feat(backend): add knowledge base, innovation library and trends modules
Add knowledge item and innovation CRUD with search/filtering, published-only visibility for non-staff, admin publish/update, challenge dictionary, problem aggregation with trends (admin only) and canonical embedding text preparation for matchmaking.
This commit is contained in:
Rafał Tyński
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using SurrealDb.Net;
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using TarninaHub.Application.Abstractions;
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using TarninaHub.Application.Dtos;
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namespace TarninaHub.Infrastructure.Persistence;
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public sealed class InnovationService : IInnovationService
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{
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private const string SelectFields =
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"type::string(id) AS id, title, summary, description, type::string(challenge) AS challenge, " +
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"stage, cost, contact, media, published, updated_at";
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private readonly ISurrealDbClient _client;
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public InnovationService(ISurrealDbClient client)
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{
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_client = client;
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}
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public async Task<IReadOnlyList<InnovationResponse>> ListAsync(
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string? challengeId,
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string? stage,
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string? query,
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bool onlyPublished,
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CancellationToken cancellationToken)
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{
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var where = BuildFilter(challengeId, stage, query, onlyPublished, out var parameters);
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var response = await _client.RawQuery(
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$"SELECT {SelectFields} FROM innovation{where} ORDER BY updated_at DESC;",
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parameters,
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cancellationToken);
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response.EnsureAllOks();
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var rows = response.GetValue<List<InnovationRow>>(0) ?? [];
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return rows.Select(Map).ToList();
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}
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public async Task<InnovationResponse?> GetAsync(string innovationId, CancellationToken cancellationToken)
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{
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var (table, id) = SurrealRecordId.Split(innovationId);
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var response = await _client.RawQuery(
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$"SELECT {SelectFields} FROM type::record($table, $id) LIMIT 1;",
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new Dictionary<string, object?> { ["table"] = table, ["id"] = id },
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cancellationToken);
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response.EnsureAllOks();
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var rows = response.GetValue<List<InnovationRow>>(0) ?? [];
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return rows.Count > 0 ? Map(rows[0]) : null;
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}
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public async Task<InnovationResponse> CreateAsync(
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InnovationRequest request,
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CancellationToken cancellationToken)
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{
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var id = Guid.NewGuid().ToString("N");
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var (challengeTable, challengeId) = SurrealRecordId.Split(request.ChallengeId);
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var parameters = new Dictionary<string, object?>
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{
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["id"] = id,
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["title"] = request.Title,
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["summary"] = request.Summary ?? string.Empty,
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["description"] = request.Description ?? string.Empty,
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["challengeTable"] = challengeTable,
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["challengeId"] = challengeId,
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["stage"] = request.Stage,
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["media"] = request.Media ?? [],
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["published"] = request.Published,
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};
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var assignments = new List<string>
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{
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"title = $title", "summary = $summary", "description = $description",
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"challenge = type::record($challengeTable, $challengeId)", "stage = $stage",
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"media = $media", "published = $published", "updated_at = time::now()",
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};
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AppendOptional(assignments, parameters, "cost", request.Cost);
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AppendOptionalObject(assignments, parameters, "contact", request.Contact);
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var response = await _client.RawQuery(
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"CREATE type::record('innovation', $id) SET " + string.Join(", ", assignments) + "; " +
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$"SELECT {SelectFields} FROM type::record('innovation', $id) LIMIT 1;",
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parameters,
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cancellationToken);
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response.EnsureAllOks();
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var rows = response.GetValue<List<InnovationRow>>(1) ?? [];
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return Map(rows[0]);
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}
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public async Task<InnovationResponse?> UpdateAsync(
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string innovationId,
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InnovationRequest request,
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CancellationToken cancellationToken)
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{
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var (table, id) = SurrealRecordId.Split(innovationId);
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var (challengeTable, challengeId) = SurrealRecordId.Split(request.ChallengeId);
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var parameters = new Dictionary<string, object?>
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{
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["table"] = table,
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["id"] = id,
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["title"] = request.Title,
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["summary"] = request.Summary ?? string.Empty,
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["description"] = request.Description ?? string.Empty,
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["challengeTable"] = challengeTable,
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["challengeId"] = challengeId,
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["stage"] = request.Stage,
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["media"] = request.Media ?? [],
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["published"] = request.Published,
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};
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var assignments = new List<string>
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{
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"title = $title", "summary = $summary", "description = $description",
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"challenge = type::record($challengeTable, $challengeId)", "stage = $stage",
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"media = $media", "published = $published", "updated_at = time::now()",
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};
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AppendOptional(assignments, parameters, "cost", request.Cost, clearWhenMissing: true);
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AppendOptionalObject(assignments, parameters, "contact", request.Contact, clearWhenMissing: true);
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var response = await _client.RawQuery(
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$"UPDATE type::record($table, $id) SET {string.Join(", ", assignments)}; " +
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$"SELECT {SelectFields} FROM type::record($table, $id) LIMIT 1;",
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parameters,
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cancellationToken);
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response.EnsureAllOks();
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var rows = response.GetValue<List<InnovationRow>>(1) ?? [];
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return rows.Count > 0 ? Map(rows[0]) : null;
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}
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private static string BuildFilter(
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string? challengeId,
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string? stage,
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string? query,
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bool onlyPublished,
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out Dictionary<string, object?> parameters)
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{
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parameters = new Dictionary<string, object?>();
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var clauses = new List<string>();
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if (!string.IsNullOrWhiteSpace(challengeId))
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{
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var (table, id) = SurrealRecordId.Split(challengeId);
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clauses.Add("challenge = type::record($challengeTable, $challengeId)");
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parameters["challengeTable"] = table;
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parameters["challengeId"] = id;
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}
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if (!string.IsNullOrWhiteSpace(stage))
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{
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clauses.Add("stage = $stage");
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parameters["stage"] = stage;
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}
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if (!string.IsNullOrWhiteSpace(query))
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{
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clauses.Add(
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"(string::contains(string::lowercase(title), string::lowercase($query)) " +
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"OR string::contains(string::lowercase(summary), string::lowercase($query)))");
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parameters["query"] = query;
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}
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if (onlyPublished)
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{
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clauses.Add("published = true");
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}
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return clauses.Count > 0 ? " WHERE " + string.Join(" AND ", clauses) : string.Empty;
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}
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private static void AppendOptional(
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List<string> assignments,
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Dictionary<string, object?> parameters,
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string field,
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string? value,
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bool clearWhenMissing = false)
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{
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if (!string.IsNullOrWhiteSpace(value))
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{
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assignments.Add($"{field} = $field_{field}");
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parameters[$"field_{field}"] = value;
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}
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else if (clearWhenMissing)
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{
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assignments.Add($"{field} = NONE");
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}
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}
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private static void AppendOptionalObject(
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List<string> assignments,
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Dictionary<string, object?> parameters,
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string field,
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IReadOnlyDictionary<string, object?>? value,
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bool clearWhenMissing = false)
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{
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if (value is not null)
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{
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assignments.Add($"{field} = $field_{field}");
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parameters[$"field_{field}"] = value;
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}
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else if (clearWhenMissing)
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{
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assignments.Add($"{field} = NONE");
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}
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}
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private static InnovationResponse Map(InnovationRow row) => new(
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row.Id,
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row.Title,
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row.Summary,
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row.Description,
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row.Challenge,
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row.Stage,
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row.Cost,
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row.Contact is null ? null : row.Contact,
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row.Media.Select(item => (IReadOnlyDictionary<string, object?>)item).ToList(),
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row.Published,
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row.UpdatedAt);
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}
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