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Building MongoDB query with conditions


Building MongoDB query with conditions

By : user3100583
Date : January 12 2021, 09:11 PM
help you fix your problem Since you are writing Javascript, you can create a "base" update object, and then add the $push property if you need:
code :
const update = { 
    $inc: { countPublishedPoems: 1 }
}

if (!profile.languages || (profile.languages && !profile.languages.find(l => l === languageId))) {
    update["$push"] = { languages: languageId };
}

const profileUpdate = await 
Profiles.rawCollection().update(
    { userId: this.userId }, 
    update
);


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Rails - Building Conditions for Use in a Query

Rails - Building Conditions for Use in a Query


By : user3532960
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I usually like to build a conditions hash like this below: , I am assuming you are using Rails 2.3.x and year is a date column.
code :
conditions = {}
conditions[:color] = "black"
conditions[:doors] = 4
conditions[:type] = "sedan"
# create a date range
conditions[:year] = (Date.parse("2011-01-01")...Date.parse("2011-02-01"))

Car.all(:conditions => conditions)
Hibernate query building based on conditions

Hibernate query building based on conditions


By : Gustavo
Date : March 29 2020, 07:55 AM
around this issue Try looking at Criteria Query
code :
Criteria crit = sess.createCriteria(Product.class);
if (productNameCriteria.equalsIgnoreCase("IS"))
    crit.add( Restrictions.eq("productName", productName);
else if (productNameCriteria.equalsIgnoreCase("BEGINS WITH"))
    crit.add( Restrictions.like("productName", productName + "%")
// etc
StringBuilder sb = new StringBuilder();
sb.append("select count(*) from Product p where ");
if (productNameCriteria.equalsIgnoreCase("IS"))
    sb.append("p.productName = '").append(productName).append("'");
// etc
String query = sb.toString();
"select count(*) from Product p where p.productName = :productName"
"select count(*) from Product p where p.productName = ?"
Passing query conditions to db.collection.find in Node.js/Mongodb where the query string is generated

Passing query conditions to db.collection.find in Node.js/Mongodb where the query string is generated


By : gistad
Date : March 29 2020, 07:55 AM
like below fixes the issue You're ultimately generating a query object, not a string, so build the query object up programmatically:
code :
var query = {};
var field = 'data.XYZ';
var operator = {};
operator['$lt'] = 15;
query[field] = operator;
db.event.find(query);
var qstr1="{ \"data.XYZ\": {\"$lt\":15} }";
var query = JSON.parse(qstr1);
MySql syntaxErrorException when manually building SQL query with AND or OR conditions

MySql syntaxErrorException when manually building SQL query with AND or OR conditions


By : christianready
Date : March 29 2020, 07:55 AM
should help you out I am developing a simple web appilcation using JSP,Servlets and Mysql. I have table called annotations in Mysql database. I would like fetch only the records based on 'OR' and 'AND' from Mysql. But unfortunately I am getting a jdbc-Mysql Synatax exception. I'm composing the SQL query as below: , remove commas from where conditions
code :
query="select * from annotations where ID='"+Transcript_ID+"' "+Condition_1+" Gene_Symbol='"+Gene_Symbol+"' "+Condition_2+" "+ "Molecular_Function='"+Molecular_Function+"' "+Condition_3+" Biological_Process='"+Biological_Process+"'";
Building query to filter on OR conditions

Building query to filter on OR conditions


By : Gaby
Date : March 29 2020, 07:55 AM
Hope that helps Based on your code you can get the themes ids into array and pass it to Contains extention
code :
IQueryable<News> news = context.News;
var themesIds = themes.Select(t=>t.Id).ToArray();

news = news.Where(n =>  n.Post.Themes.Any(t=>themesIds.Contains(t.Id))); 

return news.ToList();
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