fix(Advanced Group Setting): change input validation rule for group url (github #49)

#49

www/view/src/components/view/GroupSettingAdvanced.js

@@ -82,10 +82,10 @@ class GroupSettingAdvanced extends React.Component {
       },
       {
         name: 'slug',
-        passPattern: /^.{0,30}$/,
+        passPattern: /^.{5,30}$/,
         errorMessage: this.props.intl.formatMessage(
-          { id: 'message.error.noMoreThan_N_characters' },
-          { n: 30 }
+          { id: 'message.error.within_N1_to_N2_characters' },
+          { n1: 5, n2: 30 }
         )
       }
     ])

www/view/src/components/view/NewGroup.js

@@ -95,6 +95,13 @@ class newRepositoryFork extends React.Component {
           { s: this.props.intl.formatMessage({ id: 'label.groupURL' }) }
         )
       },
+      {
+        name: 'slug',
+        passPattern: /^[0-9a-zA-z_]+$/,
+        errorMessage: this.props.intl.formatMessage(
+          { id: 'message.error.requireCombinationOfCharactersNumbersAndUnderscore' }
+        )
+      },
       {
         name: 'slug',
         passPattern: /^.{5,30}$/,