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Product Catalog Schema design


Product Catalog Schema design

By : user3861813
Date : November 21 2020, 07:01 PM
like below fixes the issue I've worked with a similar problem only with legal contracts in a multi-tenant application instead of products. Some attributes are common to all and some are arbitrary attributes meant for tracking.
I've said many times that EAVs are like drugs: in small quantities and used in the right circumstances, they can beneficial; too much will kill you. Generally, the rule must be that no query along the lines of "Where Attribute = 'Foo'" or "Where AttributeValue = 'Bar'" can be allowed to be written. No report, no display; nothing. Any use of the EAV must be entirely dynamic and not depend on the existence of a specific attribute row value. In this light, the EAV acts like a bag of data. It can be spit out in a list on a report. You can allow users to choose attributes they wish to see on a report. What you cannot do is filter for specific EAV values. I've heard people use columns with XML data to solve the same problem. The moment someone does want to filter for a specific attribute, that is the trigger to make that attribute a first class attribute as a column.
code :


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Scalable database design for general catalog of ítems that mixes with particular catalog for each user?

Scalable database design for general catalog of ítems that mixes with particular catalog for each user?


By : Illuminati
Date : March 29 2020, 07:55 AM
wish help you to fix your issue The only real alternative to copying everything is to model a list of changes to the main catalog. So if a user deletes something from the catalog you would store this in a record indicating "just like the main catalog except Fred has deleted Threat 3". If they insert a new relationship, you would need to store that.
Querying this model will be quite difficult because you will need to select catalog records where not exists a delete from the current user unioned with any inserts from the current user. Depending on your database, you might be able to wrap this in a view.
Entity Framework Code First - Database schema for a catalog with product and product options

Entity Framework Code First - Database schema for a catalog with product and product options


By : Arthas
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Keep it simple!
Modeling is a skill. It's about observing and filtering. Even in a relatively simple business like a Take-away there is a lot of noise and if you manage to filter the noise and keep the essence your entity model will become both robust and flexible. First focus on the absolute minimum. Let me try to show you how this could work in your case.
How can i design Schema for below product using mongoose?

How can i design Schema for below product using mongoose?


By : Iklvya Nagpal
Date : March 29 2020, 07:55 AM
around this issue
code :
//Schema Defination and model.js
var ProductSchema = new mongoose.Schema({
    name:String,
    category:String,
    subcategory:[{
        type:String,
        model:[{
            type:String,
            colour:[{
                name:String,
                image:String
            }],
            size:[{
                val:Number,
                price:Number
            }]
        }]
    }],
    description:String,
    created_at:{ type: Date },
    updated_at:{ type: Date, default: Date.now },
    updated:{type: Date, default: Date.now}
}, { versionKey: false },{strict: false});
export default mongoose.model('Product', ProductSchema);
//Static Storing into Database
var ProductSchema = require('path/to/ProductSchema.js');
app.post('/Store_Product_Details',function (req,res) {
    var Name = 'Mens Formal Shirts';
        var Category = 'Shirts';
    var SubCategory = [{
        type: "slimline",
        model: [{
            "type": "twill",
            "colour": [{
                "name": "red",
                "image": "red.jpg"
            },
                {
                    "name": "white",
                    "image": "white.jpg"
                }
            ],
            "size": [{
                "val": 32,
                "price": "1000"
            },
                {
                    "val": 24,
                    "price": "1244"
                }
            ]
        }, {
            "type": "denim",
            "colour": [{
                "name": "red",
                "image": "red.jpg"
            },
                {
                    "name": "white",
                    "image": "white.jpg"
                }
            ],
            "size": [{
                "val": 32,
                "price": 1000
            },
                {
                    "val": 24,
                    "price": 1244
                }
            ]
        }

        ]
    },{
        type: "superslim",
        model: [{
            "type": "denim",
            "colour": [{
                "name": "red",
                "image": "red.jpg"
            },{
                "name": "white",
                "image": "white.jpg"
            }
            ],
            "size": [{
                "val": 32,
                "price": 1000
            },{
                "val": 24,
                "price": 1244
            }
            ]
        },{
            "type": "dobby",
            "colour": [{
                "name": "red",
                "image": "red.jpg"
            },
                {
                    "name": "white",
                    "image": "white.jpg"
                }
            ],
            "size": [{
                "val": 32,
                "price": 1000
            },
                {
                    "val": 24,
                    "price": 1244
                }
            ]
        }

        ]
    }
    ]
    var Description = 'Mens Formal Wear';
    var date = new Date();
    var ProductData = new ProductSchema({
        name:Name,
        category:Category,
        subcategory:SubCategory,
        description:Description,
        created_at:date
    })
    ProductData.save(function (err,Status) {
        if(!err){
            res.send("Product Stored Successfully");
        }else {
            res.send("Oops! Something went Wrong");
        }
    })
});
//Dynamically Storing or from Controller
var ProductSchema = require('path/to/ProductSchema.js');
app.post('/Store_Product_Details',function (req,res) {
    var Name = req.body.Name;
    var Category = req.body.Category;
    var SubCategory = req.body.SubCategory;
    var Description = req.body.Description;
    var date = new Date();
    var ProductData = new ProductSchema({
        name:Name,
        category:Category,
        subcategory:SubCategory,
        description:Description,
        created_at:date
    })
    ProductData.save(function (err,Status) {
        if(!err){
            res.send("Product Stored Successfully");
        }else {
            res.send("Oops! Something went Wrong");
        }
    })
});
MySql: Loading product catalog : An error was encountered loading the product catalog on windows 7

MySql: Loading product catalog : An error was encountered loading the product catalog on windows 7


By : TDWD
Date : March 29 2020, 07:55 AM
I hope this helps . First, uninstall MySQL from Control Panel. Now go to the C drive and show all hidden files. Now go to the Program Files and delete MySQL directory from there, and do the same thing in Program Data and Program File(x86). Then try again to install MySQL. it will not show you this message again. It is better to do this method by turn off your internet on the system.
It worked for me... Good Luck!
Deadlocks when importing catalog into Microsoft Commerce Server product catalog

Deadlocks when importing catalog into Microsoft Commerce Server product catalog


By : Venkata Lakshmi Redd
Date : March 29 2020, 07:55 AM
Does that help There is a Microsoft hotfix for Commerce Server 2007 and 2009 (Note: 2009 R2 includes this hotfix) that is intended to correct an issue with deadlocks caused by catalog import operations:
FIX: A deadlock error may occur when you use Commerce Server Staging or BizTalk Adapter for Commerce Server Catalog to try to import catalog data in Commerce Server 2007 or in Commerce Server 2009
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