50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
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package server
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import (
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"encoding/json"
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"net/http"
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"github.com/gin-gonic/gin"
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"gorm.io/datatypes"
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)
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// marshalJSON converts a map to datatypes.JSON for storage. Returns nil on
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// nil input so empty detail columns stay NULL-ish rather than "null".
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func marshalJSON(m map[string]any) datatypes.JSON {
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if m == nil {
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return nil
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}
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b, err := json.Marshal(m)
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if err != nil {
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return datatypes.JSON([]byte("{}"))
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}
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return b
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}
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// bind parses the JSON request body into out and writes a 400 on failure.
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// Returns false (and aborts) when the body is invalid so callers can early-return.
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func bind(c *gin.Context, out any) bool {
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if err := c.ShouldBindJSON(out); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "请求参数无效: " + err.Error()})
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return false
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}
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return true
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}
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// jsonRaw marshals v to datatypes.JSON for storage in a JSON column.
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func jsonRaw(v any) datatypes.JSON {
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b, err := json.Marshal(v)
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if err != nil {
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return datatypes.JSON([]byte("null"))
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}
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return b
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}
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// jsonUnmarshal decodes a datatypes.JSON value into out.
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func jsonUnmarshal(raw datatypes.JSON, out any) error {
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if len(raw) == 0 {
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return nil
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}
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return json.Unmarshal(raw, out)
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}
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