Added find, filter and error messages.

README.md

@@ -78,4 +78,20 @@ const dbcopycat = require('dbcopycat');
 dbcopycat.update(arrayName, data);
 ```
 
+## :blue_square: filter(arrayName, condition)
+Filters data by condition
 
+```
+const dbcopycat = require('dbcopycat');
+
+dbcopycat.filter("arrayName", x => x.id == 1)
+```
+
+## :blue_square: find(arrayName, condition)
+Returns a single data suitable for the condition
+
+```
+const dbcopycat = require('dbcopycat');
+
+dbcopycat.find("arrayName", x => x.categoryid == 1)
+```

helpers/dataControl.js

@@ -0,0 +1,18 @@
+const fs = require('fs');
+
+function statPath(path) {
+    try {
+        return fs.statSync(path);
+    } catch (ex) { }
+    return false;
+}
+
+function dataControl() {
+    var exist = statPath('./data/db.json');
+    if (exist && exist.isFile()) {
+        return true
+    } else {
+        return false
+    }
+}
+module.exports = dataControl;

helpers/dataFilter.js

@@ -0,0 +1,8 @@
+const getAllData = require("./getAllData")
+
+function dataFilter(arrayName, condition) {
+    const dataAll = getAllData();
+    return dataAll[arrayName].filter(condition)
+}
+
+module.exports = dataFilter;

helpers/dataFind.js

@@ -0,0 +1,8 @@
+const getAllData = require("./getAllData")
+
+function dataFind(arrayName, condition) {
+    const dataAll = getAllData();
+    return dataAll[arrayName].find(condition)
+}
+
+module.exports = dataFind;

helpers/initdb.js

@@ -1,27 +1,31 @@
 const fs = require('fs');
-const path = require('path');
+const log = require('../utils/log');
+const dataControl = require('./dataControl');
 
 function init() {
-    fs.mkdir('data', function (error) {
-        if (error) console.log(error);
-        console.log('Data folder created.');
-    });
+    if (!dataControl()) {
+        fs.mkdir('data', function (error) {
+            console.log('Data folder created.');
+        });
 
-    fs.writeFile('data/db.json', `{
-    "products": [
-        {
-            "id": 1,
-            "categoryId": 2,
-            "productName": "Chai",
-            "quantityPerUnit": "48 - 6 oz jars",
-            "unitPrice": "30",
-            "unitsInStock": 53
-        }
-    ]
-}`, function (error) {
-        if (error) console.log(error);
-        console.log("db.json created.");
-    })
-}
+        fs.writeFile('data/db.json', `{
+        "products": [
+            {
+                "id": 1,
+                "categoryId": 2,
+                "productName": "Chai",
+                "quantityPerUnit": "48 - 6 oz jars",
+                "unitPrice": "30",
+                "unitsInStock": 53
+            }
+        ]
+    }`, function (error) {
+            if (error) console.log(error);
+            console.log("db.json created.");
+        })
+    } else {
+        log("Data already exists", "Error", "error")
+    }
 
+}
 module.exports = init;

local.js

@@ -12,9 +12,13 @@ const getById = require('./operations/getById');
 const add = require('./operations/add');
 const deleteById = require('./operations/deleteById');
 const update = require('./operations/update');
+const filter = require('./operations/filter');
+const find = require('./operations/filter');
 
 module.exports.getAll = getAll;
 module.exports.getById = getById;
 module.exports.add = add;
 module.exports.deleteById = deleteById;
-module.exports.update = update;
+module.exports.update = update;
+module.exports.filter = filter;
+module.exports.find = find;

operations/filter.js

@@ -0,0 +1,7 @@
+const dataFilter = require('../helpers/dataFilter');
+
+function filter(arrayName, condition) {
+    return dataFilter(arrayName, condition);
+}
+
+module.exports = filter;

operations/find.js

@@ -0,0 +1,7 @@
+const dataFind = require('../helpers/dataFind');
+
+function find(arrayName, condition) {
+    return dataFind(arrayName, condition);
+}
+
+module.exports = find;

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "dbcopycat",
-	"version": "0.2.1",
+	"version": "0.3.2",
 	"description": "A JSON Database that saves your Json data in a file and makes it easy for you to perform CRUD operations.",
 	"main": "local.js",
 	"license": "ISC",

utils/log.js

@@ -1,12 +1,10 @@
 const alert = require('cli-alerts');
 
-module.exports = info => {
+module.exports = (msg, title, type, info) => {
 	alert({
-		type: `warning`,
-		name: `DEBUG LOG`,
-		msg: ``
+		type: type,
+		name: title,
+		msg: msg
 	});
-
-	console.log(info);
-	console.log();
+	if (info) console.log(info);
 };