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Stop Mongoose from creating _id property for sub-document array items
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It's simple, you can define this in the subschema :
var mongoose = require("mongoose");
var subSchema = mongoose.Schema({
//your subschema content
},{ _id : false });
var schema = mongoose.Schema({
// schema content
subSchemaCollectio...
Convert Django Model object to dict with all of the fields intact
...vert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False .
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Mapping many-to-many association table with extra column(s)
My database contains 3 tables:
User and Service entities have many-to-many relationship and are joined with the SERVICE_USER table as follows:
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Rails find record with zero has_many records associated [duplicate]
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Bah, found it here: https://stackoverflow.com/a/5570221/417872
City.includes(:photos).where(photos: { city_id: nil })
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How to annotate MYSQL autoincrement field with JPA annotations
Straight to the point, problem is saving the object Operator into MySQL DB.
Prior to save, I try to select from this table and it works, so is connection to db.
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get an element's id
....id property of the dom element, for example:
myDOMElement.id
Or, something like this:
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
alert(inputs[i].id);
}
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How to access the GET parameters after “?” in Express?
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So, after checking out the express reference, I found that req.query.color would return me the value I'm looking for.
req.params refers to items with a ':' in the URL and req.query refers to items associated with the '?'
Example:
GET /s...
How to select unique records by SQL
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With the distinct keyword with single and multiple column names, you get distinct records:
SELECT DISTINCT column 1, column 2, ...
FROM table_name;
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What can , and be used for?
Can anyone clarify how we can use in general, or a in real world example, this snippet?
2 Answers
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Rails :include vs. :joins
This is more of a "why do things work this way" question rather than a "I don't know how to do this" question...
8 Answers
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