[META] Port all conditions to 8.x

While the Rules 8.x conditions API is not fully finished yet, we can already port conditions to the existing core API. We are working at https://github.com/fago/rules - where you can some help on how to contribute!

Conditions overview

Data (data.rules.inc)

• Data comparison (data_is) #2281079: Port "Data comparison (data_is)" condition to 8.x Assigned to diarmys
• Data value is empty (data_is_empty) #2281081: Port "Data value is empty (data_is_empty)" condition to 8.x
• List contains item (list_contains) #2281083: Port "List contains item (list_contains)" condition to 8.x
• List count comparison (list_count_is) #2281085: Port "List count comparison (list_count_is)" condition to 8.x
• Text comparison (text_matches) #2281087: Port "Text comparison (text_matches)" condition to 8.x Assigned to: tr

Entities (entity.rules.inc)

• Entity is new (entity_is_new) #2281089: Port "Entity is new (entity_is_new)" condition to 8.x
• Entity has field (entity_has_field) #2281107: Port "Entity has field (entity_has_field)" condition to 8.x Assigned to: lokapujya
• Entity is of type (entity_is_of_type) #2281109: Port "Entity is of type (entity_is_of_type)" condition to 8.x Assigned to: ndewhurst
• Entity is of bundle (entity_is_of_bundle) #2281111: Port "Entity is of bundle (entity_is_of_bundle)" condition to 8.x
• User has field access (entity_field_access) #2281113: Port "User has field access (entity_field_access)" condition to 8.x Assigned to: Torenware

Node (node.rules.inc)

• Content is of type (node_is_of_type) #2281117: Port "Content is of type (node_is_of_type)" condition to 8.x Assigned to: BigEngland
• Content is promoted to frontpage (node_is_promoted) #2269565: Port "Content is promoted" condition to 8.x
• Content is published (node_is_published) #2269569: Port the "Content is published" condition to 8.x Assigned to: paranojik
• Content is sticky (node_is_sticky) #2269571: Port "Content is sticky" condition to 8.x Assigned to: jzavrl

Path (path.rules.inc)

• Path has URL alias (path_has_alias) #2269575: Implement "Path has url alias" condition
• URL alias exists (path_alias_exists) #2269573: Port "Path alias exists" condition to 8.x Assigned to: bbujisic

User (user.rules.inc)

• User has role(s) (user_has_role) #2281119: Port "User has role(s) (user_has_role)" condition to 8.x
• User is blocked (user_is_blocked) #2269585: Port condition "User is blocked" to 8.x Assigned to: fago

PHP - Execute custom PHP code (php_eval) (is gone in Drupal 8: #1203886: Remove the PHP module from Drupal core)

To get started

• pick your condition from above, create an issue for it and edit the list to reference the issue
• look at the Drupal\node\Plugin\Condition\NodeType class (a core conditin) and Drupal\condition\Tests\Condition\NodeConditionTest.
• Compared to the core NodeType condition, we do not use configuration or configuration forms yet, but specify all parameters as context for now. (The form stuff is still to be figured out)