diff options
Diffstat (limited to 'graphql/connections/connection_template.go')
| -rw-r--r-- | graphql/connections/connection_template.go | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/graphql/connections/connection_template.go b/graphql/connections/connection_template.go index 511f48d3..523141cd 100644 --- a/graphql/connections/connection_template.go +++ b/graphql/connections/connection_template.go @@ -16,9 +16,9 @@ type EdgeType generic.Type // ConnectionType define the connection type handled by this relay connection type ConnectionType generic.Type -// NodeTypeEdger define a function that take a NodeType and an offset and +// NodeTypeEdgeMaker define a function that take a NodeType and an offset and // create an Edge. -type NodeTypeEdger func(value NodeType, offset int) Edge +type NodeTypeEdgeMaker func(value NodeType, offset int) Edge // NodeTypeConMaker define a function that create a ConnectionType type NodeTypeConMaker func( @@ -28,9 +28,10 @@ type NodeTypeConMaker func( totalCount int) (ConnectionType, error) // NodeTypeCon will paginate a source according to the input of a relay connection -func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMaker, input models.ConnectionInput) (ConnectionType, error) { +func NodeTypeCon(source []NodeType, edgeMaker NodeTypeEdgeMaker, conMaker NodeTypeConMaker, input models.ConnectionInput) (ConnectionType, error) { var nodes []NodeType var edges []EdgeType + var cursors []string var pageInfo models.PageInfo emptyCon, _ := conMaker(edges, nodes, pageInfo, 0) @@ -39,7 +40,7 @@ func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMak if input.After != nil { for i, value := range source { - edge := edger(value, i) + edge := edgeMaker(value, i) if edge.GetCursor() == *input.After { // remove all previous element including the "after" one source = source[i+1:] @@ -51,7 +52,7 @@ func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMak if input.Before != nil { for i, value := range source { - edge := edger(value, i+offset) + edge := edgeMaker(value, i+offset) if edge.GetCursor() == *input.Before { // remove all after element including the "before" one @@ -59,14 +60,18 @@ func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMak } edges = append(edges, edge.(EdgeType)) + 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 { - edges[i] = edger(value, i+offset).(EdgeType) + edge := edgeMaker(value, i+offset) + edges[i] = edge.(EdgeType) + cursors[i] = edge.GetCursor() } } @@ -78,6 +83,7 @@ func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMak 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 } @@ -91,10 +97,17 @@ func NodeTypeCon(source []NodeType, edger NodeTypeEdger, conMaker NodeTypeConMak 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, len(source)) } |