Enhance collection and document management in API

- Introduced readonly field for collections and documents to indicate if they are read-only.
- Updated ListCollections endpoint to support pagination and filtering by various parameters, including keywords, status, and system flags.
- Enhanced query capabilities with dynamic field selection and sorting options for collections.
- Refactored GetCollections to ListCollections for improved clarity in functionality.
- Updated API response structures to reflect new filtering and sorting features, ensuring better data access and management.

openapi/kb/collection.go

@@ -2,9 +2,13 @@ package kb
 
 import (
 	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
 
 	"github.com/gin-gonic/gin"
 	"github.com/yaoapp/gou/graphrag/types"
+	"github.com/yaoapp/gou/model"
 	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/kun/maps"
 	"github.com/yaoapp/yao/kb"
@@ -13,6 +17,37 @@ import (
 
 // Collection Management Handlers
 
+// Collection field definitions
+var (
+	// availableCollectionFields defines all available fields for security filtering
+	availableCollectionFields = map[string]bool{
+		"id": true, "collection_id": true, "name": true, "description": true,
+		"status": true, "system": true, "readonly": true, "sort": true, "cover": true,
+		"document_count": true, "embedding_provider_id": true, "embedding_option_id": true,
+		"embedding_properties": true, "locale": true, "dimension": true,
+		"distance_metric": true, "hnsw_m": true, "ef_construction": true,
+		"ef_search": true, "num_lists": true, "num_probes": true,
+		"created_at": true, "updated_at": true,
+	}
+
+	// defaultCollectionFields defines the default compact field list
+	defaultCollectionFields = []interface{}{
+		"id", "collection_id", "name", "description", "status", "system", "readonly",
+		"sort", "cover", "document_count", "embedding_provider_id", "embedding_option_id",
+		"locale", "dimension", "distance_metric", "created_at", "updated_at",
+	}
+
+	// validCollectionSortFields defines valid fields for sorting
+	validCollectionSortFields = map[string]bool{
+		"created_at":     true,
+		"updated_at":     true,
+		"name":           true,
+		"sort":           true,
+		"document_count": true,
+		"status":         true,
+	}
+)
+
 // ProviderSettings represents the resolved provider configuration
 type ProviderSettings struct {
 	Dimension  int                    `json:"dimension"`
@@ -264,8 +299,8 @@ func GetCollection(c *gin.Context) {
 	response.RespondWithSuccess(c, response.StatusOK, collection)
 }
 
-// GetCollections retrieves collections with optional filtering
-func GetCollections(c *gin.Context) {
+// ListCollections lists collections with pagination
+func ListCollections(c *gin.Context) {
 	// Check if kb.Instance is available
 	if kb.Instance == nil {
 		errorResp := &response.ErrorResponse{
@@ -276,30 +311,194 @@ func GetCollections(c *gin.Context) {
 		return
 	}
 
-	// Build filter from query parameters
-	filter := make(map[string]interface{})
-
-	// Extract all query parameters as potential filter conditions
-	// This allows filtering by any metadata field, e.g.:
-	// GET /collections?category=documents&status=active
-	for key, values := range c.Request.URL.Query() {
-		if len(values) > 0 {
-			// Use the first value if multiple values are provided
-			filter[key] = values[0]
+	// Parse pagination parameters
+	page := 1
+	if pageStr := c.Query("page"); pageStr != "" {
+		if p, err := strconv.Atoi(pageStr); err == nil && p > 0 {
+			page = p
 		}
 	}
 
-	collections, err := kb.Instance.GetCollections(c.Request.Context(), filter)
+	pagesize := 20
+	if pagesizeStr := c.Query("pagesize"); pagesizeStr != "" {
+		if ps, err := strconv.Atoi(pagesizeStr); err == nil && ps > 0 && ps <= 100 {
+			pagesize = ps
+		}
+	}
+
+	// Get KB config
+	config, err := kb.GetConfig()
 	if err != nil {
-		// Create a custom error with the same structure but specific message
 		errorResp := &response.ErrorResponse{
 			Code:             response.ErrServerError.Code,
-			ErrorDescription: err.Error(),
+			ErrorDescription: "Failed to get KB config: " + err.Error(),
 		}
 		response.RespondWithError(c, response.StatusInternalServerError, errorResp)
 		return
 	}
-	response.RespondWithSuccess(c, response.StatusOK, collections)
+
+	// Parse select parameter
+	var selectFields []interface{}
+	if selectParam := strings.TrimSpace(c.Query("select")); selectParam != "" {
+		requestedFields := strings.Split(selectParam, ",")
+		for _, field := range requestedFields {
+			field = strings.TrimSpace(field)
+			if field != "" && availableCollectionFields[field] {
+				selectFields = append(selectFields, field)
+			}
+		}
+		// If no valid fields found, use default
+		if len(selectFields) == 0 {
+			selectFields = defaultCollectionFields
+		}
+	} else {
+		selectFields = defaultCollectionFields
+	}
+
+	// Build query parameters
+	param := model.QueryParam{
+		Select: selectFields,
+	}
+
+	// Add filters
+	var wheres []model.QueryWhere
+
+	// Filter by keywords (search in name and description)
+	if keywords := strings.TrimSpace(c.Query("keywords")); keywords != "" {
+		wheres = append(wheres, model.QueryWhere{
+			Column: "name",
+			Value:  "%" + keywords + "%",
+			OP:     "like",
+		})
+		wheres = append(wheres, model.QueryWhere{
+			Column: "description",
+			Value:  "%" + keywords + "%",
+			OP:     "like",
+			Wheres: []model.QueryWhere{},
+			Method: "orwhere",
+		})
+	}
+
+	// Filter by status (support multiple values separated by comma)
+	if statusParam := strings.TrimSpace(c.Query("status")); statusParam != "" {
+		statusList := strings.Split(statusParam, ",")
+		var statusValues []interface{}
+		for _, status := range statusList {
+			status = strings.TrimSpace(status)
+			if status != "" {
+				statusValues = append(statusValues, status)
+			}
+		}
+
+		if len(statusValues) > 0 {
+			if len(statusValues) == 1 {
+				// Single status
+				wheres = append(wheres, model.QueryWhere{
+					Column: "status",
+					Value:  statusValues[0],
+				})
+			} else {
+				// Multiple status - use IN clause
+				wheres = append(wheres, model.QueryWhere{
+					Column: "status",
+					Value:  statusValues,
+					OP:     "in",
+				})
+			}
+		}
+	}
+
+	// Filter by system flag
+	if systemParam := strings.TrimSpace(c.Query("system")); systemParam != "" {
+		switch systemParam {
+		case "true", "1":
+			wheres = append(wheres, model.QueryWhere{
+				Column: "system",
+				Value:  true,
+			})
+		case "false", "0":
+			wheres = append(wheres, model.QueryWhere{
+				Column: "system",
+				Value:  false,
+			})
+		}
+	}
+
+	// Filter by embedding_provider_id
+	if providerID := strings.TrimSpace(c.Query("embedding_provider_id")); providerID != "" {
+		wheres = append(wheres, model.QueryWhere{
+			Column: "embedding_provider_id",
+			Value:  providerID,
+		})
+	}
+
+	param.Wheres = wheres
+
+	// Add ordering
+	sortParam := strings.TrimSpace(c.Query("sort"))
+	if sortParam == "" {
+		sortParam = "created_at desc" // Default sort
+	}
+
+	// Parse sort parameter (format: "field1 direction1,field2 direction2")
+	var orders []model.QueryOrder
+	sortItems := strings.Split(sortParam, ",")
+
+	for _, sortItem := range sortItems {
+		sortItem = strings.TrimSpace(sortItem)
+		if sortItem == "" {
+			continue
+		}
+
+		// Parse each sort item (format: "field direction")
+		sortParts := strings.Fields(sortItem)
+		sortField := "created_at" // Default field
+		sortOrder := "desc"       // Default order
+
+		if len(sortParts) >= 1 {
+			sortField = sortParts[0]
+		}
+		if len(sortParts) >= 2 {
+			sortOrder = strings.ToLower(sortParts[1])
+		}
+
+		// Validate sort field
+		if !validCollectionSortFields[sortField] {
+			continue // Skip invalid fields
+		}
+
+		// Validate sort order
+		if sortOrder != "asc" && sortOrder != "desc" {
+			sortOrder = "desc" // Default order
+		}
+
+		orders = append(orders, model.QueryOrder{
+			Column: sortField,
+			Option: sortOrder,
+		})
+	}
+
+	// If no valid orders found, use default
+	if len(orders) == 0 {
+		orders = []model.QueryOrder{
+			{Column: "created_at", Option: "desc"},
+		}
+	}
+
+	param.Orders = orders
+
+	// Query collections using KB config
+	result, err := config.SearchCollections(param, page, pagesize)
+	if err != nil {
+		errorResp := &response.ErrorResponse{
+			Code:             response.ErrServerError.Code,
+			ErrorDescription: "Failed to search collections: " + err.Error(),
+		}
+		response.RespondWithError(c, response.StatusInternalServerError, errorResp)
+		return
+	}
+
+	c.JSON(http.StatusOK, result)
 }
 
 // UpdateCollectionMetadata updates the metadata of an existing collection

openapi/kb/document.go

@@ -21,7 +21,7 @@ var (
 		"id": true, "document_id": true, "collection_id": true, "name": true,
 		"description": true, "status": true, "type": true, "size": true,
 		"segment_count": true, "job_id": true, "uploader_id": true, "tags": true,
-		"locale": true, "system": true, "sort": true, "cover": true,
+		"locale": true, "system": true, "readonly": true, "sort": true, "cover": true,
 		"file_id": true, "file_name": true, "file_mime_type": true,
 		"url": true, "url_title": true, "text_content": true,
 		"converter_provider_id": true, "converter_option_id": true, "converter_properties": true,
@@ -35,7 +35,7 @@ var (
 	defaultDocumentFields = []interface{}{
 		"id", "document_id", "collection_id", "name", "description",
 		"cover", "tags", "type", "size", "segment_count", "status", "locale",
-		"file_id", "file_name", "file_mime_type", "uploader_id",
+		"system", "readonly", "file_id", "file_name", "file_mime_type", "uploader_id",
 		"url", "url_title", "text_content", // 添加 URL 和文本内容字段
 		"error_message", "created_at", "updated_at",
 	}

openapi/kb/kb.go

@@ -20,7 +20,7 @@ func Attach(group *gin.RouterGroup, oauth types.OAuth) {
 	group.Use(oauth.Guard)
 
 	// Collection Management
-	group.GET("/collections", GetCollections)
+	group.GET("/collections", ListCollections)
 	group.GET("/collections/:collectionID", GetCollection)
 	group.GET("/collections/:collectionID/exists", CollectionExists)
 	group.POST("/collections", CreateCollection)

yao/models/kb/collection.mod.yao

@@ -69,6 +69,15 @@
       "default": false,
       "nullable": false
     },
+    {
+      "name": "readonly",
+      "type": "boolean",
+      "label": "Readonly Collection",
+      "comment": "Whether this collection is read-only",
+      "index": true,
+      "default": false,
+      "nullable": false
+    },
     {
       "name": "sort",
       "type": "integer",

yao/models/kb/document.mod.yao

@@ -93,6 +93,7 @@
       "name": "segment_count",
       "type": "integer",
       "label": "Segment Count",
+      "index": true,
       "comment": "Number of segments generated from this document",
       "default": 0,
       "nullable": false
@@ -139,6 +140,14 @@
       "default": false,
       "nullable": false
     },
+    {
+      "name": "readonly",
+      "type": "boolean",
+      "label": "Readonly Document",
+      "comment": "Whether this document is read-only",
+      "default": false,
+      "nullable": false
+    },
     {
       "name": "sort",
       "type": "integer",