如何在Laravel雄辩的ORM中正确使用orderByRaw？

Question

So I am trying a few complex ordering filters in Eloquent. So I have a patent_text table. Here is the migration table for it:

        Schema::create('patent_text', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->bigInteger('patent_id')->unsigned()->index('patent_id');
            $table->enum('text_type', array('ICLAIM', 'CLAIM', 'DESCRIPTION', 'ABSTRACT', 'TITLE'))->nullable();
            $table->enum('type', array('ORIGINAL', 'MACHINE'))->nullable();
            $table->string('language', 2)->nullable();
            $table->longText('text')->nullable();
            $table->timestamps();

            $table->foreign('patent_id',
                'patent_text_ibfk_1')->references('id')->on('patent')->onUpdate('RESTRICT')->onDelete('CASCADE');

        });

So now I am trying to order by text_type and I want to have ORIGINAL first and then MACHINE but that is easy.

I just do $this->texts->orderBy('text_type'); and it works just fine. The ORIGINAL texts are put first and then the other ones.

But I also want to order by the language field. I want en to be on top and then others. So I tried orderByRaw like so:

$this->texts()->orderBy('text_type')->orderByRaw("FIELD(language , 'en', 'se') ASC")->get()

But it did not work and I cannot figure out what I am missing.

Answer 1

您可以与CASE一起使用orderByRaw而不是FIELD例如

->orderByRaw("CASE WHEN language = 'en' THEN 0 WHEN language = 'se' THEN 0 ELSE 1 END")