Add `Orientation` support in collapse mode

[zhiburt]

We have a general support of it but not in a collapse mode. It's not an easy task to do, but its scope is limited to 1 function.

The idea that we can run this with .collapse() and it will have an affect.

https://github.com/zhiburt/tabled/blob/fa313912a1da2fda40733f2db47371e1e84e2776/json_to_table/tests/test_orientation_modes.rs#L162-L178

[gautamprikshit1]

Any help on how to implement this?

[zhiburt]

Hi @gautamprikshit1

The description is a bit misleading here (sorry).

About Orientation

We have a Orientation abstraction which can be used to tweak a print behavior. Look how it works generally.

We have this json

{
        "key1": "value1",
        "key2": {
            "key1": 123,
            "key2": [1, 2, 3, 4, 5],
        },
        "key3": [
            {"key": 123.3},
            2,
            "asd"
        ]
}

We can tweak Orientation via set_array_mode and set_object_mode.

    let mut table = json_to_table(&json);
    table
        .set_array_mode(Orientation::Horizontal)
        .set_object_mode(Orientation::Horizontal);

vertical orientation (default).

horizontal orientation

+------+-----------------------+ | key1 | value1 | +------+-----------------------+ | key2 | +------+---------+ | | | | key1 | 123 | | | | +------+---------+ | | | | key2 | +-----+ | | | | | | | 1 | | | | | | | +-----+ | | | | | | | 2 | | | | | | | +-----+ | | | | | | | 3 | | | | | | | +-----+ | | | | | | | 4 | | | | | | | +-----+ | | | | | | | 5 | | | | | | | +-----+ | | | | +------+---------+ | +------+-----------------------+ | key3 | +-------------------+ | | | | +-----+---------+ | | | | | | key | 123.3 | | | | | | +-----+---------+ | | | | +-------------------+ | | | | 2 | | | | +-------------------+ | | | | asd | | | | +-------------------+ | +------+-----------------------+

+----------+---------------------------------------------+-------------------------------+ | key1 | key2 | key3 | +----------+---------------------------------------------+-------------------------------+ | value1 | +-------+---------------------------------+ | +-------------+-----+-------+ | | | | key1 | key2 | | | +---------+ | 2 | asd | | | | +-------+---------------------------------+ | | | key | | | | | | | | 123 | +-----+-----+-----+-----+-----+ | | | +---------+ | | | | | | | | | 1 | 2 | 3 | 4 | 5 | | | | | 123.3 | | | | | | | | | +-----+-----+-----+-----+-----+ | | | +---------+ | | | | | | +-------+---------------------------------+ | +-------------+-----+-------+ | +----------+---------------------------------------------+-------------------------------+

But unfortunately this doesn't work when we set collapse view.

Collapse

.collapse method squashes tables together so you'd get this table for the json above.

    let mut table = json_to_table(&json);
    table.collapse();

+------+-------------+
| key1 | value1      |
+------+------+------+
| key2 | key1 | 123  |
|      +------+------+
|      | key2 | 1    |
|      |      +------+
|      |      | 2    |
|      |      +------+
|      |      | 3    |
|      |      +------+
|      |      | 4    |
|      |      +------+
|      |      | 5    |
+------+-----++------+
| key3 | key | 123.3 |
|      +-----+-------+
|      | 2           |
|      +-------------+
|      | asd         |
+------+-------------+

But we CAN'T yet set a orientation when being in this view. The issue is to add a support for it.

So it would look something like this.

    let mut table = json_to_table(&json);
    table
        .set_array_mode(Orientation::Horizontal)
        .set_object_mode(Orientation::Horizontal)
        .collapse();

+-----------+--------------------------+-----------------+
|    key1   |             key2         |   key3          |
+-----------+------+-------------------+-------+---+-----+
|  value1   | key1 |        key2       |   key | 2 | asd |
|           +------+---+---+---+---+---+-------+   |     |
|           | 123  | 1 | 2 | 3 | 4 | 5 | 123.3 |   |     |
+-----------+------+---+---+---+---+---+-------+---+-----+

[zhiburt]

From code perspective you'd need to create an analogues function to json_to_table_r to print a horizontal mode for a serde_json::Value.

https://github.com/zhiburt/tabled/blob/64d68081580e05e7efe25945daa431a691cf2cda/json_to_table/src/table.rs#L198-L202

PS: To be honest even though it requires to create only 1 function is PRETTY messy thing. (I mean it's relatively complex function)

[zhiburt]

#240 for example much easier to do.