diff --git a/common/utils.js b/common/utils.js
index b39ec62..ba67f5e 100644
--- a/common/utils.js
+++ b/common/utils.js
@@ -27,7 +27,7 @@ const isInteger = (value) => {
 
 // dependency for publishedSchedule.js
 const calculateYear = (eventDate, gradeLevel) => {
-  if (gradeLevel) {
+  if (gradeLevel && gradeLevel.length) {
     const currentDay = new Date(eventDate);
     // console.log('current day', currentDay.getFullYear() + (currentDay.getMonth() >= 7 ? 2 : 1));
     if (gradeLevel.toLowerCase() === 'junior') {
diff --git a/routes/catalog.js b/routes/catalog.js
index f3c18a5..e286012 100644
--- a/routes/catalog.js
+++ b/routes/catalog.js
@@ -15,7 +15,7 @@ catalogRouter.get('/', async (req, res) => {
 
     const offset = (page - 1) * limit;
 
-    let query = 'FROM catalog WHERE 1=1';
+    let query = 'FROM catalog WHERE 1=1 AND hidden = false';
     // removed space at beginning here
 
     const params = [];
@@ -85,7 +85,9 @@ catalogRouter.get('/', async (req, res) => {
 catalogRouter.get('/:id', async (req, res) => {
   try {
     const { id } = req.params;
-    const allUsers = await db.query(`SELECT * FROM catalog WHERE id = $1;`, [id]);
+    const allUsers = await db.query(`SELECT * FROM catalog WHERE id = $1 AND hidden = false;`, [
+      id,
+    ]);
     res.status(200).json(keysToCamel(allUsers));
   } catch (err) {
     res.status(500).send(err.message);
@@ -94,13 +96,13 @@ catalogRouter.get('/:id', async (req, res) => {
 
 // -- POST - Adds a new row to the catalog table
 catalogRouter.post('/', async (req, res) => {
-  const { host, title, eventType, subject, description, year, season, location } = req.body;
+  const { host, title, eventType, subject, description, year, season } = req.body;
   try {
     const returnedData = await db.query(
-      `INSERT INTO catalog (id, host, title, event_type, subject, description, year, season, location)
-      VALUES (nextval('catalog_id_seq'), $1, $2, $3, $4, $5, $6, $7, $8)
+      `INSERT INTO catalog (id, host, title, event_type, subject, description, year, season, hidden)
+      VALUES (nextval('catalog_id_seq'), $1, $2, $3::event[], $4::subject[], $5, $6::year[], $7::season[], false)
       RETURNING id;`,
-      [host, title, eventType, subject, description, year, season, location],
+      [host, title, eventType, subject, description, year, season],
     );
     res.status(201).json({ id: returnedData[0].id, status: 'Success' });
   } catch (err) {
@@ -116,18 +118,17 @@ catalogRouter.post('/', async (req, res) => {
 catalogRouter.put('/:id', async (req, res) => {
   try {
     const { id } = req.params;
-    const { host, title, eventType, subject, description, year, location, season } = req.body;
+    const { host, title, eventType, subject, description, year, season } = req.body;
 
     const updatedCatalog = await db.query(
       `UPDATE catalog SET
        ${host ? 'host = $(host), ' : ''}
        ${title ? 'title = $(title),' : ''}
-       ${eventType ? 'event_type = $(eventType), ' : ''}
-       ${subject ? 'subject = $(subject), ' : ''}
+       ${eventType ? 'event_type = $(eventType)::event[], ' : ''}
+       ${subject ? 'subject = $(subject)::subject[], ' : ''}
        ${description ? 'description = $(description), ' : ''}
-       ${year ? 'year = $(year), ' : ''}
-       ${location ? 'location = $(location), ' : ''}
-       ${season ? 'season = $(season), ' : ''}
+       ${year ? 'year = $(year)::year[], ' : ''}
+       ${season ? 'season = $(season)::season[], ' : ''}
        id = '${id}'
         WHERE id = '${id}'
         RETURNING *;`,
@@ -139,7 +140,6 @@ catalogRouter.put('/:id', async (req, res) => {
         description,
         year,
         id,
-        location,
         season,
       },
     );
@@ -153,8 +153,14 @@ catalogRouter.put('/:id', async (req, res) => {
 catalogRouter.delete('/:id', async (req, res) => {
   try {
     const { id } = req.params;
-    const delUser = await db.query(`DELETE FROM catalog WHERE id = $1 RETURNING *;`, [id]);
-    res.status(200).send(keysToCamel(delUser));
+    const inUse = await db.query(`SELECT * FROM published_schedule WHERE event_id = $1;`, [id]);
+    let hidden;
+    if (inUse && inUse.length) {
+      hidden = await db.query(`UPDATE catalog SET hidden = true WHERE id = $1 RETURNING *;`, [id]);
+    } else {
+      hidden = await db.query(`DELETE FROM catalog WHERE id = $1 RETURNING *;`, [id]);
+    }
+    res.status(200).send(keysToCamel(hidden));
   } catch (err) {
     res.status(500).send(err.message);
   }
diff --git a/routes/publishedSchedule.js b/routes/publishedSchedule.js
index a515f27..8502938 100644
--- a/routes/publishedSchedule.js
+++ b/routes/publishedSchedule.js
@@ -394,7 +394,7 @@ publishedScheduleRouter.put('/:id', async (req, res) => {
         start_time = COALESCE($5, start_time),
         end_time = COALESCE($6, end_time),
         cohort = COALESCE($7, cohort),
-        notes = COALESCE($8, notes)
+        notes = COALESCE($8, notes),
         created_on = COALESCE($9, created_on)
 
       WHERE id = $10
diff --git a/server/schema/catalog.sql b/server/schema/catalog.sql
index c3096a2..e32df3e 100644
--- a/server/schema/catalog.sql
+++ b/server/schema/catalog.sql
@@ -8,10 +8,10 @@ CREATE TABLE catalog (
   id SERIAL PRIMARY KEY,
   host VARCHAR(50) NOT NULL,
   title VARCHAR(50) NOT NULL,
-  event_type event NOT NULL,
-  subject subject NOT NULL,
+  event_type event[] NOT NULL,
+  subject subject[] NOT NULL,
   description VARCHAR(50) NOT NULL,
   year year NOT NULL,
   season season,
-  location VARCHAR(256)
+  hidden boolean NOT NULL
 );
diff --git a/server/schema/day.sql b/server/schema/day.sql
index 1ac0b41..c29f5d2 100644
--- a/server/schema/day.sql
+++ b/server/schema/day.sql
@@ -1,9 +1,10 @@
 DROP TABLE IF EXISTS day;
 CREATE TABLE IF NOT EXISTS day (
     id serial PRIMARY KEY,
-    event_date DATE NOT NULL,
+    event_date DATE UNIQUE NOT NULL,
     start_time TIME NOT NULL,
     end_time TIME NOT NULL,
     location VARCHAR( 256 ) NOT NULL,
-    notes VARCHAR( 250 )
+    notes VARCHAR( 250 ),
+    day_count INTEGER
 );
\ No newline at end of file
diff --git a/server/schema/published_schedule.sql b/server/schema/published_schedule.sql
index 90e6fe7..ee3feee 100644
--- a/server/schema/published_schedule.sql
+++ b/server/schema/published_schedule.sql
@@ -13,7 +13,7 @@ CREATE TABLE IF NOT EXISTS published_schedule (
     FOREIGN KEY (event_id)
         REFERENCES catalog (id),
     FOREIGN KEY (day_id)
-        REFERENCES day (id)
+        REFERENCES day (id) ON DELETE CASCADE
 );
 
 CREATE INDEX idx_day_id ON published_schedule (day_id);
\ No newline at end of file