Comparison like/notlike support

[Fedik]

Support Comparison::LIKE and Comparison::NOTLIKE additionally to doctrine/collections#50

as alternative for #1150

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[stof]

The usage of the constants to define the array would bump the requirement on doctrine/collections. Couldn't you use the value of the constant instead (eventually putting a comment with the constant in it), so that it works fine for older versions of doctrine/collections too (people would oviously not be passing the LIKE operator if they don't have it, but it would not break things for other operators)

[stof]

another thing which is necessary (but probably as a separate PR) is fixing the SQL conversion of the CONTAINS operator (it needs to escape the placeholders in the value)

[Fedik]

sorry, I not very understand your first suggestion

about second, I think it out of scope for current pull,
fix the CONTAINS better separately, also I not sure how to do it .. first thinking is use preg_replace, but then better stay as is 😄

[stof]

My first suggestion is to write the code this way:

    'LIKE' => 'LIKE %s', // Comparison::LIKE
    'NOTLIKE' => 'NOT LIKE %s', // Comparison::NOT_LIKE

This way, it will still be possible to use the ORM with older versions of Doctrine Collections which does not have these constants.

For CONTAINS, the fix is to escape placeholders in the value when building the SQL parameters, so that a % in the value matches only a %