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| 1 | +"""Add resource tables |
| 2 | +
|
| 3 | +Revision ID: 1ad667eab84e |
| 4 | +Revises: 113ced7d2d29 |
| 5 | +Create Date: 2025-07-18 20:48:07.574879+00:00 |
| 6 | +""" |
| 7 | + |
| 8 | +from collections.abc import Sequence |
| 9 | + |
| 10 | +import sqlalchemy as sa |
| 11 | + |
| 12 | +from alembic import op |
| 13 | + |
| 14 | +# revision identifiers, used by Alembic. |
| 15 | +revision: str = "1ad667eab84e" |
| 16 | +down_revision: str | None = "113ced7d2d29" |
| 17 | +branch_labels: str | Sequence[str] | None = None |
| 18 | +depends_on: str | Sequence[str] | None = None |
| 19 | + |
| 20 | + |
| 21 | +def upgrade() -> None: |
| 22 | + op.create_table( |
| 23 | + "external_reference", |
| 24 | + sa.Column("id", sa.BigInteger(), nullable=False), |
| 25 | + sa.Column("url", sa.UnicodeText(), nullable=True), |
| 26 | + sa.Column("doi", sa.UnicodeText(), nullable=True), |
| 27 | + sa.Column("arxiv_id", sa.UnicodeText(), nullable=True), |
| 28 | + sa.Column("isbn", sa.UnicodeText(), nullable=True), |
| 29 | + sa.Column("issn", sa.UnicodeText(), nullable=True), |
| 30 | + sa.Column("ads_bibcode", sa.UnicodeText(), nullable=True), |
| 31 | + sa.Column("type", sa.UnicodeText(), nullable=True), |
| 32 | + sa.Column("title", sa.UnicodeText(), nullable=True), |
| 33 | + sa.Column("publication_year", sa.UnicodeText(), nullable=True), |
| 34 | + sa.Column("volume", sa.UnicodeText(), nullable=True), |
| 35 | + sa.Column("issue", sa.UnicodeText(), nullable=True), |
| 36 | + sa.Column("number", sa.UnicodeText(), nullable=True), |
| 37 | + sa.Column("number_type", sa.UnicodeText(), nullable=True), |
| 38 | + sa.Column("first_page", sa.UnicodeText(), nullable=True), |
| 39 | + sa.Column("last_page", sa.UnicodeText(), nullable=True), |
| 40 | + sa.Column("publisher", sa.UnicodeText(), nullable=True), |
| 41 | + sa.Column("edition", sa.UnicodeText(), nullable=True), |
| 42 | + sa.Column("contributors", sa.JSON(), nullable=True), |
| 43 | + sa.PrimaryKeyConstraint("id"), |
| 44 | + sa.UniqueConstraint("doi"), |
| 45 | + sa.UniqueConstraint("arxiv_id"), |
| 46 | + sa.UniqueConstraint("isbn"), |
| 47 | + sa.UniqueConstraint("issn"), |
| 48 | + sa.UniqueConstraint("ads_bibcode"), |
| 49 | + ) |
| 50 | + op.create_table( |
| 51 | + "resource", |
| 52 | + sa.Column("id", sa.BigInteger(), autoincrement=False, nullable=False), |
| 53 | + sa.Column("resource_class", sa.String(), nullable=True), |
| 54 | + sa.Column("date_created", sa.DateTime(timezone=True), nullable=False), |
| 55 | + sa.Column("date_updated", sa.DateTime(timezone=True), nullable=False), |
| 56 | + sa.Column("title", sa.UnicodeText(), nullable=False), |
| 57 | + sa.Column("description", sa.UnicodeText(), nullable=True), |
| 58 | + sa.Column("url", sa.UnicodeText(), nullable=True), |
| 59 | + sa.Column("doi", sa.UnicodeText(), nullable=True), |
| 60 | + sa.Column( |
| 61 | + "date_resource_published", |
| 62 | + sa.DateTime(timezone=True), |
| 63 | + nullable=True, |
| 64 | + ), |
| 65 | + sa.Column( |
| 66 | + "date_resource_updated", sa.DateTime(timezone=True), nullable=True |
| 67 | + ), |
| 68 | + sa.Column("version", sa.String(), nullable=True), |
| 69 | + sa.Column("type", sa.String(), nullable=True), |
| 70 | + sa.PrimaryKeyConstraint("id"), |
| 71 | + sa.UniqueConstraint("doi"), |
| 72 | + ) |
| 73 | + op.create_table( |
| 74 | + "contributor", |
| 75 | + sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False), |
| 76 | + sa.Column("resource_id", sa.BigInteger(), nullable=False), |
| 77 | + sa.Column("order", sa.Integer(), nullable=False), |
| 78 | + sa.Column("role", sa.UnicodeText(), nullable=False), |
| 79 | + sa.Column("author_id", sa.BigInteger(), nullable=True), |
| 80 | + sa.ForeignKeyConstraint( |
| 81 | + ["author_id"], |
| 82 | + ["author.id"], |
| 83 | + ), |
| 84 | + sa.ForeignKeyConstraint( |
| 85 | + ["resource_id"], |
| 86 | + ["resource.id"], |
| 87 | + ), |
| 88 | + sa.PrimaryKeyConstraint("id"), |
| 89 | + sa.UniqueConstraint( |
| 90 | + "resource_id", |
| 91 | + "order", |
| 92 | + "role", |
| 93 | + name="uq_contributor_resource_order_role", |
| 94 | + ), |
| 95 | + ) |
| 96 | + op.create_table( |
| 97 | + "document_resource", |
| 98 | + sa.Column("id", sa.BigInteger(), nullable=False), |
| 99 | + sa.Column("series", sa.UnicodeText(), nullable=False), |
| 100 | + sa.Column("handle", sa.UnicodeText(), nullable=False), |
| 101 | + sa.Column("generator", sa.UnicodeText(), nullable=True), |
| 102 | + sa.Column("number", sa.Integer(), nullable=False), |
| 103 | + sa.ForeignKeyConstraint( |
| 104 | + ["id"], |
| 105 | + ["resource.id"], |
| 106 | + ), |
| 107 | + sa.PrimaryKeyConstraint("id"), |
| 108 | + sa.UniqueConstraint("handle"), |
| 109 | + sa.UniqueConstraint( |
| 110 | + "series", "number", name="uq_document_series_number" |
| 111 | + ), |
| 112 | + ) |
| 113 | + op.create_table( |
| 114 | + "resource_relation", |
| 115 | + sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False), |
| 116 | + sa.Column("source_resource_id", sa.BigInteger(), nullable=False), |
| 117 | + sa.Column("related_resource_id", sa.BigInteger(), nullable=True), |
| 118 | + sa.Column("related_external_ref_id", sa.BigInteger(), nullable=True), |
| 119 | + sa.Column("relation_type", sa.UnicodeText(), nullable=False), |
| 120 | + sa.ForeignKeyConstraint( |
| 121 | + ["related_external_ref_id"], |
| 122 | + ["external_reference.id"], |
| 123 | + ), |
| 124 | + sa.ForeignKeyConstraint( |
| 125 | + ["related_resource_id"], |
| 126 | + ["resource.id"], |
| 127 | + ), |
| 128 | + sa.ForeignKeyConstraint( |
| 129 | + ["source_resource_id"], |
| 130 | + ["resource.id"], |
| 131 | + ), |
| 132 | + sa.PrimaryKeyConstraint("id"), |
| 133 | + sa.CheckConstraint( |
| 134 | + "(related_resource_id IS NOT NULL AND " |
| 135 | + "related_external_ref_id IS NULL) OR " |
| 136 | + "(related_resource_id IS NULL AND " |
| 137 | + "related_external_ref_id IS NOT NULL)", |
| 138 | + name="chk_exactly_one_related", |
| 139 | + ), |
| 140 | + sa.UniqueConstraint( |
| 141 | + "source_resource_id", |
| 142 | + "related_resource_id", |
| 143 | + "related_external_ref_id", |
| 144 | + "relation_type", |
| 145 | + name="uq_resource_relation", |
| 146 | + ), |
| 147 | + ) |
| 148 | + |
| 149 | + # Add indexes for query optimization |
| 150 | + op.create_index( |
| 151 | + "idx_resource_class", "resource", ["resource_class"], unique=False |
| 152 | + ) |
| 153 | + op.create_index( |
| 154 | + "idx_resource_date_published", |
| 155 | + "resource", |
| 156 | + ["date_resource_published"], |
| 157 | + unique=False, |
| 158 | + ) |
| 159 | + op.create_index( |
| 160 | + "idx_resource_date_updated", |
| 161 | + "resource", |
| 162 | + ["date_resource_updated"], |
| 163 | + unique=False, |
| 164 | + ) |
| 165 | + op.create_index( |
| 166 | + "idx_resource_relation_source", |
| 167 | + "resource_relation", |
| 168 | + ["source_resource_id"], |
| 169 | + unique=False, |
| 170 | + ) |
| 171 | + op.create_index( |
| 172 | + "idx_resource_relation_type", |
| 173 | + "resource_relation", |
| 174 | + ["relation_type"], |
| 175 | + unique=False, |
| 176 | + ) |
| 177 | + op.create_index( |
| 178 | + "idx_document_series_number", |
| 179 | + "document_resource", |
| 180 | + ["series", "number"], |
| 181 | + unique=False, |
| 182 | + ) |
| 183 | + |
| 184 | + |
| 185 | +def downgrade() -> None: |
| 186 | + # Drop indexes first |
| 187 | + op.drop_index("idx_document_series_number", table_name="document_resource") |
| 188 | + op.drop_index("idx_resource_relation_type", table_name="resource_relation") |
| 189 | + op.drop_index( |
| 190 | + "idx_resource_relation_source", table_name="resource_relation" |
| 191 | + ) |
| 192 | + op.drop_index("idx_resource_date_updated", table_name="resource") |
| 193 | + op.drop_index("idx_resource_date_published", table_name="resource") |
| 194 | + op.drop_index("idx_resource_class", table_name="resource") |
| 195 | + |
| 196 | + # Drop tables |
| 197 | + op.drop_table("resource_relation") |
| 198 | + op.drop_table("document_resource") |
| 199 | + op.drop_table("contributor") |
| 200 | + op.drop_table("resource") |
| 201 | + op.drop_table("external_reference") |
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