feat(user.posts): Add endpoints for retrieve posts of user

src/main/java/fr/univnantes/webandcloud/api/controllers/v1/Users.java

@@ -16,6 +16,7 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import fr.univnantes.webandcloud.api.core.ShortPost;
 import fr.univnantes.webandcloud.api.core.ShortUser;
 import fr.univnantes.webandcloud.api.core.Token;
 import fr.univnantes.webandcloud.api.core.User;
@@ -26,6 +27,7 @@ import fr.univnantes.webandcloud.api.responses.ResponseError;
 import fr.univnantes.webandcloud.api.services.DBService;
 import fr.univnantes.webandcloud.api.services.TokenService;
 import fr.univnantes.webandcloud.api.services.WithCursor;
+import fr.univnantes.webandcloud.api.services.db.DBShortPost;
 import fr.univnantes.webandcloud.api.services.db.DBShortUser;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -43,6 +45,8 @@ public class Users extends BaseController {
     @Autowired
     DBService<Token> tokenDB;
     @Autowired
+    DBShortPost shortPostDB;
+    @Autowired
     TokenService tokenService;
 
     @CrossOrigin
@@ -71,6 +75,20 @@ public class Users extends BaseController {
         return userDB.get(id);
     }
 
+    @CrossOrigin
+    @Operation(summary = "Get post of related user")
+    @ApiResponse(responseCode = "200", description = "Get post of specific user", content = @Content(mediaType = "application/json", schema = @Schema(implementation = WithCursor.class)))
+    @RequestMapping(value = "/users/{id}/posts", method = RequestMethod.GET)
+    @Nullable
+    public WithCursor<List<ShortPost>> getPostOfUser(
+            @Parameter(description = "Id of user you are looking for", example = "momo54") @PathVariable(value = "id") @NonNull String id,
+            @Parameter(description = "Limit for request", example = "2") @RequestParam @Nullable Integer limit,
+            @Parameter(description = "Cursor for next entity", example = "CgA=") @RequestParam @Nullable String cursor)
+            throws ResponseError {
+        Cursor cursorObject = cursor != null ? Cursor.fromUrlSafe(cursor) : null;
+        return shortPostDB.getParentRelatedCreatedDesc(shortUserDB.get(id), limit, cursorObject);
+    }
+
     @CrossOrigin
     @Operation(summary = "Update user")
     @ApiResponse(responseCode = "200", description = "Update user", content = @Content(mediaType = "application/json", schema = @Schema(implementation = User.class)))

src/main/java/fr/univnantes/webandcloud/api/services/db/DBShortPost.java

@@ -7,16 +7,20 @@ import java.util.List;
 import com.google.cloud.datastore.Cursor;
 import com.google.cloud.datastore.StructuredQuery.OrderBy;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import fr.univnantes.webandcloud.api.core.ShortPost;
 import fr.univnantes.webandcloud.api.core.ShortUser;
 import fr.univnantes.webandcloud.api.services.DBAncestorService;
 import fr.univnantes.webandcloud.api.services.WithCursor;
+import fr.univnantes.webandcloud.api.services.db.fields.shortPost.AuthorValue;
 
 @Service
 public class DBShortPost extends DBAncestorService<ShortPost, ShortUser> {
 
+    @Autowired
+    AuthorValue authorValue;
     OrderBy createdDesc = OrderBy.desc("postTime");
 
     public WithCursor<List<ShortPost>> getAllCreatedDesc() {
@@ -52,4 +56,37 @@ public class DBShortPost extends DBAncestorService<ShortPost, ShortUser> {
         ordersList.add(createdDesc);
         return getAll(limit, lastCursor, ordersList.toArray(new OrderBy[ordersList.size()]));
     }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Integer limit) {
+        return getParentRelatedCreatedDesc(parent, limit, (Cursor) null);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Cursor lastCursor) {
+        return getParentRelatedCreatedDesc(parent, null, lastCursor);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, OrderBy... orders) {
+        return getParentRelatedCreatedDesc(parent, null, null, orders);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Integer limit, Cursor lastCursor) {
+        return getParentRelatedCreatedDesc(parent, limit, lastCursor, new OrderBy[0]);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Integer limit, OrderBy... orders) {
+        return getParentRelatedCreatedDesc(parent, limit, null, orders);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Cursor lastCursor,
+            OrderBy... orders) {
+        return getParentRelatedCreatedDesc(parent, null, lastCursor, orders);
+    }
+
+    public WithCursor<List<ShortPost>> getParentRelatedCreatedDesc(ShortUser parent, Integer limit, Cursor lastCursor,
+            OrderBy... orders) {
+        List<OrderBy> ordersList = new ArrayList<>(Arrays.asList(orders));
+        ordersList.add(createdDesc);
+        return searchWith(limit, lastCursor, ordersList.toArray(new OrderBy[ordersList.size()]),
+                new ShortPost(null, null, null, null, null, parent, null), authorValue);
+    }
 }

src/main/java/fr/univnantes/webandcloud/api/services/db/fields/shortPost/AuthorValue.java

+package fr.univnantes.webandcloud.api.services.db.fields.shortPost;
+
+import org.springframework.stereotype.Service;
+
+import fr.univnantes.webandcloud.api.core.ShortPost;
+import fr.univnantes.webandcloud.api.core.ShortUser;
+import fr.univnantes.webandcloud.api.services.fields.AncestorFieldOf;
+
+@Service
+public class AuthorValue extends AncestorFieldOf<ShortPost, ShortUser> {
+    
+}

src/main/java/fr/univnantes/webandcloud/api/services/fields/AncestorFieldOf.java

+package fr.univnantes.webandcloud.api.services.fields;
+
+import com.google.cloud.datastore.StructuredQuery.Filter;
+import com.google.cloud.datastore.StructuredQuery.PropertyFilter;
+
+import org.springframework.beans.factory.annotation.Autowired;
+
+import fr.univnantes.webandcloud.api.core.WithAncestor;
+import fr.univnantes.webandcloud.api.core.WithIdentifier;
+import fr.univnantes.webandcloud.api.services.utils.BaseUtils;
+
+public class AncestorFieldOf<EntityUsed extends WithAncestor<Parent>, Parent extends WithIdentifier> extends FilterFieldOf<EntityUsed> {
+
+    @Autowired
+    BaseUtils<Parent> parentsUtils;
+
+    @Override
+    public Filter getFilterRelated(EntityUsed entityUsed) {
+        return PropertyFilter.hasAncestor(parentsUtils.getKeyOf(entityUsed.getAncestor()));
+    }
+
+    
+}

src/main/java/fr/univnantes/webandcloud/api/services/fields/EqualFilterFieldOf.java

@@ -7,7 +7,9 @@ import com.google.cloud.datastore.Value;
 import fr.univnantes.webandcloud.api.core.WithIdentifier;
 
 public abstract class EqualFilterFieldOf<EntityUsed extends WithIdentifier> extends FilterFieldOf<EntityUsed> {
-    
+
+    public abstract String getFieldName();
+
     public abstract Value<?> getValue(EntityUsed entityUsed);
 
     public Filter getFilterRelated(EntityUsed entityUsed) {

src/main/java/fr/univnantes/webandcloud/api/services/fields/FilterFieldOf.java

@@ -14,8 +14,6 @@ public abstract class FilterFieldOf<EntityUsed extends WithIdentifier> {
     @Autowired
     protected DBService<EntityUsed> DB;
 
-    public abstract String getFieldName();
-
     public abstract Filter getFilterRelated(EntityUsed entityUsed);
 
     public WithCursor<List<EntityUsed>> getAllRelated(EntityUsed entityUsed) {

src/main/java/fr/univnantes/webandcloud/api/services/fields/StartsWithFieldOf.java

@@ -9,6 +9,8 @@ import fr.univnantes.webandcloud.api.core.WithIdentifier;
 
 public abstract class StartsWithFieldOf<EntityUsed extends WithIdentifier> extends FilterFieldOf<EntityUsed> {
 
+    public abstract String getFieldName();
+
     public abstract String getValue(EntityUsed entityUsed);
 
     public Filter getFilterRelated(EntityUsed entityUsed) {