Eloquent whereRaw is not working with bindings

问题

I have a json column in my database with french characters. So when I use:

App\Job::where('name->fr', 'like', '%Fune%')->count();

It is not finding results for jobs that has an accent in the name like Funéraire. I can accomplish what I want by adding a collate in the query using the whereRaw:

App\Job::whereRaw('json_unquote(json_extract(`name`, \'$."fr"\')) LIKE \'%Fune%\' collate utf8mb4_general_ci')->count();

However, when I use bindings in my whereRaw method:

App\Job::whereRaw('json_unquote(json_extract(`name`, \'$."fr"\')) LIKE ? collate utf8mb4_general_ci', ['%Fune%'])->count();

I am receiving a database error:

COLLATION 'utf8mb4_general_ci' is not valid for CHARACTER SET 'binary' (SQL: select count(*) from jobs where json_unquote(json_extract(name, '$."fr"')) LIKE %Fune% collate utf8mb4_general_ci)

Just wondering why it's not working when I'm passing it with bindings.

回答1:

You need to convert the binding to UTF-8:

App\Job::whereRaw(
    'json_unquote(json_extract(name, \'$."fr"\')) LIKE convert(? using utf8mb4)', 
    ['%Fune%']
)

回答2:

Chin.

if you have a JSON column the DB, you can directly fire a like query on the column as JSON is a string and like %text% search the text in the string.

you don't have to go through this much trouble for finding the alike name.

your query may somewhat look like this,

App\Job::where('name_of_column_of_json', 'like', '%Fune%')->count();

and you will get the desired output.

hit it and let us know, It works or not.

来源：https://stackoverflow.com/questions/58325280/eloquent-whereraw-is-not-working-with-bindings