fix: view fragments

[michalsn]

This PR fixes view fragments:

• handling multiple fragments with the same name
• fragments now respect sections

Closes #75

[neznaika0]

Why not self or static?

[michalsn]

I wanted to follow the current convention used in the original View class: https://github.com/codeigniter4/CodeIgniter4/blob/develop/system/View/View.php

[neznaika0]

Good. This is a notification in the IDE

[neznaika0]

Everything is fine for multi-fragments.
I'll check on the project later. I have a problem with flash messages working.

After the request, you need to return the template and toasts from the flash for it. There was no data before PR, we need to review it again.

Will the clarification of the work be indicated in the documentation?

Fragments, like sections, are complemented, that is, by specifying several fragments of the same name, they will be displayed as one. But the input data for them may differ depending on the order of output.

[neznaika0]

By adding a test for view(), the result is not obvious - the layout inside the section. Is this a problem with the parent view() ?

    public function testHugeViewFragment(): void
    {
        $result = view_fragment('huge/view', ['fragment_one']);

        $expected = <<<'EOD'
            Fragment one (from "huge/view")
            Fragment one (from "huge/include")
            Fragment one (from "huge/layout")

            EOD;

        $this->assertSame($expected, $result);
    }

    public function testHugeView(): void
    {
        $result = view('huge/view');

        $expected = <<<'EOD'


            View top

            Fragment one (from "huge/view")

            # include start in "huge/view"
            Layout top

            Section (from "huge/view")

            Include top

            Fragment one (from "huge/include")

            Include bottom

            Fragment one (from "huge/layout")

            Layout bottom
            # include end in "huge/view"

            View bottom

            EOD;

        $this->assertSame($expected, $result);
    }

[neznaika0]

Yes, bug framework

[michalsn]

If you place the content outside the section this is what you will get. I don't see any issues here.

[neznaika0]

Good. This is a notification in the IDE