How To Store EAV Data When It Has Nested Objects/Entities
I have json data that have both nested objects and attributes. Eg of one json object:
(After json_decode into an array:)
Array
(
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[2] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1.2] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
)
)
) )
Note: entities can be further nested in nested entities
My question is: How can I store this data into MySQL?
If it's just attributes, it's easy with a table in MySQL set up for EAV data. But if I have nested objects, I am quite lost as to how to store this. An important thing is that I'd have to be able to pivot the table and make queries like "SELECT * FROM entity WHERE A LIKE B etc.
I suspect I might have to split the nested entities into new tables of their own, then create one-to-many relationship between the "parent" and "child". However:
(1) I have no clue as to do this such that any json data can be accomodated. This probably means some program has to detect automatically a nested object.
(2) ALthough I am open to populating the data form a single json object into multiple tables, one representing each (nested) entity, I was thinking if it might be possible to populate everything into a single table in MySQL. This would prevent the need for creating new table schemas when the need arises.
mysql eav
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add a comment |
I have json data that have both nested objects and attributes. Eg of one json object:
(After json_decode into an array:)
Array
(
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[2] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1.2] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
)
)
) )
Note: entities can be further nested in nested entities
My question is: How can I store this data into MySQL?
If it's just attributes, it's easy with a table in MySQL set up for EAV data. But if I have nested objects, I am quite lost as to how to store this. An important thing is that I'd have to be able to pivot the table and make queries like "SELECT * FROM entity WHERE A LIKE B etc.
I suspect I might have to split the nested entities into new tables of their own, then create one-to-many relationship between the "parent" and "child". However:
(1) I have no clue as to do this such that any json data can be accomodated. This probably means some program has to detect automatically a nested object.
(2) ALthough I am open to populating the data form a single json object into multiple tables, one representing each (nested) entity, I was thinking if it might be possible to populate everything into a single table in MySQL. This would prevent the need for creating new table schemas when the need arises.
mysql eav
New contributor
add a comment |
I have json data that have both nested objects and attributes. Eg of one json object:
(After json_decode into an array:)
Array
(
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[2] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1.2] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
)
)
) )
Note: entities can be further nested in nested entities
My question is: How can I store this data into MySQL?
If it's just attributes, it's easy with a table in MySQL set up for EAV data. But if I have nested objects, I am quite lost as to how to store this. An important thing is that I'd have to be able to pivot the table and make queries like "SELECT * FROM entity WHERE A LIKE B etc.
I suspect I might have to split the nested entities into new tables of their own, then create one-to-many relationship between the "parent" and "child". However:
(1) I have no clue as to do this such that any json data can be accomodated. This probably means some program has to detect automatically a nested object.
(2) ALthough I am open to populating the data form a single json object into multiple tables, one representing each (nested) entity, I was thinking if it might be possible to populate everything into a single table in MySQL. This would prevent the need for creating new table schemas when the need arises.
mysql eav
New contributor
I have json data that have both nested objects and attributes. Eg of one json object:
(After json_decode into an array:)
Array
(
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[2] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
[NestedEntity1.2] => Array (
[0] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
[1] => Array (
[attributename1] => attributevalue1
[attributename2] => attributevalue2
)
)
)
) )
Note: entities can be further nested in nested entities
My question is: How can I store this data into MySQL?
If it's just attributes, it's easy with a table in MySQL set up for EAV data. But if I have nested objects, I am quite lost as to how to store this. An important thing is that I'd have to be able to pivot the table and make queries like "SELECT * FROM entity WHERE A LIKE B etc.
I suspect I might have to split the nested entities into new tables of their own, then create one-to-many relationship between the "parent" and "child". However:
(1) I have no clue as to do this such that any json data can be accomodated. This probably means some program has to detect automatically a nested object.
(2) ALthough I am open to populating the data form a single json object into multiple tables, one representing each (nested) entity, I was thinking if it might be possible to populate everything into a single table in MySQL. This would prevent the need for creating new table schemas when the need arises.
mysql eav
mysql eav
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