Global Paramstore

[mossid]

• Updated all relevant documentation in docs
• Updated all code comments where relevant
• Wrote tests
• Updated CHANGELOG.md
• Updated Gaia/Examples
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

Closes: #1159
Closes: #1161

[cwgoes]

Hmm, I wonder if it might be better to have a few explicit types instead of using reflection.

[gamarin2]

Just linking these two issues that are relevant to this PR @mossid @sunnya97 :

• Add GlobalParams module/store #1159 (GlobalParams issue + some parameters to store)
• Store Message Types Status in GlobalParams  #1161 (Store Msg.Type() status in Global Params)

[codecov]

Codecov Report

Merging #1265 into master will increase coverage by 1.96%.
The diff coverage is 81.53%.

@@            Coverage Diff             @@
##           master    #1265      +/-   ##
==========================================
+ Coverage   63.78%   65.75%   +1.96%     
==========================================
  Files         122      120       -2     
  Lines        6763     6924     +161     
==========================================
+ Hits         4314     4553     +239     
+ Misses       2204     2117      -87     
- Partials      245      254       +9

[sunnya97]

@cwgoes What do you mean by a few explicit types?

[mossid]

Suspended until #1119 is merged

[mossid]

Revert all changes those depends on #1119, ready for review

[mossid]

#1119 is merged. Maybe we can merge it after applying it to stake module.

[cwgoes]

@mossid Did you want to update this with the stake module parameters prior to merge?

[mossid]

@cwgoes I think we can merge it for now, will make another PR for stake params.

[cwgoes]

Should be 40000

[cwgoes]

Should be 5 minutes

[cwgoes]

Tested ACK, would like @rigelrozanski's opinion before merge.

[cwgoes]

Needs to be reopened against develop I think.

[ebuchman]

Needs to be reopened against develop I think.

Master was merged back to develop.

[HaoyangLiu]

@mossid
How about add the two methods in getter: GetRawIterator and GetRawReverseIterator?

func (k Getter) GetRawIterator(ctx sdk.Context, start, end string) (iterator dbm.Iterator, err error) {
	store := ctx.KVStore(k.k.key)
	iterator = store.Iterator([]byte(start),[]byte(end))
	return
}

func (k Getter) GetRawReverseIterator(ctx sdk.Context, start, end string) (iterator dbm.Iterator, err error) {
	store := ctx.KVStore(k.k.key)
	iterator = store.ReverseIterator([]byte(start),[]byte(end))
	return
}

I think they are much helpful in query a set of keys.