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README.md

Create a Sails.js (node.js) App with basic CRUD features using MongoDb Hi guys,

        Here im gonna give you some working sample codes for performing basic operations(CRUD) in sails.js(node.js).

Step1:Create a new sails.js app

  <code>
   $ sails new myapp1
  </code>

Step2:Connect your app with MongoDb Update /config/adapters.js

  <code>
   module.exports.adapters = {

    // If you leave the adapter config unspecified 
    // in a model definition, 'default' will be used.
    'default': 'mongo',
    mongo: {
      module   : 'sails-mongo',
      url      : 'mongodb://localhost:27017/mydb1'
    }

  };
  </code>

Step3:Create a new data model & its controller $ sails create model person $ sails create controller person

CREATE:
Step4:Add a new action "create" inside api/controllers/PersonController.js

   <code>
     module.exports = {

create: function (req, res) {

		    if(req.method=="POST"&&req.param("Person",null)!=null)
		    {
		      
		      Person.create(req.param("Person")).done(function(err,model){
			
			  
			  // Error handling
			    if (err) {
			  
				res.send("Error:Sorry!Something went Wrong");

			    }else {
			        res.send("Successfully Created!");
				//res.redirect( 'person/view/'+model.id);
			      
			    }
			
			
		      });
		    
		    }
		    else
		    {
		      
		      res.render( 'person/create');
		    }

   
       }
       
  }        
   </code>

Step5:Add a create form under views/person/create.ejs List

Person Create form

<tr><td>Name<td><input type="text" name="Person[name]"><br/>
<tr><td>Age<td><input type="text" name="Person[age]">
<tr ><td><td><input type="submit" value="ADD">
</form>

   </code>

READ: Step6:Add an index action in PersonController.js which can be used to list all created documents.

   <code>
      index: function (req, res) {

       Person.find().exec(function(err, persons) {
	  
	  res.render( 'person/index',{'persons':persons});
	  return;
	 
	});

  }
   </code>

Step7:Add an index.ejs view file for action index /views/person/index.ejs +Create

    <% persons.forEach( function( model ){ %>
  1. <%= model.name %>(delete|Update|view)
  2. <% }); %>
Step8:Add a view action under PersonController.js view: function (req, res) {

	      var id=req.param("id",null);
	      
	      Person.findOne(id).done(function(err,model){
		
		res.render( 'person/view',{'model':model}); 	
	      
	      });
	      
	 
	  }
	  
     </code>

Step9:Add view file for action "view" under /views/person/view.ejs +Create|List|Update

      <h2>View <%=model.name%></h2>
      <ul>
	<li>Name:<%=model.name %></li>
	<li>Age:<%=model.age %></li>
      </ul>
     </code>

UPDATE:

Step10: Add a new action "update" inside api/controllers/PersonController.js

      <code>
          update: function (req, res) {

                   var id=req.param("id",null);

	        Person.findOne(id).done(function(err, model) {
		
		      if(req.method=="POST"&&req.param("Person",null)!=null)
			{
			    
			    var p=req.param("Person",null);
			      
			
			  model.name=p.name;
			  model.age=p.age;
			  
			  model.save(function(err){
			    
				if (err) {
			      
				    res.send("Error");

				}else {
				  
				    res.redirect( 'person/view/'+model.id);
				  
				}
			    
			    
			  });
			
			}
			else
			{
			  
			  res.render( 'person/update',{'model':model});
			}
		    

	      });
  
   
              }
      </code>

Step11:Add an update form under views/person/update.ejs List

Person #<%=model.name %> Update form

    <tr><td>Name<td><input type="text" name="Person[name]" value="<%=model.name %>"><br/>
    <tr><td>Age<td><input type="text" name="Person[age]" value="<%=model.age %>">
    <tr ><td><td><input type="submit" value="SAVE">
    </form>
     </code>

DELETE

Step12: Add a delete/destroy action under api/controllers/PersonController.js delete: function (req, res) {

	    var id=req.param("id",null);
	      
	    Person.findOne(id).done(function(err, user) {

		user.destroy(function(err) {
		    
		  res.redirect( 'person/index/');
		    
		  // record has been removed
		});

	      });
	
	}
      </code>		

--You are done..Enjoy Coding with Sails.js Sirin K Nintriva

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