* Add limit type field selection
* Take into account LimitType to generate SQL request for Line graph
Also, add LimitType in default configuration for console
* Take into account LimitType to generate SQL request for Sankey graph
* Refactor on SQL query used by line and sankey
* Add limitType description in doc
* Order by max in graphLine when limitType max is used
* Fix query when using top max
Revert some modifications, as they were no longer relevant with the query fixed.
* Rework way to sort by max in line graph type
* Add configuration validation on LimitType
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Co-authored-by: Dimitri Baudrier <github.52grm@simplelogin.com>
This is a first step to make it accept configuration. Most of the
changes are quite trivial, but I also ran into some difficulties with
query columns and filters. They need the schema for parsing, but parsing
happens before dependencies are instantiated (and even if it was not the
case, parsing is stateless). Therefore, I have added a `Validate()`
method that must be called after instantiation. Various bits `panic()`
if not validated to ensure we catch all cases.
The alternative to make the component manages a global state would have
been simpler but it would break once we add the ability to add or
disable columns.
This is a bit less type-safe. We could keep type safety by redefining
all the consts in `query_consts.go` in `common/schema`, but this is
pointless as the goal is to have arbitrary dimensions at some point.
But not using it as some linters are either plain incorrect (the one
suggesting to not use nil for `c.t.Context()`) or just
debatable (checking for err value is a good practice, but there are
good reasons to opt out in some cases).
