require buyPrice bigger than sellPrice

[gabririgo]

only in drago (drago EVO) require buyPRice bigger than sellPrice

implement: modifier bigger_than(a,b) require(b >=a)

function setPrices(uint _newSellPrice, uint _newBuyPrice) only_owner {

[gabririgo]

in setPrices() require new prices less than 50% higher of existing price maybe also require some minimum time between setting prices (like a few hours)

[wnz99]

ok, a similar check is already implemented in the UI (sellPrice < BuyPrice) .Once the contract code is finalized, we'll need to put some notice in the setPrice form so that the user is aware of the rules.

On 11 January 2018 at 11:26, escursionista notifications@github.com wrote:

in setPrices() require new prices less than 50% higher of existing price maybe also require some minimum time between setting prices (like a few hours)

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[gabririgo]

done, right now the price has to be higher than the sell price and, in order to avoid for typos

function setPrices triggers an event in eventful, hence we can monitor if someone is cheating however we have a typo prevent mechanism which does not allow the sell price to be 90% lower than the previous one and the buy price to be 10 times bigger

this will prevent errors with zeros