public static DynamicSql SqlJoin(
this DynamicSql query, PostQueryProjection model,
PostQueryFilter filter)
{
query = DynamicSql.DeepClone(query);
var joins = model.GetFieldsArr()
.Where(f => PostQueryProjection.Joins.ContainsKey(f))
.Select(f => PostQueryProjection.Joins[f]);
if (joins.Any())
{
var joinClause = string.Join('\n', joins);
query.DynamicForm = query.DynamicForm
.Replace(DynamicSql.JOIN, joinClause);
if (filter != null)
{
var contentFilters = new List <string>();
if (filter.lang != null)
{
var paramName = query.AddAutoIncrParam(filter.lang);
var postContentLang = $"{nameof(PostContent)}.{nameof(PostContent.Lang)}";
contentFilters.Add($"{postContentLang}=@{paramName}");
}
if (contentFilters.Any())
{
var whereClause = "WHERE " + string.Join(" AND ", contentFilters);
query.DynamicForm = query.DynamicForm
.Replace(PostQueryPlaceholder.POST_CONTENT_FILTER, whereClause);
}
}
}
return(query);
}
public async Task <IActionResult> Get([FromQuery] PostQueryFilter filter,
[FromQuery] PostQuerySort sort,
[FromQuery] PostQueryProjection projection,
[FromQuery] PostQueryPaging paging,
[FromQuery] PostQueryOptions options)
{
var validationResult = _service.ValidateGetPosts(
User, filter, sort, projection, paging, options);
if (!validationResult.Valid)
{
return(BadRequest(validationResult.Result));
}
var result = await _service.QueryPostDynamic(
projection, options, filter, sort, paging);
if (options.single_only)
{
if (result == null)
{
return(NotFound(new AppResultBuilder().NotFound()));
}
return(Ok(new AppResultBuilder().Success(result.SingleResult)));
}
return(Ok(new AppResultBuilder().Success(result)));
}
public ValidationResult ValidateGetPosts(
ClaimsPrincipal principal,
PostQueryFilter filter,
PostQuerySort sort,
PostQueryProjection projection,
PostQueryPaging paging,
PostQueryOptions options)
{
return(ValidationResult.Pass());
}
public QueryResult <IDictionary <string, object> > GetPostDynamic(
IEnumerable <PostQueryRow> rows, PostQueryProjection projection,
PostQueryOptions options, int?totalCount = null)
{
var list = new List <IDictionary <string, object> >();
foreach (var o in rows)
{
var obj = GetPostDynamic(o, projection, options);
list.Add(obj);
}
var resp = new QueryResult <IDictionary <string, object> >();
resp.Results = list;
if (options.count_total)
{
resp.TotalCount = totalCount;
}
return(resp);
}
public static DynamicSql SqlProjectFields(
this DynamicSql query, PostQueryProjection model)
{
query = DynamicSql.DeepClone(query);
var finalFields = model.GetFieldsArr()
.Where(f => PostQueryProjection.Projections.ContainsKey(f))
.Select(f => PostQueryProjection.Projections[f]);
if (finalFields.Any())
{
var projectionClause = string.Join(',', finalFields);
query.DynamicForm = query.DynamicForm
.Replace(DynamicSql.PROJECTION, projectionClause);
}
var finalResults = model.GetFieldsArr()
.Where(f => PostQueryProjection.Results.ContainsKey(f))
.Select(f => PostQueryProjection.Results[f]);
query.MultiResults.AddRange(finalResults);
return(query);
}
public IDictionary <string, object> GetPostDynamic(
PostQueryRow row, PostQueryProjection projection,
PostQueryOptions options)
{
var obj = new Dictionary <string, object>();
foreach (var f in projection.GetFieldsArr())
{
switch (f)
{
case PostQueryProjection.INFO:
{
var entity = row.Post;
var content = row.Content;
obj["id"] = entity.Id;
obj["owner_id"] = entity.OwnerId;
obj["type"] = entity.Type;
obj["archived"] = entity.Archived;
obj["image_url"] = entity.ImageUrl;
var createdTime = entity.CreatedTime
.ToTimeZone(options.time_zone, options.culture, content?.Lang);
var createdTimeStr = createdTime.ToString(options.date_format, options.culture, content?.Lang);
obj["created_time"] = new
{
display = createdTimeStr,
iso = $"{createdTime.ToUniversalTime():s}Z"
};
var visibleTime = entity.VisibleTime?
.ToTimeZone(options.time_zone, options.culture, content?.Lang);
var visibleTimeStr = visibleTime?.ToString(options.date_format, options.culture, content?.Lang);
if (visibleTimeStr != null)
{
obj["visible_time"] = new
{
display = visibleTimeStr,
iso = $"{visibleTime?.ToUniversalTime():s}Z"
}
}
;
}
break;
case PostQueryProjection.CONTENT:
{
var entity = row.Content;
if (entity != null)
{
obj["content_id"] = entity.Id;
obj["lang"] = entity.Lang;
obj["description"] = entity.Description;
obj["title"] = entity.Title;
}
}
break;
case PostQueryProjection.CONTENT_CONTENT:
{
var entity = row.Content;
if (entity != null)
{
obj["content"] = entity.Content;
}
}
break;
case PostQueryProjection.OWNER:
{
var entity = row.Owner;
obj["owner"] = new
{
id = entity.Id,
code = entity.Code,
name = entity.Name,
};
}
break;
}
}
return(obj);
}
public async Task <QueryResult <PostQueryRow> > QueryPost(
PostQueryFilter filter = null,
PostQuerySort sort = null,
PostQueryProjection projection = null,
PostQueryPaging paging = null,
PostQueryOptions options = null)
{
var conn = context.Database.GetDbConnection();
var openConn = conn.OpenAsync();
var query = PostQuery.CreateDynamicSql();
#region General
if (filter != null)
{
query = query.SqlFilter(filter);
}
if (projection != null)
{
query = query.SqlJoin(projection, filter);
}
DynamicSql countQuery = null; int?totalCount = null; Task <int> countTask = null;
if (options != null && options.count_total)
{
countQuery = query.SqlCount("*");
}
if (projection != null)
{
query = query.SqlProjectFields(projection);
}
#endregion
await openConn;
if (options != null && !options.single_only)
{
#region List query
if (sort != null)
{
query = query.SqlSort(sort);
}
if (paging != null && (!options.load_all || !PostQueryOptions.IsLoadAllAllowed))
{
query = query.SqlSelectPage(paging.page, paging.limit);
}
#endregion
#region Count query
if (options.count_total)
{
countTask = conn.ExecuteScalarAsync <int>(
sql: countQuery.PreparedForm,
param: countQuery.DynamicParameters);
}
#endregion
}
var queryResult = await conn.QueryAsync(
sql : query.PreparedForm,
types : query.GetTypesArr(),
map : (objs) => ProcessMultiResults(query, objs),
splitOn : string.Join(',', query.GetSplitOns()),
param : query.DynamicParameters);
if (options != null && options.single_only)
{
var single = queryResult.FirstOrDefault();
return(new QueryResult <PostQueryRow>
{
SingleResult = single
});
}
if (options != null && options.count_total)
{
totalCount = await countTask;
}
return(new QueryResult <PostQueryRow>
{
Results = queryResult,
TotalCount = totalCount
});
}
