本文整理汇总了Golang中github.com/couchbaselabs/sync_gateway/db.DatabaseContext.LastSequence方法的典型用法代码示例。如果您正苦于以下问题：Golang DatabaseContext.LastSequence方法的具体用法？Golang DatabaseContext.LastSequence怎么用？Golang DatabaseContext.LastSequence使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/couchbaselabs/sync_gateway/db.DatabaseContext的用法示例。
在下文中一共展示了DatabaseContext.LastSequence方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: updatePrincipal
// Updates or creates a principal from a PrincipalConfig structure.
func updatePrincipal(dbc *db.DatabaseContext, newInfo PrincipalConfig, isUser bool, allowReplace bool) (replaced bool, err error) {
// Get the existing principal, or if this is a POST make sure there isn't one:
var princ auth.Principal
var user auth.User
authenticator := dbc.Authenticator()
if isUser {
user, err = authenticator.GetUser(internalUserName(*newInfo.Name))
princ = user
} else {
princ, err = authenticator.GetRole(*newInfo.Name)
}
if err != nil {
return
}
replaced = (princ != nil)
if !replaced {
// If user/role didn't exist already, instantiate a new one:
if isUser {
user, err = authenticator.NewUser(internalUserName(*newInfo.Name), "", nil)
princ = user
} else {
princ, err = authenticator.NewRole(*newInfo.Name, nil)
}
if err != nil {
return
}
} else if !allowReplace {
err = base.HTTPErrorf(http.StatusConflict, "Already exists")
return
}
// Now update the Principal object from the properties in the request, first the channels:
updatedChannels := princ.ExplicitChannels()
if updatedChannels == nil {
updatedChannels = ch.TimedSet{}
}
lastSeq, err := dbc.LastSequence()
if err != nil {
return
}
updatedChannels.UpdateAtSequence(newInfo.ExplicitChannels, lastSeq+1)
princ.SetExplicitChannels(updatedChannels)
// Then the roles:
if isUser {
user.SetEmail(newInfo.Email)
if newInfo.Password != nil {
user.SetPassword(*newInfo.Password)
}
user.SetDisabled(newInfo.Disabled)
user.SetExplicitRoleNames(newInfo.ExplicitRoleNames)
}
// And finally save the Principal:
err = authenticator.Save(princ)
return
}示例2: updatePrincipal
// Updates or creates a principal from a PrincipalConfig structure.
func updatePrincipal(dbc *db.DatabaseContext, newInfo PrincipalConfig, isUser bool, allowReplace bool) (replaced bool, err error) {
// Get the existing principal, or if this is a POST make sure there isn't one:
var princ auth.Principal
var user auth.User
authenticator := dbc.Authenticator()
if isUser {
user, err = authenticator.GetUser(internalUserName(*newInfo.Name))
princ = user
} else {
princ, err = authenticator.GetRole(*newInfo.Name)
}
if err != nil {
return
}
replaced = (princ != nil)
if !replaced {
// If user/role didn't exist already, instantiate a new one:
if isUser {
user, err = authenticator.NewUser(internalUserName(*newInfo.Name), "", nil)
princ = user
} else {
princ, err = authenticator.NewRole(*newInfo.Name, nil)
}
if err != nil {
return
}
} else if !allowReplace {
err = base.HTTPErrorf(http.StatusConflict, "Already exists")
return
}
// Now update the Principal object from the properties in the request, first the channels:
updatedChannels := princ.ExplicitChannels()
if updatedChannels == nil {
updatedChannels = ch.TimedSet{}
}
lastSeq, err := dbc.LastSequence()
if err != nil {
return
}
updatedChannels.UpdateAtSequence(newInfo.ExplicitChannels, lastSeq+1)
princ.SetExplicitChannels(updatedChannels)
// Then the user-specific fields like roles:
if isUser {
user.SetEmail(newInfo.Email)
if newInfo.Password != nil {
user.SetPassword(*newInfo.Password)
}
user.SetDisabled(newInfo.Disabled)
// Convert the array of role strings into a TimedSet by reapplying the current sequences
// for existing roles, and using the database's last sequence for any new roles.
newRoles := ch.TimedSet{}
oldRoles := user.ExplicitRoles()
var currentSequence uint64
for _, roleName := range newInfo.ExplicitRoleNames {
since, found := oldRoles[roleName]
if !found {
if currentSequence == 0 {
currentSequence, _ = dbc.LastSequence()
if currentSequence == 0 {
currentSequence = 1
}
}
since = currentSequence
}
newRoles[roleName] = since
}
user.SetExplicitRoles(newRoles)
}
// And finally save the Principal:
err = authenticator.Save(princ)
return
}