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https://github.com/aaronpo97/the-biergarten-app.git
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Add brewery discovery & detail pages with location-based search (#253)
This commit is contained in:
Aaron Po
@@ -124,6 +124,102 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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);
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}
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/// <inheritdoc/>
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public async Task<IEnumerable<BreweryPost>> GetAllLocationsWithinRange(CoordinateData coords, double rangeInMetres)
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{
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await using DbConnection connection = await CreateConnection();
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return await connection.QueryAsync<
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BreweryPost,
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BreweryPostLocation,
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City,
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StateProvince,
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Country,
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DistanceRow,
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BreweryPost
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> (
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"""
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DECLARE @Origin geography = geography::Point(@Latitude, @Longitude, 4326);
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SELECT
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bp.BreweryPostID,
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bp.BreweryName,
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bpl.BreweryPostLocationID,
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bpl.AddressLine1,
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bpl.AddressLine2,
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bpl.PostalCode,
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CONVERT(varbinary(max), bpl.Coordinates) AS Coordinates,
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c.CityID,
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c.CityName,
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sp.StateProvinceID,
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sp.StateProvinceName,
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sp.ISO3166_2 AS Iso31662,
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co.CountryID,
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co.CountryName,
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co.ISO3166_1 AS Iso31661,
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bpl.Coordinates.STDistance(@Origin) AS DistanceMetres
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FROM dbo.BreweryPost bp
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INNER JOIN dbo.BreweryPostLocation bpl ON bp.BreweryPostID = bpl.BreweryPostID
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LEFT JOIN dbo.City c ON bpl.CityID = c.CityID
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LEFT JOIN dbo.StateProvince sp ON c.StateProvinceID = sp.StateProvinceID
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LEFT JOIN dbo.Country co ON sp.CountryID = co.CountryID
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WHERE bpl.Coordinates IS NOT NULL
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AND bpl.Coordinates.STDistance(@Origin) <= @RangeInMetres
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ORDER BY bpl.Coordinates.STDistance(@Origin) ASC
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""",
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(post, location, city, stateProvince, country, distance) =>
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MapBreweryRowWithDistance(post, location, city, stateProvince, country, distance, coords),
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param: new
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{
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coords.Latitude,
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coords.Longitude,
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RangeInMetres = rangeInMetres
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},
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splitOn: "BreweryPostLocationID,CityID,StateProvinceID,CountryID,DistanceMetres"
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);
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}
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/// <inheritdoc/>
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public async Task<IEnumerable<BreweryPost>> GetAllLocations()
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{
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await using DbConnection connection = await CreateConnection();
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return await connection.QueryAsync<
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BreweryPost,
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BreweryPostLocation,
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City,
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StateProvince,
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Country,
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BreweryPost
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> (
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"""
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SELECT
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bp.BreweryPostID,
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bp.BreweryName,
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bpl.BreweryPostLocationID,
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bpl.AddressLine1,
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bpl.AddressLine2,
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bpl.PostalCode,
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CONVERT(varbinary(max), bpl.Coordinates) AS Coordinates,
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c.CityID,
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c.CityName,
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sp.StateProvinceID,
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sp.StateProvinceName,
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sp.ISO3166_2 AS Iso31662,
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co.CountryID,
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co.CountryName,
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co.ISO3166_1 AS Iso31661
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FROM dbo.BreweryPost bp
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INNER JOIN dbo.BreweryPostLocation bpl ON bp.BreweryPostID = bpl.BreweryPostID
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LEFT JOIN dbo.City c ON bpl.CityID = c.CityID
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LEFT JOIN dbo.StateProvince sp ON c.StateProvinceID = sp.StateProvinceID
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LEFT JOIN dbo.Country co ON sp.CountryID = co.CountryID
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WHERE bpl.Coordinates IS NOT NULL
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ORDER BY bp.BreweryPostID ASC
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""",
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MapBreweryRow,
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splitOn: "BreweryPostLocationID,CityID,StateProvinceID,CountryID"
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);
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}
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/// <inheritdoc/>
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public async Task<BreweryPost> UpdateAsync(BreweryPost brewery)
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{
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@@ -134,18 +230,18 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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{
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bool breweryExists =
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await connection.ExecuteScalarAsync<int?>(
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new CommandDefinition(
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"""
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SELECT 1 FROM
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dbo.BreweryPost
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WHERE
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BreweryPostID = @BreweryPostId
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""",
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new { brewery.BreweryPostId },
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transaction
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new CommandDefinition(
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"""
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SELECT 1 FROM
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dbo.BreweryPost
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WHERE
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BreweryPostID = @BreweryPostId
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""",
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new { brewery.BreweryPostId },
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transaction
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)
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)
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)
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is not null;
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is not null;
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if (!breweryExists)
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throw new NotFoundException("Brewery not found.");
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@@ -154,13 +250,13 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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{
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bool cityExists =
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await connection.ExecuteScalarAsync<int?>(
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new CommandDefinition(
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"SELECT 1 FROM dbo.City WHERE CityID = @CityId",
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new { brewery.Location.CityId },
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transaction
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new CommandDefinition(
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"SELECT 1 FROM dbo.City WHERE CityID = @CityId",
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new { brewery.Location.CityId },
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transaction
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)
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)
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)
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is not null;
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is not null;
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if (!cityExists)
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throw new NotFoundException("City not found.");
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@@ -212,17 +308,17 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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{
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bool locationExists =
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await connection.ExecuteScalarAsync<int?>(
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new CommandDefinition(
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"""
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SELECT 1
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FROM dbo.BreweryPostLocation
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WHERE BreweryPostID = @BreweryPostId
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""",
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new { brewery.BreweryPostId },
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transaction
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new CommandDefinition(
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"""
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SELECT 1
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FROM dbo.BreweryPostLocation
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WHERE BreweryPostID = @BreweryPostId
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""",
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new { brewery.BreweryPostId },
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transaction
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)
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)
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)
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is not null;
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is not null;
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if (locationExists)
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await connection.ExecuteAsync(
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@@ -303,9 +399,9 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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}
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return await GetByIdAsync(brewery.BreweryPostId)
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?? throw new InvalidOperationException(
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$"Brewery '{brewery.BreweryPostId}' was not found after a successful update."
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);
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?? throw new InvalidOperationException(
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$"Brewery '{brewery.BreweryPostId}' was not found after a successful update."
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);
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}
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/// <inheritdoc/>
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@@ -339,38 +435,38 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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{
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bool userExists =
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await connection.ExecuteScalarAsync<int?>(
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new CommandDefinition(
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"""
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SELECT 1
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FROM
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dbo.UserAccount
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WHERE
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UserAccountID = @PostedById
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""",
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new { brewery.PostedById },
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transaction
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new CommandDefinition(
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"""
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SELECT 1
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FROM
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dbo.UserAccount
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WHERE
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UserAccountID = @PostedById
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""",
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new { brewery.PostedById },
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transaction
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)
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)
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)
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is not null;
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is not null;
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if (!userExists)
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throw new NotFoundException("User not found.");
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bool cityExists =
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await connection.ExecuteScalarAsync<int?>(
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new CommandDefinition(
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"""
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SELECT 1
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FROM
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dbo.City
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WHERE
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CityID = @CityId
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""",
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new { brewery.Location.CityId },
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transaction
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new CommandDefinition(
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"""
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SELECT 1
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FROM
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dbo.City
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WHERE
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CityID = @CityId
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""",
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new { brewery.Location.CityId },
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transaction
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)
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)
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)
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is not null;
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is not null;
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if (!cityExists)
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throw new NotFoundException("City not found.");
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@@ -490,4 +586,29 @@ public class BreweryRepository(ISqlConnectionFactory connectionFactory)
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post.Location = location;
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return post;
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}
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}
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/// <summary>Dapper multi-mapping row for the <c>DistanceMetres</c> column computed by a range query.</summary>
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private sealed class DistanceRow
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{
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public double DistanceMetres { get; set; }
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}
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/// <summary>
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/// Composes a joined row via <see cref="MapBreweryRow" />, then attaches the DB-computed distance
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/// from <paramref name="origin" /> as the result's <see cref="BreweryPost.Distance" />.
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/// </summary>
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private static BreweryPost MapBreweryRowWithDistance(
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BreweryPost post,
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BreweryPostLocation location,
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City city,
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StateProvince stateProvince,
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Country country,
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DistanceRow distance,
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CoordinateData origin
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)
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{
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BreweryPost mapped = MapBreweryRow(post, location, city, stateProvince, country);
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mapped.Distance = new DistanceInformation(origin, distance.DistanceMetres);
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return mapped;
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}
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}
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