{"action":"created","issue":{"url":"https://api.github.com/repos/SciTools/iris/issues/2977","repository_url":"https://api.github.com/repos/SciTools/iris","labels_url":"https://api.github.com/repos/SciTools/iris/issues/2977/labels{/name}","comments_url":"https://api.github.com/repos/SciTools/iris/issues/2977/comments","events_url":"https://api.github.com/repos/SciTools/iris/issues/2977/events","html_url":"https://github.com/SciTools/iris/pull/2977","id":304893218,"node_id":"MDExOlB1bGxSZXF1ZXN0MTc0NzU3NTI5","number":2977,"title":"Provide info on pp-field indices in the file for structured um loads.","user":{"login":"pp-mo","id":2089069,"node_id":"MDQ6VXNlcjIwODkwNjk=","avatar_url":"https://avatars1.githubusercontent.com/u/2089069?v=4","gravatar_id":"","url":"https://api.github.com/users/pp-mo","html_url":"https://github.com/pp-mo","followers_url":"https://api.github.com/users/pp-mo/followers","following_url":"https://api.github.com/users/pp-mo/following{/other_user}","gists_url":"https://api.github.com/users/pp-mo/gists{/gist_id}","starred_url":"https://api.github.com/users/pp-mo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pp-mo/subscriptions","organizations_url":"https://api.github.com/users/pp-mo/orgs","repos_url":"https://api.github.com/users/pp-mo/repos","events_url":"https://api.github.com/users/pp-mo/events{/privacy}","received_events_url":"https://api.github.com/users/pp-mo/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"pp-mo","id":2089069,"node_id":"MDQ6VXNlcjIwODkwNjk=","avatar_url":"https://avatars1.githubusercontent.com/u/2089069?v=4","gravatar_id":"","url":"https://api.github.com/users/pp-mo","html_url":"https://github.com/pp-mo","followers_url":"https://api.github.com/users/pp-mo/followers","following_url":"https://api.github.com/users/pp-mo/following{/other_user}","gists_url":"https://api.github.com/users/pp-mo/gists{/gist_id}","starred_url":"https://api.github.com/users/pp-mo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pp-mo/subscriptions","organizations_url":"https://api.github.com/users/pp-mo/orgs","repos_url":"https://api.github.com/users/pp-mo/repos","events_url":"https://api.github.com/users/pp-mo/events{/privacy}","received_events_url":"https://api.github.com/users/pp-mo/received_events","type":"User","site_admin":false},"assignees":[{"login":"pp-mo","id":2089069,"node_id":"MDQ6VXNlcjIwODkwNjk=","avatar_url":"https://avatars1.githubusercontent.com/u/2089069?v=4","gravatar_id":"","url":"https://api.github.com/users/pp-mo","html_url":"https://github.com/pp-mo","followers_url":"https://api.github.com/users/pp-mo/followers","following_url":"https://api.github.com/users/pp-mo/following{/other_user}","gists_url":"https://api.github.com/users/pp-mo/gists{/gist_id}","starred_url":"https://api.github.com/users/pp-mo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pp-mo/subscriptions","organizations_url":"https://api.github.com/users/pp-mo/orgs","repos_url":"https://api.github.com/users/pp-mo/repos","events_url":"https://api.github.com/users/pp-mo/events{/privacy}","received_events_url":"https://api.github.com/users/pp-mo/received_events","type":"User","site_admin":false}],"milestone":null,"comments":6,"created_at":"2018-03-13T18:54:43Z","updated_at":"2018-10-03T11:02:04Z","closed_at":null,"author_association":"MEMBER","pull_request":{"url":"https://api.github.com/repos/SciTools/iris/pulls/2977","html_url":"https://github.com/SciTools/iris/pull/2977","diff_url":"https://github.com/SciTools/iris/pull/2977.diff","patch_url":"https://github.com/SciTools/iris/pull/2977.patch"},"body":"This intends to address problems discussed in [this comment](https://github.com/SciTools/iris/pull/2640#issuecomment-313665559) and follow-ons.\r\n\r\nImplementation notes :\r\n  * The information is attached to the 'field' arg in the load callback, i.e. in this case a FieldCollation.\r\n  * The caller should be able to use this to annotate the multidimensional collated cubes as required :  I believe this is what the users's existing code does (using normal load to annotate each raw cube with an extra  \"pseudolevel ordering\" coordinate).\r\n  * the old 'FieldCollation' class is now renamed 'BasicFieldCollation' : the new, public 'FieldCollation' is a derived class which adds the location-in-input-file info.  This preserves the original, cleaner concept.\r\n\r\nTodo:\r\n  * [x] user to confirm suitablility\r\n  * [x] needs a whatsnew\r\n "},"comment":{"url":"https://api.github.com/repos/SciTools/iris/issues/comments/426595798","html_url":"https://github.com/SciTools/iris/pull/2977#issuecomment-426595798","issue_url":"https://api.github.com/repos/SciTools/iris/issues/2977","id":426595798,"node_id":"MDEyOklzc3VlQ29tbWVudDQyNjU5NTc5OA==","user":{"login":"hdyson","id":1681657,"node_id":"MDQ6VXNlcjE2ODE2NTc=","avatar_url":"https://avatars3.githubusercontent.com/u/1681657?v=4","gravatar_id":"","url":"https://api.github.com/users/hdyson","html_url":"https://github.com/hdyson","followers_url":"https://api.github.com/users/hdyson/followers","following_url":"https://api.github.com/users/hdyson/following{/other_user}","gists_url":"https://api.github.com/users/hdyson/gists{/gist_id}","starred_url":"https://api.github.com/users/hdyson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hdyson/subscriptions","organizations_url":"https://api.github.com/users/hdyson/orgs","repos_url":"https://api.github.com/users/hdyson/repos","events_url":"https://api.github.com/users/hdyson/events{/privacy}","received_events_url":"https://api.github.com/users/hdyson/received_events","type":"User","site_admin":false},"created_at":"2018-10-03T11:02:04Z","updated_at":"2018-10-03T11:02:04Z","author_association":"CONTRIBUTOR","body":"> Is this still of interest @hdyson ?\r\n\r\nIt is, yes - we *need* to be able to preserve the pseudo level order, and would *like* to be able to use the structured loading, so this looks like it hits the sweet spot of giving us the structured loading benefit alongside retaining the existing functionality."}}
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