diff options
Diffstat (limited to 'api/graphql/connections/connection_template.go')
-rw-r--r-- | api/graphql/connections/connection_template.go | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/api/graphql/connections/connection_template.go b/api/graphql/connections/connection_template.go deleted file mode 100644 index b97d1ece..00000000 --- a/api/graphql/connections/connection_template.go +++ /dev/null @@ -1,122 +0,0 @@ -package connections - -import ( - "fmt" - - "github.com/cheekybits/genny/generic" - - "github.com/git-bug/git-bug/api/graphql/models" -) - -// Name define the name of the connection -type Name generic.Type - -// NodeType define the node type handled by this relay connection -type NodeType generic.Type - -// EdgeType define the edge type handled by this relay connection -type EdgeType generic.Type - -// ConnectionType define the connection type handled by this relay connection -type ConnectionType generic.Type - -// NameEdgeMaker define a function that take a NodeType and an offset and -// create an Edge. -type NameEdgeMaker func(value NodeType, offset int) Edge - -// NameConMaker define a function that create a ConnectionType -type NameConMaker func( - edges []*EdgeType, - nodes []NodeType, - info *models.PageInfo, - totalCount int) (*ConnectionType, error) - -// NameCon will paginate a source according to the input of a relay connection -func NameCon(source []NodeType, edgeMaker NameEdgeMaker, conMaker NameConMaker, input models.ConnectionInput) (*ConnectionType, error) { - var nodes []NodeType - var edges []*EdgeType - var cursors []string - var pageInfo = &models.PageInfo{} - var totalCount = len(source) - - emptyCon, _ := conMaker(edges, nodes, pageInfo, 0) - - offset := 0 - - if input.After != nil { - for i, value := range source { - edge := edgeMaker(value, i) - if edge.GetCursor() == *input.After { - // remove all previous element including the "after" one - source = source[i+1:] - offset = i + 1 - pageInfo.HasPreviousPage = true - break - } - } - } - - if input.Before != nil { - for i, value := range source { - edge := edgeMaker(value, i+offset) - - if edge.GetCursor() == *input.Before { - // remove all after element including the "before" one - pageInfo.HasNextPage = true - break - } - - e := edge.(EdgeType) - edges = append(edges, &e) - cursors = append(cursors, edge.GetCursor()) - nodes = append(nodes, value) - } - } else { - edges = make([]*EdgeType, len(source)) - cursors = make([]string, len(source)) - nodes = source - - for i, value := range source { - edge := edgeMaker(value, i+offset) - e := edge.(EdgeType) - edges[i] = &e - cursors[i] = edge.GetCursor() - } - } - - if input.First != nil { - if *input.First < 0 { - return emptyCon, fmt.Errorf("first less than zero") - } - - if len(edges) > *input.First { - // Slice result to be of length first by removing edges from the end - edges = edges[:*input.First] - cursors = cursors[:*input.First] - nodes = nodes[:*input.First] - pageInfo.HasNextPage = true - } - } - - if input.Last != nil { - if *input.Last < 0 { - return emptyCon, fmt.Errorf("last less than zero") - } - - if len(edges) > *input.Last { - // Slice result to be of length last by removing edges from the start - edges = edges[len(edges)-*input.Last:] - cursors = cursors[len(cursors)-*input.Last:] - nodes = nodes[len(nodes)-*input.Last:] - pageInfo.HasPreviousPage = true - } - } - - // Fill up pageInfo cursors - if len(cursors) > 0 { - pageInfo.StartCursor = cursors[0] - pageInfo.EndCursor = cursors[len(cursors)-1] - } - - return conMaker(edges, nodes, pageInfo, totalCount) -} |