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67 lines
1.1 KiB
67 lines
1.1 KiB
package data |
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import ( |
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"errors" |
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"strconv" |
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"github.com/gin-gonic/gin" |
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) |
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// 状态枚举 |
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type Status int32 |
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const ( |
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StatusNone Status = 0 |
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StatusOk Status = 1 |
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StatusProcessing Status = 2 |
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StatusDeleted Status = 3 |
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StatusFailed Status = 4 |
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) |
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var ( |
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ErrorNotExists = errors.New("not exists") |
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) |
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func PageCalc(page, size int) (offset, limit int) { |
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if page <= 0 { |
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page = 1 |
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} |
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switch { |
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case size > 1000: |
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size = 1000 |
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case size <= 0: |
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size = 20 |
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} |
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offset = (page - 1) * size |
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return offset, size |
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} |
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type Page struct { |
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Page, PageSize int |
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SortBy string |
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Asc bool |
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Offset, Limit int |
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} |
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func PageArgs(ctx *gin.Context) Page { |
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page, _ := strconv.Atoi(ctx.Query("page")) |
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pageSize, _ := strconv.Atoi(ctx.Query("pageSize")) |
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sortBy := ctx.Query("sortBy") |
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asc, _ := strconv.Atoi(ctx.Query("asc")) |
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if page <= 0 { |
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page = 1 |
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} |
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if pageSize <= 0 || pageSize > 1000 { |
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pageSize = 20 |
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} |
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offset, limit := PageCalc(page, pageSize) |
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return Page{ |
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Page: page, |
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PageSize: pageSize, |
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SortBy: sortBy, |
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Asc: asc == 1, |
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Offset: offset, |
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Limit: limit, |
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} |
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}
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