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[Mahara Bot <1734006@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://reviews.mahara.org/8311
Committed: https://git.mahara.org/mahara/mahara/commit/9e59e59471c7dd6e2dc2018786acc945ed8dd372
Submitter: Robert Lyon (robertl@xxxxxxxxxxxxxxx)
Branch:    master

commit 9e59e59471c7dd6e2dc2018786acc945ed8dd372
Author: Robert Lyon <robertl@xxxxxxxxxxxxxxx>
Date:   Mon Nov 27 13:05:59 2017 +1300

Bug 1734006: Elasticsearch to work with either elasticsearch 5+ or 6+
server

This patch reworks how we do index mapping.

Old way: We mapped different types eg usr, view separately
New way: We map one 'doc' type and merge the existing mapping types to
that.
We can do this by adding a 'type' field to the mapping and making the
elasticsearch internal '_id' be populated with the type + id from
mahara, eg usr7 vs view7.

Also instead of using the '_all' mapping (which is obsoleted in 6.x)
we create an explicit 'catch_all' field that we populate via 'copy_to'
from other fields

behatnotneeded

Change-Id: Id0b89a011633fe7184518c0dc0473514729894f3
Signed-off-by: Robert Lyon <robertl@xxxxxxxxxxxxxxx>

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https://bugs.launchpad.net/bugs/1734006

Title:
  Error indexing to elasticsearch 6.0.0

Status in Mahara:
  Fix Committed

Bug description:
  When trying to index to elasticsearch version 6.0.0

  I get this error

  [WAR] 84 (lib/errors.php:536)
  [Elasticsearch\\Common\\Exceptions\\BadRequest400Exception]:
  {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Could
  not convert [mainfacetterm.index] to
  boolean"}],"type":"illegal_argument_exception","reason":"Could not
  convert [mainfacetterm.index] to
  boolean","caused_by":{"type":"illegal_argument_exception","reason":"Failed
  to parse value [not_analyzed] as only [true] or [false] are
  allowed."}},"status":400}, referer: http://mahara-
  devel/admin/site/options.php?fs=searchsettings

  The error is due to this:
  https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html

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