Add new admin blueprint with new user delete feature. Reorganize templates etc.

app/admin/__init__.py

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+from flask import Blueprint
+
+admin = Blueprint('admin', __name__)
+
+from . import views

app/admin/views.py

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+from flask import (abort, current_app, flash, redirect, request,
+                   render_template, url_for, send_from_directory)
+from flask_login import current_user, login_required
+from ..models import Corpus, User
+from ..tables import AdminUserTable, AdminUserItem
+from . import admin
+from ..decorators import admin_required
+from .. import db
+import os
+
+
+@admin.route('/overview', methods=['GET', 'POST'])
+@login_required
+@admin_required
+def for_admins_only():
+    users = User.query.order_by(User.username).all()
+    items = [AdminUserItem(u.username, u.email, u.role_id, u.confirmed, u.id) for u in users]
+    table = AdminUserTable(items).__html__()  # converts table object to html string
+    table = table.replace('tbody', 'tbody class="list"', 1)  # add class list to tbody element. Needed by list.js
+    return render_template('admin/admin.html.j2', title='Administration tools',
+                           table=table)
+
+
+@admin.route('/overview/admin_user_page/<int:user_id>', methods=['GET', 'POST'])
+@login_required
+@admin_required
+def admin_user_page(user_id):
+    selected_user = User.query.filter_by(id=user_id).first()
+    title = 'Administration of user {} with ID: {}'.format(selected_user.username,
+                                                           selected_user.id)
+    return render_template('admin/admin_user_page.html.j2',
+                           title=title, selected_user=selected_user)
+
+
+@admin.route('/overview/admin_user_page/delete/<int:user_id>', methods=['GET', 'POST'])
+@login_required
+@admin_required
+def admin_delete_user(user_id):
+    selected_user = User.query.filter_by(id=user_id).first()
+    db.session.delete(selected_user)
+    db.session.commit()
+    flash('User {} has been deleted!'.format(user_id))
+    return redirect(url_for('admin.for_admins_only'))