Add methods to create, update, and view summary of issues pertaining to a congressional office.
user
```ruby
class IssuesController < ApplicationController

  def index
    @issues_report = Issue.aggregate_issues
    @unresolved_issues = Issue.unresolved

    render json: { issues_report: @issues_report, unresolved_issues: @unresolved_issues }
  end

  def new
    @issue_categories = ['Incorrect phone number', 'Office location moved', 'Trouble downloading v-card', 'Incorrect Email']
    @issue = Issue.new

    render json: { issue_categories: @issue_categories, issue: @issue }
  end

  def create
    @issue = Issue.create(issue_params)
    if @issue.save
      render json: { status: :created }
    else
      render json: { status: :unprocessable_entity }
    end
  end

  def update
    issue = Issue.find_by(id: params[:id])
    if issue.update_attributes(resolved: true)
      render json: { status: :reset_content }
    else
      render json: { status: :unprocessable_entity }
    end
  end

  private

  def issue_params
    params.require(:issue).permit(:issue_type, :resolved, :office_location_id)
  end
end
```
assistant