Introduced help fnc for database

endpoints/addpermission.js

@@ -1,9 +1,55 @@
 //Call for adding a permission to a group or user
 //
+//Requiremenst for inserting data in DB
+const adduser= require('../helpfunctions/adduser');
+const addgroup= require('../helpfunctions/addgroup');
+const addobject= require('../helpfunctions/addobject');
+
 const handleAddPermission = (req, res, db) => {
     //Parsing req body 
     const { reqowner, reqownertype, reqobjname, reqtype} =req.body;
-    res.json('Trying to add a permission');
+    //Checking if req input combination existis in DB table permissions
+    //if yes returns error if no inserts permission in DB table
+    db.transaction (trx => {
+        trx.select('objname')
+        .from('permissions')
+        .where('owner', 'ilike', reqowner)
+        .andWhere('ownertype','ilike', reqownertype)
+        .andWhere('objname', 'ilike', reqobjname)
+        .andWhere('type', 'ilike', reqtype)
+        .then( data => {
+            if (data.length===0) {
+                return trx('permissions')
+                .returning('*')
+                .insert({
+                    owner: reqowner,
+                    ownertype: reqownertype,
+                    objname: reqobjname,
+                    type: reqtype
+                })
+                .into('permissions')
+                .then( permission => {
+                    res.json(permission[0]);
+                })
+            } 
+            return res.status(400).json('This permission already exists.');
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+        .catch (err => res.status(400).json('Error accesing database.'))
+    })
+    if (reqownertype.toLowerCase()==='user') {
+        //Inserts new user (implicitly) if needed
+        adduser.handleAddUser(reqowner, db);
+    }
+    if (reqownertype.toLowerCase()==='group') {
+        //Inserts new group (implicitly) if needed
+        addgroup.handleAddGroup(reqowner, db);
+    }
+    //Inserts new object (implicitly) if needed
+    addobject.handleAddObject(reqobjname, db);
+
+    
 }
 
 module.exports = {

endpoints/addusertogroup.js

@@ -1,5 +1,8 @@
 //Call for adding a user to a group
 //
+//Requiremenst for inserting data in DB
+const adduser= require('../helpfunctions/adduser');
+
 const handleAddUserToGroup = (req, res, db) => {
     //Parsing req body 
     const { reqgroup, requser} =req.body;
@@ -29,27 +32,10 @@ const handleAddUserToGroup = (req, res, db) => {
         .catch(trx.rollback)
         .catch (err => res.status(400).json('Error accesing database.'))
     })
-    //Checking if user existis in DB table users 
-    //if no inserts new user (implicitly)
-    db.transaction (trx => {
-        trx.select('username')
-        .from('users')
-        .where('username', 'ilike', requser)
-        .then ( data => {
-            if (data.length===0) {
-                return trx('users')
-                .returning('*')
-                .insert( {
-                    username: requser
-                })
-                .then(user => {
-                    console.log('Inserted new user implicitly.');
-                })
-            }
-        })
-        .then(trx.commit)
-        .catch(trx.rollback)
-    })
+
+    //Inserts new user (implicitly) if needed
+    adduser.handleAddUser(requser, db);
+  
 }
 
 module.exports = {

helpfunctions/addgroup.js

@@ -0,0 +1,27 @@
+//Checking if group existis in DB table groups 
+//if no inserts new group with no users (implicitly)
+const handleAddGroup = (reqgroup, db) => {
+    db.transaction (trx => {
+        trx.select('groupname')
+        .from('groups')
+        .where('groupname', 'ilike', reqgroup)
+        .then ( data => {
+            if (data.length===0) {
+                return trx('groups')
+                .returning('*')
+                .insert( {
+                    groupname: reqgroup,
+                    username: ''
+                })
+                .then(group => {
+                    console.log('Inserted new empty group implicitly.');
+                })
+            }
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+    })
+}
+module.exports = {
+    handleAddGroup
+}

helpfunctions/addobject.js

@@ -0,0 +1,26 @@
+//Checking if object existis in DB table objects 
+//if no inserts new object (implicitly)
+const handleAddObject = (reqobjname, db) => {
+    db.transaction (trx => {
+        trx.select('objname')
+        .from('objects')
+        .where('objname', 'ilike', reqobjname)
+        .then ( data => {
+            if (data.length===0) {
+                return trx('objects')
+                .returning('*')
+                .insert( {
+                    objname: reqobjname
+                })
+                .then(obj => {
+                    console.log('Inserted new object implicitly.');
+                })
+            }
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+    })
+}
+module.exports = {
+    handleAddObject
+}

helpfunctions/adduser.js

@@ -0,0 +1,26 @@
+//Checking if user existis in DB table users 
+//if no inserts new user (implicitly)
+const handleAddUser = (requser, db) => {
+    db.transaction (trx => {
+        trx.select('username')
+        .from('users')
+        .where('username', 'ilike', requser)
+        .then ( data => {
+            if (data.length===0) {
+                return trx('users')
+                .returning('*')
+                .insert( {
+                    username: requser
+                })
+                .then(user => {
+                    console.log('Inserted new user implicitly.');
+                })
+            }
+        })
+        .then(trx.commit)
+        .catch(trx.rollback)
+    })
+}
+module.exports = {
+    handleAddUser
+}