Using dynamic search parameters with Sequelize.js

I'm trying to follow the Sequelize tutorial on their website.

I have reached the following line of code.

Project.findAll({where: ["id > ?", 25]}).success(function(projects) {
  // projects will be an array of Projects having a greater id than 25
})

If I tweak it slightly as follows

Project.findAll({where: ["title like '%awe%'"]}).success(function(projects) {
    for (var i=0; i<projects.length; i++) {
        console.log(projects[i].title + " " + projects[i].description);
    }
});

everything works fine. However when I try to make the search parameter dynamic as follows

Project.findAll({where: ["title like '%?%'", 'awe']}).success(function(projects) {
    for (var i=0; i<projects.length; i++) {
        console.log(projects[i].title + " " + projects[i].description);
    }
});

It no longer returns any results. How can I fix this?

I think you would do that like this:

where: ["title like ?", '%' + 'awe' + '%']

So if you were doing this with an actual variable you'd use:

Project.findAll({where: ["title like ?", '%' + x + '%']}).success(function(projects) {
    for (var i=0; i<projects.length; i++) {
        console.log(projects[i].title + " " + projects[i].description);
    }
});

javascript, However when I try to make the search parameter dynamic as follows. Project.​findAll({where: ["title like '%?%'", 'awe']}).success(function(projects) { for (var i=0;  Home » Nodejs » Using dynamic search parameters with Sequelize.js Using dynamic search parameters with Sequelize.js Posted by: admin November 27, 2017 Leave a comment

Now on Sequelize you can try this

{ where: { columnName: { $like: '%awe%' } } }

See http://docs.sequelizejs.com/en/latest/docs/querying/#operators for updated syntax

Using dynamic search parameters with Sequelize.js, Using dynamic search parameters with Sequelize.js. Posted by: admin November 27, 2017 Leave a comment. Questions: I'm trying to follow the Sequelize  Javier Cornejo Alfaro. Apparently, this user prefers to keep an air of mystery about them. 5. 25 Using dynamic search parameters with Sequelize.js Aug 26 '14.

Please try this code

const Sequelize = require('sequelize');
const Op = Sequelize.Op;
{ where: { columnName: { [Op.like]: '%awe%' } } }

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I would do it in this way:

Project.findAll({where: {title: {like: '%' + x + '%'}, id: {gt: 10}}).success(function(projects) {
  for (var i=0; i<projects.length; i++) {
    console.log(projects[i].title + " " + projects[i].description);
  }
});

In this way you can have nicely more WHERE clausas

Raw Queries, I recently built a MySQL database using the Sequelize ORM. Some of the querying functions I needed to Tagged with javascript, sql. With Sequelize, you can query for specific field names dynamically. For example, if a  Learn how to use ‘Dynamic Prefill Link’ of Formstack in 4 easy steps! 1. Introduction Short introduction of FormStack and its uses. 2. Need of Dynamic Prefill Link We can display the url of

It might be cleaner to leverage the Sequelize.Utils.format function

A deeper dive into Sequelize queries: dynamic field names, the Op , In a node.js + postgresql environment, with sequelize as the orm, what is the best way to go about building a "dynamic" query? Imagine the  A convenience class holding commonly used data types. The data types are used when defining a new model using Sequelize.define, like this: sequelize.define('model', { column: DataTypes.INTEGER }) When defining a model you can just as easily pass a string as type, but often using the types defined here is beneficial.

conditional columns, joins, and where clause parameters · Issue , Replacements in a query can be done in two different ways, either using named parameters (starting with : ), or unnamed, represented by a ? . Replacements are​  Except replacements are escaped and inserted into the query by sequelize before the query is sent to the database, while bind parameters are sent to the database outside the SQL query text. A query can have either bind parameters or replacements. Bind parameters are referred to by either $1, $2, (numeric) or $key (alpha-numeric).

Raw queries, To select only some attributes, you can use the attributes option. or doing bulk updates/destroys you can pass a where object to filter the query. valid direction parameters ['username', 'DESC'], // Will order by max(age) sequelize.fn('max',  Creates an object representing a database function. This can be used in search queries, both in where and order parts, and as default values in column definitions. If you want to refer to columns in your function, you should use sequelize.col, so that the columns are properly interpreted as columns and not a strings.

Querying, This also has the benefit of allowing you to dynamically create your search. How? Well, your search needs an object with certain key-value pairs. Give it one. You can decide what parameters to set throughout your program. Let's say How to log a Node.js API in an Express.js app with Mongoose plugins. Also, if you want to use Sequelize to connect to a database that is already filled with tables and data, that works as well! Sequelize has got you covered in both cases. Logging. By default, Sequelize will log to console every SQL query it performs.

Comments
  • I found the wording of your question a little confusing, so I edited it. I hope I understood correctly, please feel free to change it back if you think I screwed up.
  • Good simplistic answer. Quick note for new users, title is the name of the column you are wanting to find the match against.
  • Thanks @JMM I fixed it ;)