grocery crud JS parser problem with russian letters

Good afternoon!

I'm very sorry for the bad translation from Google.

Please help me solve the problem.

I just started using grocery crud.

Version: grocery crud enterprise v2.3.5 without composer

DB: MySQL

DB and Tables Collation: utf8 - default collation

Charset: utf8

Faced the following problem, on small tables everything works well, but with some I have problems.

When I try to work with a problem table, I get an error in the modal window:

"We can't process the response of the server. This is all we know about it:

Summary:parsererror

Error:SyntaxError: Unexpected end of JSON input"

Having removed almost all the data from the database table, the error was gone, everything worked, so I came to the conclusion that the problem is in the data table.

Gradually deleting data, line by line, column by column, I determined the problem data.

In my table, I found two data fields, one type VARCHAR (100), the second type LONGTEXT, both fields contained the same text: 'Ð¢ÐµÐ¿Ð¾Ð³Ð°ÐµÐ²Ð° Ð¡Ð²ÐµÑ‚Ð»Ð°Ð½Ð° Ð’Ð»Ð°Ð´Ð¸Ð¼Ð¸Ñ€Ð¾Ð²Ð½Ð°' (without quotes).

I have identified several options when there is no error and when there is an error, but I did not find the law, as I could not solve the problem:

'Ð¢ÐµÐ¿Ð¾Ð³Ð°ÐµÐ²Ð° Ð¡Ð²ÐµÑ‚Ð»Ð°Ð½Ð° Ð’Ð»Ð°Ð´Ð¸Ð¼Ð¸' - WORKS (26 characters, excluding spaces)

If I add any number of digits to the string, then everything works. Also works if I add Latin characters. With Russian letters, the problem is if their number is more than 26 characters and they are separated by delimiters.

I just can not determine the relationship, please help me solve the problem. I think the problem is somewhere in JS.

Due to the fact that the support service is ready to answer me only in a week, I had to look for the solution of the problem myself.

I found the cause of the problem!

StateAbstract.php

Line: 222

$columnValue = $char_limiter > 0 && (strlen($columnValue) > $char_limiter) ? substr($columnValue, 0 , $char_limiter - 1) . '...' : $columnValue;

This code shortens the column text to the desired length. As a result of this code, the string

turns into

Because of this, an error occurs!

The problem is related to the incorrect operation of method substr() and Russian symbols.

Solution:

Replace string

$columnValue = $char_limiter > 0 && (strlen($columnValue) > $char_limiter) ? substr($columnValue, 0 , $char_limiter - 1) . '...' : $columnValue;

with

$columnValue = $char_limiter > 0 && (strlen($columnValue) > $char_limiter) ? mb_substr($columnValue, 0 , $char_limiter - 1,'UTF-8') . '...' : $columnValue;

Now as a result of new code, the string

turns into

The error does not appear, the problem is solved.

Thanks to all!

grocery crud JS parser problem with russian letters

Mans

Mans