Skip to content

feat(update): add SetCoalesceNullIf helper for conditional updates #395

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
hypergadam wants to merge 1 commit into
base: master
Choose a base branch
from
Open

feat(update): add SetCoalesceNullIf helper for conditional updates #395

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion .gitignore
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1 +1,2 @@
squirrel.test
squirrel.test
.idea
9 changes: 9 additions & 0 deletions update.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -226,6 +226,15 @@ func (b UpdateBuilder) Set(column string, value interface{}) UpdateBuilder {
return builder.Append(b, "SetClauses", setClause{column: column, value: value}).(UpdateBuilder)
}

// SetCoalesceNullIf sets the column to COALESCE(NULLIF(?, zeroValue), column).
func (b UpdateBuilder) SetCoalesceNullIf(column string, value, zeroValue interface{}) UpdateBuilder {
expr := Expr(fmt.Sprintf("COALESCE(NULLIF(?, ?), %s)", column), value, zeroValue)
return builder.Append(b, "SetClauses", setClause{
column: column,
value: expr,
}).(UpdateBuilder)
}

// SetMap is a convenience method which calls .Set for each key/value pair in clauses.
func (b UpdateBuilder) SetMap(clauses map[string]interface{}) UpdateBuilder {
keys := make([]string, len(clauses))
Expand Down