Backend update renamed controllers and models to be singular

server/models/Tag.js

@@ -0,0 +1,147 @@
+let db = require('@config/database')
+
+let Tag = module.exports = {}
+
+
+Tag.removeTagFromNote = (userId, tagId) => {
+	return new Promise((resolve, reject) => {
+		db.promise()
+		.query(`DELETE FROM notes_tags WHERE id = ? AND user_id = ? LIMIT 1;`, [tagId, userId])
+		.then((rows, fields) => {
+			resolve(rows[0]) //Return new ID
+		})
+		.catch(console.log)
+	})
+}
+
+Tag.addToNote = (userId, noteId, tagText) => {
+	return new Promise((resolve, reject) => {
+
+		//Lookup tag
+		Tag.lookup(tagText)
+		.then( lookup => {
+			
+			//Tag does not exist, insert new tag, then associate it with a note
+			if(lookup.length == 0){
+				//Insert new tag
+				Tag.add(tagText)
+				.then( newTagId => {
+					Tag.associateWithNote(userId, noteId, newTagId)
+					.then( result => {
+						resolve(result)
+					})
+				})
+			}
+
+			//Tag already exists, associate it with a note
+			if(lookup.length > 0){
+				Tag.associateWithNote(userId, noteId, lookup[0].id)
+				.then( result => {
+					resolve(result)
+				})
+			}
+
+		})
+	})
+}
+
+Tag.associateWithNote = (userId, noteId, tagId) => {
+	return new Promise((resolve, reject) => {
+
+		//Check if tag already exists on note before adding note
+		db.promise()
+		.query(`SELECT * FROM notes_tags WHERE note_id = ? AND tag_id = ? AND user_id = ?;`, [noteId, tagId, userId])
+		.then((rows, fields) => {
+
+			//If matching tag does not exist on note
+			if(rows[0].length == 0){
+
+				//Add tag to note
+				db.promise()
+				.query(`INSERT INTO notes_tags (note_id, tag_id, user_id) VALUES (?,?,?);`, [noteId, tagId, userId])
+				.then((rows, fields) => {
+					resolve(rows[0]) 
+				})
+				.catch(console.log)
+			} else {
+
+				reject('Error: Tag already exists on note.')
+			}
+		})
+		.catch(console.log)
+	})
+}
+
+Tag.add = (tagText) => {
+	return new Promise((resolve, reject) => {
+		db.promise()
+		.query(`INSERT INTO tags (text, hash) VALUES (?,?);`, [tagText,0])
+		.then((rows, fields) => {
+			resolve(rows[0].insertId) //Return new ID
+		})
+		.catch(console.log)
+	})
+}
+
+Tag.get = (userId, noteId) => {
+	return new Promise((resolve, reject) => {
+		db.promise()
+		.query(`SELECT notes_tags.id, tags.text FROM notes_tags
+				JOIN tags ON (tags.id = notes_tags.tag_id)
+				WHERE user_id = ? AND note_id = ?;`, [userId, noteId])
+		.then((rows, fields) => {
+			resolve(rows[0]) //Return all tags found by query
+		})
+		.catch(console.log)
+	})
+}
+
+Tag.string = (userId, noteId) => {
+	return new Promise((resolve, reject) => {
+		Tag.get(userId, noteId).then(tagArray => {
+
+			let tagString = ''
+			tagArray.forEach( (tag, i) => {
+				if(i > 0){ tagString += ',' }
+				tagString += tag.text
+			})
+			//Output comma delimited list of tag strings
+			resolve(tagString)
+
+		})
+	})
+}
+
+Tag.lookup = (tagText) => {
+	return new Promise((resolve, reject) => {
+		db.promise()
+		.query(`SELECT * FROM tags WHERE text = ?;`, [tagText])
+		.then((rows, fields) => {
+			resolve(rows[0]) //Return all tags found by query
+		})
+		.catch(console.log)
+	})
+}
+
+//Suggest note tags - don't suggest tags already on note
+Tag.suggest = (userId, noteId, tagText) => {
+
+	tagText += '%'
+
+	return new Promise((resolve, reject) => {
+		db.promise()
+		.query(`SELECT text FROM notes_tags 
+				JOIN tags ON notes_tags.tag_id = tags.id
+				WHERE notes_tags.user_id = ?
+				AND tags.text LIKE ?
+				AND notes_tags.tag_id NOT IN (
+					SELECT notes_tags.tag_id FROM notes_tags WHERE notes_tags.note_id = ?
+				)
+				GROUP BY text
+				LIMIT 6;`, [userId, tagText, noteId])
+		.then((rows, fields) => {
+			resolve(rows[0]) //Return new ID
+		})
+		.catch(console.log)
+	})
+}