Preface
How to implement pagination in GORM framework?
accomplish
In the Go GORM library, you can use Offset and Limit functions to implement pagination query, and use the Count function to get the total number of records. Here is an example:
The code is as follows:
var results []YourModel
var total int64
db := (/* Database connection parameters */)
// Calculate the total number of records and perform pagination query(&YourModel{}).Count(&total).Offset((pageNumber-1)*pageSize).Limit(pageSize).Find(&results)
In this example:
- YourModel should be replaced with the type of your data model.
- pageNumber is the page number you want to get (start from 1).
- pageSize is the number of records per page.
The Offset function sets the offset of the query result, and the Limit function sets the maximum number of query result.If you want to get the content of the pageNumber page, then you should skip the previous (pageNumber-1)*pageSize record, so the offset should be set to (pageNumber-1)*pageSize.
The Count function calculates the total number of records that meet the query conditions and stores the result in the total variable. Note that the call to the Count function should be before the Offset and Limit functions, because the Offset and Limit functions will affect the number of query results.
The Find function executes a query and fills the results into the results slice. You should handle all errors before and after calling these functions, such as checking whether the database connection is successful, checking whether the Count, Offset, Limit and Find functions return errors, etc.
Summarize
Use offset+limit to implement pagination in GORM framework
This is the article about the example code for implementing paging of GORM framework. For more related GORM paging content, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!