModels/RemoveUserRoleTaskViewModel.cs

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+using System.ComponentModel.DataAnnotations;
+
+namespace OrchardCore.Users.Workflows.ViewModels
+{
+    public class RemoveUserRoleTaskViewModel
+    {
+        [Required]
+        public string UserName { get; set; }
+
+        [Required]
+        public string RoleName { get; set; }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Users/Workflows/ViewModels/SelectUsersInRoleTaskViewModel.cs

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+using System.ComponentModel.DataAnnotations;
+
+namespace OrchardCore.Users.Workflows.ViewModels
+{
+    public class SelectUsersInRoleTaskViewModel
+    {
+        [Required]
+        public string PropertyName { get; set; }
+
+        [Required]
+        public string RoleName { get; set; }
+    }
+}