Merge pull request #9 from prashantsinalkar/master

added solr code search

7 files changed, 309 insertions, 53 deletions

diff --git a/R_on_Cloud/default_config.py b/R_on_Cloud/default_config.py
index 842baec..a0a1737 100644
--- a/R_on_Cloud/default_config.py
+++ b/R_on_Cloud/default_config.py
@@ -46,3 +46,10 @@ TORNADO_PORT = '8000'
 # class ExecutionHandler.
 DEFAULT_TORNADO_WORKERS = 1
 DEFAULT_REQUEST_COUNT = 1
+
+# Solr search engine config
+
+HOST       = "localhost"
+PORT       = "8983"
+COLLECTION = "r_code_search_collection"
+URL = 'http://' + HOST + ':' + PORT + '/solr/' + COLLECTION
diff --git a/website/query.py b/website/query.py
index 8ccd7a2..863c497 100644
--- a/website/query.py
+++ b/website/query.py
@@ -2,11 +2,14 @@ GET_ALLMAINCATEGORY_SQL = """
                 SELECT category_id, maincategory
                 FROM list_of_category ORDER BY maincategory ASC
                 """
+
+
 GET_ALLSUBCATEGORY_SQL = """
                 SELECT id, subcategory_id, subcategory, maincategory_id
                 FROM list_of_subcategory ORDER BY subcategory ASC
                 """
 
+
 GET_SUBCATEGORY_SQL = """
                 SELECT id, subcategory_id, subcategory, maincategory_id
                 FROM list_of_subcategory WHERE maincategory_id =%s
@@ -14,8 +17,6 @@ GET_SUBCATEGORY_SQL = """
                 """
 
 
-
-
 GET_TBC_PREFERENCE_SQL = """
                 SELECT DISTINCT (loc.category_id), pe.id,
                 tcbm.sub_category, loc.maincategory, pe.book as book,
@@ -61,6 +62,7 @@ GET_TBC_EXAMPLE_FILE_SQL = """
                 WHERE tcef.filetype = 'S' AND tcef.example_id = %s
                 """
 
+
 GET_TBC_CONTRIBUTOR_DETAILS_SQL = """
                 SELECT preference.id,
                 proposal.full_name as proposal_full_name,
@@ -73,20 +75,24 @@ GET_TBC_CONTRIBUTOR_DETAILS_SQL = """
                 WHERE preference.id = %s
                 """
 
+
 GET_TBC_CHAPTER_ID_SQL = """
                 SELECT chapter_id FROM textbook_companion_example WHERE id = %s
                 """
 
+
 INSERT_TBC_EXAMPLE_VIEW_SQL = """
                 INSERT INTO textbook_companion_example_views
                 (example_id,chapter_id) VALUES(%s, %s)
                 """
 
+
 UPDATE_TBC_EXAMPLE_VIEW_SQL = """
                 UPDATE textbook_companion_example_views
                 SET views_count = views_count + 1 WHERE example_id = %s
                 """
 
+
 GET_TBC_EXAMPLE_VIEW_SQL = """
                 SELECT views_count FROM textbook_companion_example_views
                 WHERE example_id = %s
@@ -96,6 +102,7 @@ GET_TBC_EXAMPLE_R_CLOUD_COMMENT_SQL = """
                 SELECT COUNT(id) FROM r_cloud_comment WHERE example= %s
                 """
 
+
 GET_TBC_EXAMPLE_CHAPTER_ID_SQL = """
                 SELECT DISTINCT(chapter_id)
                 FROM textbook_companion_example
@@ -112,6 +119,7 @@ GET_TBC_CHAPTER_PREFERENCE_ID_SQL = """
                 FROM textbook_companion_chapter WHERE id = %s)
                 """
 
+
 GET_TBC_PREFERENCE_DETAIL_CATEGORY_SQL = """
                 SELECT DISTINCT (loc.category_id),
                 tcbm.sub_category,loc.maincategory, pe.book as book,
@@ -129,6 +137,7 @@ GET_TBC_PREFERENCE_DETAIL_CATEGORY_SQL = """
                 AND pe.id= %s
                 """
 
+
 GET_TBC_PREFERENCE_FROM_CATEGORY_ID_SQL = """
                 SELECT DISTINCT (loc.category_id),pe.id,
                 tcbm.sub_category,loc.maincategory, pe.book as
@@ -146,6 +155,7 @@ GET_TBC_PREFERENCE_FROM_CATEGORY_ID_SQL = """
                 AND tcbm.sub_category = %s
                 """
 
+
 GET_TBC_CHAPTER_DETAIL_SQL = """
                 SELECT id, name, number, preference_id
                 FROM textbook_companion_chapter
@@ -154,3 +164,65 @@ GET_TBC_CHAPTER_DETAIL_SQL = """
                 FROM textbook_companion_chapter WHERE id = %s)
                 ORDER BY number ASC
                 """
+
+
+GET_SEARCH_BOOK_SQL = """
+                SELECT pe.id, pe.book as book, pe.author as author,
+                pe.publisher as publisher,pe.year as year,
+                pe.id as pe_id, po.approval_date as approval_date
+                FROM textbook_companion_preference pe
+                LEFT JOIN textbook_companion_proposal po ON
+                pe.proposal_id = po.id WHERE
+                (pe.book like %s OR pe.author like %s)
+                AND po.proposal_status = 3
+                AND pe.approval_status = 1
+                ORDER BY (pe.book = %s OR pe.author = %s) DESC,
+                length(pe.book)
+                """
+
+
+GET_SEARCH_POPULAR_BOOK_SQL = """
+                SELECT pe.id, pe.book as book, pe.author as author,
+                pe.publisher as publisher,pe.year as year,
+                pe.id as pe_id, po.approval_date as approval_date,
+                tcph.hitcount FROM textbook_companion_preference pe
+                left join textbook_companion_preference_hits tcph on
+                tcph.pref_id = pe.id
+                LEFT JOIN textbook_companion_proposal po ON
+                pe.proposal_id = po.id WHERE po.proposal_status = 3
+                AND pe.approval_status = 1
+                ORDER BY tcph.hitcount DESC LIMIT 10
+                """
+
+
+GET_SEARCH_RECENT_BOOK_SQL = """
+                SELECT pe.id, pe.book as book, pe.author as author,
+                pe.publisher as publisher,pe.year as year,
+                pe.id as pe_id, po.approval_date as approval_date,
+                tcph.hitcount, tcph.last_search
+                FROM textbook_companion_preference pe
+                left join textbook_companion_preference_hits tcph
+                on tcph.pref_id = pe.id
+                LEFT JOIN textbook_companion_proposal po ON
+                pe.proposal_id = po.id WHERE po.proposal_status = 3
+                AND pe.approval_status = 1
+                ORDER BY tcph.last_search DESC LIMIT 10
+                """
+
+
+GET_BOOK_CATEGORY_FROM_ID = """
+                SELECT DISTINCT (loc.category_id),pe.id,
+                tcbm.sub_category,loc.maincategory, pe.book as
+                book,pe.author as author, pe.publisher as publisher,
+                pe.year as year, pe.id as pe_id, pe.edition,
+                po.approval_date as approval_date
+                FROM textbook_companion_preference pe LEFT JOIN
+                textbook_companion_proposal po ON pe.proposal_id = po.id
+                LEFT JOIN textbook_companion_book_main_subcategories
+                tcbm ON pe.id = tcbm.pref_id LEFT JOIN list_of_category
+                loc ON tcbm.main_category = loc.category_id WHERE
+                po.proposal_status = 3 AND pe.approval_status = 1
+                AND pe.id = tcbm.pref_id AND
+                pe.cloud_pref_err_status = 0 AND
+                pe.id=%s
+                """
diff --git a/website/static/website/js/cloud.js b/website/static/website/js/cloud.js
index 43f035f..9a632e7 100644
--- a/website/static/website/js/cloud.js
+++ b/website/static/website/js/cloud.js
@@ -905,10 +905,27 @@ $(document.body).ready(function() {
         });
     });
     /********************************************/
+    /********************************************/
+    /********************************************/
+    /********* search feature *******************/
+    /********************************************/
+    $(document).on("change", "input[type=radio][name=optradio]", function() {
+        if (this.value == 'bybook') {
+            $("#searched_code").hide();
+            $("#searched_book").show();
+        }
+        else if (this.value == 'bycode') {
+            $("#searched_code").show();
+            $("#searched_book").hide();
+        }
+    });
+    /********************************************/
     $(document).on("click", "#search", function() {
         ajax_loader(this);
-        $("#relevant").html('');
         var search_string = jQuery.trim($("#search-input").val());
+        if(search_string != ''){
+        if($("input[name='optradio']:checked").val() == 'bybook'){
+        $("#relevant").html('');
         if (search_string == '') {
             search_string = 'Null';
         }
@@ -920,13 +937,17 @@ $(document.body).ready(function() {
                     search_string: search_string,
                 },
                 success: function(data) {
+                    if(data.length > 0 ){
                     $("#relevant").html('<h2>Relevant</h2><hr>');
                     for (var i = 0; i < data.length; i++) {
                         $("#relevant").append(
-                            '<a  href="?book_id=' + data[i].ids + '" class="">' + data[i].book +
+                            '<a  href="?book_id=' + data[i].id + '" class="">' + data[i].book +
                             ' (Author: ' + data[i].author + ')</a><hr>');
                    
                     }
+                    }else{
+                    $("#relevant").append('Oops! This book is not availabe!');
+                    }
                     ajax_loader("clear");
                 }
             }),
@@ -946,7 +967,6 @@ $(document.body).ready(function() {
                     }
                     ajax_loader("clear");
                 }
-                
             }),
             $.ajax({
                 url: 'search_book/recent/',
@@ -962,9 +982,33 @@ $(document.body).ready(function() {
                             '<a  href="?book_id=' + data[i].ids + '" class="">' + data[i].book +
                             ' (Author: ' + data[i].author + ')</a><hr>');
                     }
-                    ajax_loader("clear");
                 }
             });
+            } else{
+                ajax_loader(this);
+                 $.ajax({
+                    url: 'search_in_code/',
+                    dataType: 'JSON',
+                    type: 'GET',
+                    data: {
+                        search_string: search_string,
+                    },
+                    success: function(data) {
+                    if(data.error != 'True'){
+                         console.log(data.data);
+                         $("#searched_code_data").html("");
+                         $("#searched_code").html(data.data);
+                    }else{
+                         alert("Oops! Search engine is away, please try after some time!")
+                        }
+                    }
+                });
+                ajax_loader("clear");
+            }
+            }else{
+                alert("Please enter the search string!");
+            }
+                ajax_loader("clear");
     });
 
     $(document).on("click", "#search_book", function(e) {
@@ -986,7 +1030,7 @@ $(document.body).ready(function() {
                     $("#popular").html('<h2>Popular</h2><hr>');
                     for (var i = 0; i < data.length; i++) {
                         $("#popular").append(
-                            '<a  href="?book_id=' + data[i].ids + '" class="">' + data[i].book +
+                            '<a  href="?book_id=' + data[i].id + '" class="">' + data[i].book +
                             ' (Author: ' + data[i].author + ')</a><hr>');
                     }
                     ajax_loader("clear");
@@ -1003,7 +1047,7 @@ $(document.body).ready(function() {
                     $("#recent").html('<h2>Recent</h2><hr>');
                     for (var i = 0; i < data.length; i++) {
                         $("#recent").append(
-                            '<a  href="?book_id=' + data[i].ids + '" class="">' + data[i].book +
+                            '<a  href="?book_id=' + data[i].id + '" class="">' + data[i].book +
                             ' (Author: ' + data[i].author + ')</a><hr>');
                     }
                     ajax_loader("clear");
@@ -1068,14 +1112,14 @@ function doSubmit(){
 }
 
 function checkserver(){
-
-    $.ajax({url: api_url,
-            dataType: "jsonp",
-            statusCode: {
-                404: function (response) {
-                    alert("Oops! R cloud server is not available, please try after some time");
-                }
-            }
+    $.ajax({url: 'check_server/',
+            dataType: "json",
+            success : function (data) {
+                if((data.status == 200) || (data.error != 'True')){
+                }else{
+                        alert("R cloud server is not available, please try after some time");
+                    }
+               }
      });
 }
 
diff --git a/website/static/website/templates/index.html b/website/static/website/templates/index.html
index 18dd01b..6d68515 100644
--- a/website/static/website/templates/index.html
+++ b/website/static/website/templates/index.html
@@ -45,9 +45,9 @@
         <div class="collapse navbar-collapse" id="collapsibleNavbar">
             <ul class="navbar-nav ml-auto">
                 {% if user and not user.is_anonymous %} {% if not user.is_staff %}
-               <!--> <li class="nav-item">
-                    <a class="nav-link" href="" id="search_book" data-toggle="modal" data-target="#search_wrapper">Search Book</a>
-                </li> -->
+               <li class="nav-item">
+                    <a class="nav-link" href="" id="search_book" data-toggle="modal" data-target="#search_wrapper"><i class="fa fa-search" aria-hidden="true"></i>Search Book</a>
+                </li>
                 <li class="nav-item">
                     <a class="nav-link" href="" id="about-us" data-toggle="modal" data-target="#about_wrapper">About</a>
                 </li>
@@ -69,9 +69,9 @@
                     <a style="color:red">Hello, {{ user.get_full_name }}!</a>
                 </li>
                 {% else %}
-               <!-- > <li class="nav-item">
-                    <a class="nav-link" href="" id="search_book" data-toggle="modal" data-target="#search_wrapper">Search Book</a>
-                </li> -->
+               <li class="nav-item">
+                    <a class="nav-link" href="" id="search_book" data-toggle="modal" data-target="#search_wrapper"><i class="fa fa-search text-primary" aria-hidden="true"></i>Search</a>
+                </li>
                 <li class="nav-item">
                     <a class="nav-link" href="" id="about-us" data-toggle="modal" data-target="#about_wrapper">About</a>
                 </li>
@@ -500,21 +500,26 @@
 
                 <!-- Modal Header -->
                 <div class="modal-header">
-                    <h4 class="modal-title">Search book</h4>
+                    <h4 class="modal-title">Search</h4>
                     <button type="button" class="close" data-dismiss="modal">&times;</button>
                 </div>
 
                 <!-- Modal body -->
                 <div class="modal-body">
                     <div class="input-group">
-                        <input id="search-input" type="text" class="form-control" placeholder="Enter book or author name">
+                        <input id="search-input" type="text" class="form-control" placeholder="Enter book/author name or code string">
                         <span class="input-group-btn">
                     <button id="search" class="btn btn-info" type="button">Search</button>
                 </span>
                     </div>
+
+                    <div class="custom-control custom-radio">
+                        <label class="radio-inline"><input id="bybook" type="radio" value="bybook" name="optradio" checked="checked"> <i class="fa fa-search" aria-hidden="true"></i>Search by book/author name <i class="fa fa-book" aria-hidden="true"></i></label>
+                        <label class="radio-inline"><input id="bycode" type="radio" value="bycode" name="optradio"> <i class="fa fa-search" aria-hidden="true"></i>Search by code</label>
+                    </div>
                 </div>
                 <div class="container">
-                    <div class="row">
+                    <div id="searched_book" class="row">
                         <div id="relevant" class="col-4 small">
                         </div>
                         <div id="popular" class="col-4 small bg-light text-primary" style="word-wrap: break-word;overflow:auto;">
@@ -522,6 +527,8 @@
                         <div id="recent" class="col-4 small bg-light text-primary" style="word-wrap: break-word;overflow:auto;">
                         </div>
                     </div>
+                    <div id="searched_code" class="row">
+                    </div>
                 </div>
                 <!-- Modal footer -->
                 <div class="modal-footer">
diff --git a/website/static/website/templates/search_code.html b/website/static/website/templates/search_code.html
new file mode 100644
index 0000000..f5d082f
--- /dev/null
+++ b/website/static/website/templates/search_code.html
@@ -0,0 +1,28 @@
+<span class="badge badge-info">Search results count {{ data|length }}</span>
+<div id="searched_code_data" class="col-12 bg-light text-success" style="word-wrap: break-word;overflow:auto;">
+
+{% for result in data %}
+<div><span class="badge badge-info">{{ forloop.counter }}</span>
+    <i class="fa fa-book" aria-hidden="true"></i>
+    Book: <span class="text-info">{{ result.book }}</span></div>
+<div><i class="fa fa-file" aria-hidden="true"></i>
+    Chapter: <span class="text-info">{{result.chapter.0 }}</span></div>
+<div><i class="fa fa-bars" aria-hidden="true"></i>
+    Example: <span class="text-info">{{ result.example.0 }}</span></div>
+<div><i class="fa fa-external-link" aria-hidden="true"></i>
+    Links: <span class="text-success">
+    <a href="https://r.fossee.in/textbook-companion/download/book/{{ result.book_id.0 }}" target="_blank">Download book 
+        <i class="fa fa-download" aria-hidden="true"></i>
+    </a>
+    </span> <i class="fa fa-expand" aria-hidden="true"></i>
+
+    <span class="text-success">
+        <a href="http://rcloud.fossee.in/index?eid={{ result.example_id }}" target="_blank"> View this example 
+            <i class="fa fa-cloud" aria-hidden="true"></i>
+        </a>
+    </span>
+</div>
+<hr>
+{% endfor %}
+
+</div>
diff --git a/website/urls.py b/website/urls.py
index 127cf09..5a13bb4 100644
--- a/website/urls.py
+++ b/website/urls.py
@@ -7,7 +7,7 @@ urlpatterns = [
     path('', views.index, name='index'),
     path('index', views.index, name='index'),
     path('get_subcategories/', ajax.subcategories,
-        name='subcategories'),
+         name='subcategories'),
     path('get_books/', ajax.books, name='books'),
     path('get_chapters/', ajax.chapters, name='chapters'),
     path('get_examples/', ajax.examples, name='examples'),
@@ -15,7 +15,12 @@ urlpatterns = [
     path('get_code/', ajax.code, name='code'),
     path('get_diff/', ajax.diff, name='diff'),
     path('update_view_count/', views.update_view_count,
-        name='update_view_count'),
+         name='update_view_count'),
     path('get_contributor/', ajax.contributor, name='contributor'),
     path('reset/', views.reset, name='reset'),
-    ]
+    path('search_book/', views.search_book, name='search_book'),
+    path('search_book/popular/', views.popular, name='popular'),
+    path('search_book/recent/', views.recent, name='recent'),
+    path('search_in_code/', views.solr_search_string, name='solr_search_string'),
+    path('check_server/', views.checkserver, name='checkserver'),
+]
diff --git a/website/views.py b/website/views.py
index e554ef4..b449b27 100644
--- a/website/views.py
+++ b/website/views.py
@@ -1,10 +1,10 @@
 from django.shortcuts import render, redirect
-from django.http import HttpResponse
-from django.template import loader
+from django.http import HttpResponse, JsonResponse
+from django.template import loader, Context, Template
 import requests
 import uuid
 from R_on_Cloud.config import (API_URL_UPLOAD, API_URL_RESET, AUTH_KEY,
-                               API_URL_SERVER)
+                               API_URL_SERVER, URL)
 from website.models import *
 from django.db.models import Q
 import json as simplejson
@@ -12,6 +12,8 @@ from . import utils
 from django.db import connections
 from collections import defaultdict
 from .query import *
+import pysolr
+import json
 
 
 def dictfetchall(cursor):
@@ -147,23 +149,10 @@ def index(request):
         template = loader.get_template('index.html')
         return HttpResponse(template.render(context, request))
     elif book_id:
-        books = TextbookCompanionPreference.objects\
-            .db_manager('r').raw("""
-                        SELECT DISTINCT (loc.category_id),pe.id,
-                        tcbm.sub_category,loc.maincategory, pe.book as
-                        book,loc.category_id,tcbm.sub_category,
-                        pe.author as author, pe.publisher as publisher,
-                        pe.year as year, pe.id as pe_id, pe.edition,
-                        po.approval_date as approval_date
-                        FROM textbook_companion_preference pe LEFT JOIN
-                        textbook_companion_proposal po ON pe.proposal_id = po.id
-                        LEFT JOIN textbook_companion_book_main_subcategories
-                        tcbm ON pe.id = tcbm.pref_id LEFT JOIN list_of_category
-                        loc ON tcbm.main_category = loc.category_id WHERE
-                        po.proposal_status = 3 AND pe.approval_status = 1
-                        AND pe.id = tcbm.pref_id AND
-                        pe.cloud_pref_err_status = 0 AND
-                        pe.id=%s""", [book_id])
+        with connections['r'].cursor() as cursor:
+            cursor.execute(GET_BOOK_CATEGORY_FROM_ID,
+                           params=[book_id])
+            books = cursor.fetchone()
         books = list(books)
 
         if len(books) == 0:
@@ -179,9 +168,9 @@ def index(request):
             template = loader.get_template('index.html')
             return HttpResponse(template.render(context, request))
 
-        books = get_books(books[0].sub_category)
-        maincat_id = books[0].category_id
-        subcat_id = books[0].sub_category
+        req_books = get_books(books[2])
+        maincat_id = books[0]
+        subcat_id = books[2]
         request.session['maincat_id'] = maincat_id
         request.session['subcategory_id'] = subcat_id
         request.session['book_id'] = book_id
@@ -196,8 +185,8 @@ def index(request):
             'subcatg': subcateg_all,
             'maincat_id': maincat_id,
             'chapters': chapters,
-            'subcategory_id': books[0].sub_category,
-            'books': books,
+            'subcategory_id': books[2],
+            'books': req_books,
             'book_id': int(book_id),
 
         }
@@ -375,3 +364,107 @@ def reset(request):
     response = {"data": "ok"}
     return HttpResponse(simplejson.dumps(response),
                         content_type='application/json')
+
+
+def search_book(request):
+    result = {}
+    response_dict = []
+    if request.is_ajax():
+        exact_search_string = request.GET.get('search_string')
+        search_string = "%" + exact_search_string + "%"
+        with connections['r'].cursor() as cursor:
+            cursor.execute(GET_SEARCH_BOOK_SQL, [search_string, search_string,
+                                                 str(exact_search_string),
+                                                 str(exact_search_string)])
+            result = dictfetchall(cursor)
+    return HttpResponse(simplejson.dumps(result),
+                        content_type='application/json')
+
+
+def popular(request):
+    result = {}
+    response_dict = []
+    if request.is_ajax():
+        search_string = request.GET.get('search_string')
+        search_string = "%" + search_string + "%"
+        with connections['r'].cursor() as cursor:
+            cursor.execute(GET_SEARCH_POPULAR_BOOK_SQL)
+            result = dictfetchall(cursor)
+    return HttpResponse(simplejson.dumps(result),
+                        content_type='application/json')
+
+
+def recent(request):
+    result = {}
+    response_dict = []
+    if request.is_ajax():
+        exact_search_string = request.GET.get('search_string')
+        search_string = "%" + exact_search_string + "%"
+        with connections['r'].cursor() as cursor:
+            cursor.execute(GET_SEARCH_RECENT_BOOK_SQL)
+            result = dictfetchall(cursor)
+    return HttpResponse(simplejson.dumps(result),
+                        content_type='application/json')
+
+
+def update_pref_hits(pref_id):
+    updatecount = TextbookCompanionPreferenceHits.objects.using('r')\
+        .filter(pref_id=pref_id)\
+        .update(hitcount=F('hitcount') + 1)
+    if not updatecount:
+        insertcount = TextbookCompanionPreferenceHits.objects.using('r')\
+            .get_or_create(pref_id=pref_id, hitcount=1)
+    return
+
+
+def solr_search_string(request):
+
+    try:
+        requests.get(URL)
+        results = {}
+        context = []
+        response_dict = []
+        search_string = request.GET.get('search_string')
+        q = "content:'{0}'".format(search_string)
+        fl = "*"
+        qt = "select"
+        fq = "*"
+        rows = "100"
+        wt = 'json'
+        solr = pysolr.Solr(URL, search_handler="/"+qt, timeout=5)
+        results = solr.search(q, **{
+            'rows': rows,
+            'group': 'true',
+            'group.field': 'example',
+            'group.limit': '1',
+            'group.main': 'true',
+        })
+        for obj in results:
+            response = {
+                'example_id': obj['id'],
+                'book_id': obj['book_id'],
+                'book': obj['title'],
+                'author': obj['author'],
+                'chapter': obj['chapter'],
+                'example': obj['example'],
+            }
+            response_dict.append(response)
+
+        print("Saw {0} result(s).".format(len(results)))
+        template = loader.get_template('search_code.html')
+        context = {'data': response_dict}
+        data = template.render(context)
+        return JsonResponse({'data': data})
+    except Exception:
+        context = {'data': ''}
+        template = loader.get_template('search_code.html')
+        data = template.render(context)
+        return JsonResponse({'data': '', 'error': 'True'})
+
+
+def checkserver(request):
+    try:
+        req_status = requests.get(API_URL_SERVER)
+        return JsonResponse({'status': req_status.status_code})
+    except Exception:
+        return JsonResponse({'error': 'True'})