diff --git a/code/backend/nest_backend/routes/repository/alerts/alert.py b/code/backend/nest_backend/routes/repository/alerts/alert.py
index de55f54..4b968e3 100644
--- a/code/backend/nest_backend/routes/repository/alerts/alert.py
+++ b/code/backend/nest_backend/routes/repository/alerts/alert.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin
 import datetime
diff --git a/code/backend/nest_backend/routes/repository/alerts/repository_alerts.py b/code/backend/nest_backend/routes/repository/alerts/repository_alerts.py
index ebee173..7b6be41 100644
--- a/code/backend/nest_backend/routes/repository/alerts/repository_alerts.py
+++ b/code/backend/nest_backend/routes/repository/alerts/repository_alerts.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin
 
diff --git a/code/backend/nest_backend/routes/repository/conditions/condition.py b/code/backend/nest_backend/routes/repository/conditions/condition.py
index b04ccad..41aa68a 100644
--- a/code/backend/nest_backend/routes/repository/conditions/condition.py
+++ b/code/backend/nest_backend/routes/repository/conditions/condition.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin
 
diff --git a/code/backend/nest_backend/routes/repository/conditions/repository_conditions.py b/code/backend/nest_backend/routes/repository/conditions/repository_conditions.py
index a7ac435..26382b4 100644
--- a/code/backend/nest_backend/routes/repository/conditions/repository_conditions.py
+++ b/code/backend/nest_backend/routes/repository/conditions/repository_conditions.py
@@ -4,7 +4,7 @@ from nest_backend.gestione import repository_auth, json_error, json_success, Con
     find_user, get_jwt_identity
 from nest_backend.database import ext
 from flask_cors import cross_origin
-from gestione import hashtag_validator
+from nest_backend.gestione import hashtag_validator
 
 
 @cross_origin()
diff --git a/code/backend/nest_backend/routes/repository/repositories.py b/code/backend/nest_backend/routes/repository/repositories.py
index de4ded7..eea48bc 100644
--- a/code/backend/nest_backend/routes/repository/repositories.py
+++ b/code/backend/nest_backend/routes/repository/repositories.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 import datetime
 from flask_cors import cross_origin
diff --git a/code/backend/nest_backend/routes/repository/repository.py b/code/backend/nest_backend/routes/repository/repository.py
index 5a97927..7746b41 100644
--- a/code/backend/nest_backend/routes/repository/repository.py
+++ b/code/backend/nest_backend/routes/repository/repository.py
@@ -1,11 +1,12 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin
 import datetime
 
 
+
 @cross_origin()
 @jwt_required()
 @repository_auth
@@ -210,6 +211,9 @@ def page_repository(rid):
                     type_ = ConditionType(c['type'])
                 except KeyError:
                     return json_error("Unknown `type` specified."), 400
-                ext.session.add(Condition(type=type_, content=c['content'], repository_id=rid))
+                content = c['content']
+                if type_ == ConditionType.hashtag:
+                    content = hashtag_validator(content)
+                ext.session.add(Condition(type=type_, content=content, repository_id=rid))
                 ext.session.commit()
         return json_success(repository.to_json()), 200
diff --git a/code/backend/nest_backend/routes/users/user.py b/code/backend/nest_backend/routes/users/user.py
index c8d8ee8..92900fa 100644
--- a/code/backend/nest_backend/routes/users/user.py
+++ b/code/backend/nest_backend/routes/users/user.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin
 
diff --git a/code/backend/nest_backend/routes/users/users.py b/code/backend/nest_backend/routes/users/users.py
index 86eff1c..51e66f6 100644
--- a/code/backend/nest_backend/routes/users/users.py
+++ b/code/backend/nest_backend/routes/users/users.py
@@ -1,6 +1,6 @@
 from flask import render_template, abort, jsonify, request
 from nest_backend.database import *
-from flask_jwt_extended import jwt_required
+from flask_jwt_extended import jwt_required, get_jwt_identity
 from nest_backend.gestione import *
 from flask_cors import cross_origin