Merge pull request #263 from AtlasOfLivingAustralia/252-paging-for-distributions

#252 add paging for distributions

Author: adam-collins

grails-app/controllers/au/org/ala/spatial/ChecklistController.groovy

@@ -75,6 +75,20 @@ class ChecklistController {
                             schema = @Schema(implementation = String),
                             description = "Object ID to filter",
                             required = false
+                    ),
+                    @Parameter(
+                            name = "start",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Starting index for pagination",
+                            required = false
+                    ),
+                    @Parameter(
+                            name = "pageSize",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Page size for pagination",
+                            required = false
                     )
             ],
             responses = [

grails-app/controllers/au/org/ala/spatial/DistributionController.groovy

@@ -77,6 +77,20 @@ class DistributionController {
                             schema = @Schema(implementation = String),
                             description = "Object ID to filter",
                             required = false
+                    ),
+                    @Parameter(
+                            name = "start",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Starting index for pagination",
+                            required = false
+                    ),
+                    @Parameter(
+                            name = "pageSize",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Page size for pagination",
+                            required = false
                     )
             ],
             responses = [

grails-app/controllers/au/org/ala/spatial/TrackController.groovy

@@ -76,6 +76,20 @@ class TrackController {
                             schema = @Schema(implementation = String),
                             description = "Object ID to filter",
                             required = false
+                    ),
+                    @Parameter(
+                            name = "start",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Starting index for pagination",
+                            required = false
+                    ),
+                    @Parameter(
+                            name = "pageSize",
+                            in = QUERY,
+                            schema = @Schema(implementation = String),
+                            description = "Page size for pagination",
+                            required = false
                     )
             ],
             responses = [

grails-app/services/au/org/ala/spatial/DistributionsService.groovy

@@ -123,6 +123,13 @@ class DistributionsService {
             sql += " WHERE " + whereClause.toString()
         }
 
+        if (queryParams.pageSize) {
+            int start = queryParams.start as Integer ?: 0
+            sql += " LIMIT :pageSize OFFSET :offset"
+            params.put("pageSize", queryParams.pageSize as Integer)
+            params.put("offset", start)
+        }
+
         List result = new ArrayList()
 
         String[] fields = SELECT_CLAUSE.split(',')